service init with own context

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

.github/FUNDING.yml

@@ -1,3 +0,0 @@
-# These are supported funding model platforms
-
-github: asim

.github/generate.sh

@@ -9,7 +9,7 @@ curl -s -o proto/google/api/http.proto -L https://raw.githubusercontent.com/goog
 
 for PROTO in $PROTOS; do
   echo $PROTO
-  protoc -I./proto -I. -I$(dirname $PROTO) --go_out=plugins=grpc,paths=source_relative:. --micro_out=paths=source_relative:. $PROTO
+  protoc -I./proto -I. -I$(dirname $PROTO) --go-grpc_out=paths=source_relative:. --go_out=paths=source_relative:. --micro_out=paths=source_relative:. $PROTO
 done
 
 rm -r proto

.github/renovate.json

@@ -0,0 +1,20 @@
+{
+  "extends": [
+    "config:base"
+  ],
+  "postUpdateOptions": ["gomodTidy"],
+  "packageRules": [
+    {
+      "matchUpdateTypes": ["minor", "patch", "pin", "digest"],
+      "automerge": true
+    },
+    {
+      "groupName": "all deps",
+      "separateMajorMinor": true,
+      "groupSlug": "all",
+      "packagePatterns": [
+        "*"
+      ]
+    }
+  ]
+}

.github/stale.sh

@@ -0,0 +1,13 @@
+#!/bin/bash -ex
+
+export PATH=$PATH:$(pwd)/bin
+export GO111MODULE=on
+export GOBIN=$(pwd)/bin
+
+#go get github.com/rvflash/goup@v0.4.1
+
+#goup -v ./...
+#go get github.com/psampaz/go-mod-outdated@v0.6.0
+go list -u -m -mod=mod -json all | go-mod-outdated -update -direct -ci || true
+
+#go list -u -m -json all | go-mod-outdated -update

.github/workflows/build.yml

@@ -0,0 +1,62 @@
+name: build
+on:
+  push:
+    branches:
+    - master
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+    - name: setup
+      uses: actions/setup-go@v2
+      with:
+        go-version: 1.16
+    - name: cache
+      uses: actions/cache@v2
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: ${{ runner.os }}-go-
+    - name: sdk checkout
+      uses: actions/checkout@v2
+    - name: sdk deps
+      run: go get -v -t -d ./...
+    - name: sdk test
+      env:
+        INTEGRATION_TESTS: yes
+      run: go test -mod readonly -v ./...
+    - name: tests checkout
+      uses: actions/checkout@v2
+      with:
+        repository: unistack-org/micro-tests
+        ref: refs/heads/master
+        path: micro-tests
+        fetch-depth: 1
+    - name: tests deps
+      run: |
+        cd micro-tests
+        go mod edit -replace="github.com/unistack-org/micro/v3=../"
+        go get -v -t -d ./...
+    - name: tests test
+      env:
+        INTEGRATION_TESTS: yes
+      run: cd micro-tests && go test -mod readonly -v ./...
+  lint:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v2
+      - name: lint
+        uses: golangci/golangci-lint-action@v2
+        continue-on-error: true
+        with:
+          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
+          version: v1.30
+          # Optional: working directory, useful for monorepos
+          # working-directory: somedir
+          # Optional: golangci-lint command line arguments.
+          # args: --issues-exit-code=0
+          # Optional: show only new issues if it's a pull request. The default value is `false`.
+          # only-new-issues: true

.github/workflows/docker.yml

@@ -1,22 +0,0 @@
-name: Docker
-
-on:
-  push:
-    branches:
-    - master
-    tags:
-    - v2.*
-    - v3.*
-jobs:
-  build:
-     runs-on: ubuntu-latest
-     steps:
-       - uses: actions/checkout@v2
-         name: Check out repository
-       - uses: elgohr/Publish-Docker-Github-Action@2.12
-         name: Build and Push Docker Image
-         with:
-           name: micro/go-micro
-           username: ${{ secrets.DOCKER_USERNAME }}
-           password: ${{ secrets.DOCKER_PASSWORD }}
-           tag_names: true

.github/workflows/pr.yml

@@ -1,35 +1,62 @@
-name: PR Sanity Check
-on: pull_request
-
+name: prbuild
+on:
+  pull_request:
+    branches:
+    - master
 jobs:
-
-  prtest:
-    name: PR sanity check
+  test:
+    name: test
     runs-on: ubuntu-latest
     steps:
-
-    - name: Set up Go 1.13
-      uses: actions/setup-go@v1
+    - name: setup
+      uses: actions/setup-go@v2
       with:
-        go-version: 1.13
-      id: go
-
-    - name: Check out code into the Go module directory
+        go-version: 1.16
+    - name: cache
+      uses: actions/cache@v2
+      with:
+        path: ~/go/pkg
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: ${{ runner.os }}-go-
+    - name: sdk checkout
       uses: actions/checkout@v2
-
-    - name: Get dependencies
-      run: |
-        go get -v -t -d ./...
-
-    - name: Run tests
-      id: tests
+    - name: sdk deps
+      run: go get -v -t -d ./...
+    - name: sdk test
       env:
-        IN_TRAVIS_CI: yes
-        S3_BLOB_STORE_REGION: ${{ secrets.SCALEWAY_REGION }}
-        S3_BLOB_STORE_ENDPOINT: ${{ secrets.SCALEWAY_ENDPOINT }}
-        S3_BLOB_STORE_ACCESS_KEY: ${{ secrets.SCALEWAY_ACCESS_KEY }}
-        S3_BLOB_STORE_SECRET_KEY: ${{ secrets.SCALEWAY_SECRET_KEY }}
+        INTEGRATION_TESTS: yes
+      run: go test -mod readonly -v ./...
+    - name: tests checkout
+      uses: actions/checkout@v2
+      with:
+        repository: unistack-org/micro-tests
+        ref: refs/heads/master
+        path: micro-tests
+        fetch-depth: 1
+    - name: tests deps
       run: |
-        wget -qO- https://binaries.cockroachdb.com/cockroach-v20.1.4.linux-amd64.tgz | tar  xvz
-        cockroach-v20.1.4.linux-amd64/cockroach start-single-node --insecure &
-        go test -v ./...
+        cd micro-tests
+        go mod edit -replace="github.com/unistack-org/micro/v3=../"
+        go get -v -t -d ./...
+    - name: tests test
+      env:
+        INTEGRATION_TESTS: yes
+      run: cd micro-tests && go test -mod readonly -v ./...
+  lint:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: checkout
+        uses: actions/checkout@v2
+      - name: lint
+        uses: golangci/golangci-lint-action@v2
+        continue-on-error: true
+        with:
+          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
+          version: v1.30
+          # Optional: working directory, useful for monorepos
+          # working-directory: somedir
+          # Optional: golangci-lint command line arguments.
+          # args: --issues-exit-code=0
+          # Optional: show only new issues if it's a pull request. The default value is `false`.
+          # only-new-issues: true

.github/workflows/scripts/build-all-examples.sh

@@ -1,41 +0,0 @@
-#!/bin/bash
-# set -x
-
-function build_binary {
-    echo building $1
-    pushd $1
-    go build -o _main
-    local ret=$?
-    if [ $ret -gt 0 ]; then 
-        failed=1
-        failed_arr+=($1)
-    fi
-    popd
-}
-
-function is_main {
-    grep "package main" -l -dskip $1/*.go > /dev/null 2>&1
-}
-
-
-function check_dir {
-    is_main $1
-    local ret=$?
-    if [ $ret == 0 ]; then
-        build_binary $1 $2
-    fi
-    for filename in $1/*; do
-        if [ -d $filename ]; then
-            check_dir $filename $2
-        fi
-    done
-}
-failed_arr=()
-failed=0
-go mod edit -replace github.com/micro/go-micro/v2=github.com/$2/v2@$1 
-check_dir . $1
-if [ $failed -gt 0 ]; then
-    echo Some builds failed
-    printf '%s\n' "${failed_arr[@]}"
-fi
-exit $failed

.github/workflows/scripts/build-micro.sh

@@ -1,19 +0,0 @@
-#!/bin/bash
-# set -x
-
-failed=0
-go mod edit -replace github.com/micro/go-micro/v2=github.com/$2/v2@$1 
-# basic test, build the binary
-go install
-failed=$?
-if [ $failed -gt 0 ]; then
-    exit $failed
-fi
-# unit tests
-IN_TRAVIS_CI=yes go test -v ./...
-
-./scripts/test-docker.sh
-# Generate keys for JWT tests
-ssh-keygen -f /tmp/sshkey -m pkcs8 -q -N ""
-ssh-keygen -f /tmp/sshkey -e  -m pkcs8 > /tmp/sshkey.pub
-go clean -testcache && IN_TRAVIS_CI=yes go test --tags=integration -v ./test

.github/workflows/tests.yml

@@ -1,48 +0,0 @@
-name: Run tests
-on: [push]
-
-jobs:
-
-  test:
-    name: Test repo
-    runs-on: ubuntu-latest
-    steps:
-    - name: Set up Go 1.13
-      uses: actions/setup-go@v1
-      with:
-        go-version: 1.13
-      id: go
-
-    - name: Setup Kind
-      uses: engineerd/setup-kind@v0.4.0
-      with:
-        version: v0.8.1
-
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@v2
-
-    - name: Get dependencies
-      run: |
-        go get -v -t -d ./...
-
-    - name: Run tests
-      id: tests
-      env:
-        IN_TRAVIS_CI: yes
-        S3_BLOB_STORE_REGION: ${{ secrets.SCALEWAY_REGION }}
-        S3_BLOB_STORE_ENDPOINT: ${{ secrets.SCALEWAY_ENDPOINT }}
-        S3_BLOB_STORE_ACCESS_KEY: ${{ secrets.SCALEWAY_ACCESS_KEY }}
-        S3_BLOB_STORE_SECRET_KEY: ${{ secrets.SCALEWAY_SECRET_KEY }}
-      run: |
-        kubectl apply -f runtime/kubernetes/test/test.yaml
-        sudo mkdir -p /var/run/secrets/kubernetes.io/serviceaccount
-        sudo chmod 777 /var/run/secrets/kubernetes.io/serviceaccount
-        wget -qO- https://binaries.cockroachdb.com/cockroach-v20.1.4.linux-amd64.tgz | tar -xvz
-        cockroach-v20.1.4.linux-amd64/cockroach start-single-node --insecure &
-        wget -q https://github.com/nats-io/nats-streaming-server/releases/download/v0.18.0/nats-streaming-server-v0.18.0-linux-amd64.zip
-        unzip ./nats-streaming-server-v0.18.0-linux-amd64.zip
-        export PATH=$PATH:./nats-streaming-server-v0.18.0-linux-amd64
-        nats-streaming-server &
-        go test -tags kubernetes,nats -v ./...
-  
-

.golangci.yml

@@ -1,5 +1,9 @@
 run:
-  deadline: 10m
+  deadline: 5m
+  modules-download-mode: readonly
+  skip-files:
+    - ".*\\.pb\\.go$"
+    - ".*\\.pb\\.micro\\.go$"
 linters:
   disable-all: false
   enable-all: false

CNAME

@@ -1 +0,0 @@
-go-micro.dev

Dockerfile

@@ -1,13 +0,0 @@
-FROM golang:1.13-alpine
-
-RUN mkdir /user && \
-    echo 'nobody:x:65534:65534:nobody:/:' > /user/passwd && \
-    echo 'nobody:x:65534:' > /user/group
-
-ENV GO111MODULE=on
-RUN apk --no-cache add make git gcc libtool musl-dev ca-certificates dumb-init && \
-    rm -rf /var/cache/apk/* /tmp/*
-
-WORKDIR /
-COPY ./go.mod ./go.sum ./
-RUN go mod download && rm go.mod go.sum

LICENSE

@@ -1,104 +1,192 @@
-# PolyForm Strict License 1.0.0
 
-<https://polyformproject.org/licenses/strict/1.0.0>
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
 
-## Acceptance
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
 
-In order to get any license under these terms, you must agree
-to them as both strict obligations and conditions to all
-your licenses.
+   1. Definitions.
 
-## Copyright License
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+      and distribution as defined by Sections 1 through 9 of this document.
 
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+      "Licensor" shall mean the copyright owner or entity authorized by
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-## Patent License
+      "Legal Entity" shall mean the union of the acting entity and all
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+      direction or management of such entity, whether by contract or
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-The licensor grants you a patent license for the software that
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+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
 
-***As far as the law allows, the software comes as is, without
-any warranty or condition, and the licensor will not be liable
-to you for any damages arising out of these terms or the use
-or nature of the software, under any kind of legal claim.***
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
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-## Definitions
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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-The **licensor** is the individual or entity offering these
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+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
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+      has been advised of the possibility of such damages.
 
-**You** refers to the individual or entity agreeing to these
-terms.
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
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+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
 
-**Your company** is any legal entity, sole proprietorship,
-or other kind of organization that you work for, plus all
-organizations that have control over, are under the control of,
-or are under common control with that organization.  **Control**
-means ownership of substantially all the assets of an entity,
-or the power to direct its management and policies by vote,
-contract, or otherwise.  Control can be direct or indirect.
+   END OF TERMS AND CONDITIONS
 
-**Your licenses** are all the licenses granted to you for the
-software under these terms.
+   Copyright 2015-2020 Asim Aslam.
+   Copyright 2019-2020 Unistack LLC.
 
-**Use** means anything you do with the software requiring one
-of your licenses.
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

README.md

@@ -1,16 +1,14 @@
-# Go Micro [![License](https://img.shields.io/badge/license-polyform:perimeter-blue)](https://polyformproject.org/licenses/perimeter/1.0.0/) [![Go.Dev reference](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/github.com/asim/go-micro/v3?tab=overview)
+# Micro [![License](https://img.shields.io/:license-apache-blue.svg)](https://opensource.org/licenses/Apache-2.0) [![Doc](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/github.com/unistack-org/micro/v3?tab=overview) [![Status](https://github.com/unistack-org/micro/workflows/build/badge.svg?branch=master)](https://github.com/unistack-org/micro/actions?query=workflow%3Abuild+branch%3Amaster+event%3Apush) [![Lint](https://goreportcard.com/badge/github.com/unistack-org/micro)](https://goreportcard.com/report/github.com/unistack-org/micro) [![Slack](https://img.shields.io/static/v1?label=micro&message=slack&color=blueviolet)](https://unistack-org.slack.com/messages/default)
 
-Go Micro is a framework for microservices development.
+Micro is a standard library for microservices.
 
 ## Overview
 
-Go Micro provides the core requirements for distributed systems development including RPC and Event driven communication. 
-The **Micro** philosophy is sane defaults with a pluggable architecture. We provide defaults to get you started quickly 
-but everything can be easily swapped out. 
+Micro provides the core requirements for distributed systems development including RPC and Event driven communication. 
 
 ## Features
 
-Go Micro abstracts away the details of distributed systems. Here are the main features.
+Micro abstracts away the details of distributed systems. Here are the main features.
 
 - **Authentication** - Auth is built in as a first class citizen. Authentication and authorization enable secure 
 zero trust networking by providing every service an identity and certificates. This additionally includes rule 
@@ -23,8 +21,7 @@ level config from any source such as env vars, file, etcd. You can merge the sou
 CockroachDB by default. State and persistence becomes a core requirement beyond prototyping and Micro looks to build that into the framework.
 
 - **Service Discovery** - Automatic service registration and name resolution. Service discovery is at the core of micro service 
-development. When service A needs to speak to service B it needs the location of that service. The default discovery mechanism is 
-multicast DNS (mdns), a zeroconf system.
+development. When service A needs to speak to service B it needs the location of that service.
 
 - **Load Balancing** - Client side load balancing built on service discovery. Once we have the addresses of any number of instances 
 of a service we now need a way to decide which node to route to. We use random hashed load balancing to provide even distribution 
@@ -32,24 +29,24 @@ across the services and retry a different node if there's a problem.
 
 - **Message Encoding** - Dynamic message encoding based on content-type. The client and server will use codecs along with content-type 
 to seamlessly encode and decode Go types for you. Any variety of messages could be encoded and sent from different clients. The client 
-and server handle this by default. This includes protobuf and json by default.
+and server handle this by default.
 
-- **RPC Communication** - gRPC based request/response with support for bidirectional streaming. We provide an abstraction for synchronous communication. A request made to a service will be automatically resolved, load balanced, dialled and streamed.
+- **Transport** - gRPC or http based request/response with support for bidirectional streaming. We provide an abstraction for synchronous communication. A request made to a service will be automatically resolved, load balanced, dialled and streamed.
 
-- **Async Messaging** - PubSub is built in as a first class citizen for asynchronous communication and event driven architectures. 
-Event notifications are a core pattern in micro service development. The default messaging system is a HTTP event message broker.
+- **Async Messaging** - PubSub is built in as a first class citizen for asynchronous communication and event driven architectures.
+Event notifications are a core pattern in micro service development.
 
 - **Synchronization** - Distributed systems are often built in an eventually consistent manner. Support for distributed locking and 
 leadership are built in as a Sync interface. When using an eventually consistent database or scheduling use the Sync interface.
 
-- **Pluggable Interfaces** - Go Micro makes use of Go interfaces for each distributed system abstraction. Because of this these interfaces 
-are pluggable and allows Go Micro to be runtime agnostic. You can plugin any underlying technology. Find external third party (non stdlib) 
-plugins in [github.com/asim/go-plugins](https://github.com/asim/go-plugins).
+- **Pluggable Interfaces** - Micro makes use of Go interfaces for each system abstraction. Because of this these interfaces 
+are pluggable and allows Micro to be runtime agnostic.
 
 ## Getting Started
 
-See [pkg.go.dev](https://pkg.go.dev/github.com/asim/go-micro/v3?tab=overview) for usage.
+To be created.
 
 ## License
 
-[Polyform Strict](https://polyformproject.org/licenses/strict/1.0.0/).
+Micro is Apache 2.0 licensed.
+

_config.yml

@@ -1 +0,0 @@
-theme: jekyll-theme-architect

acme/acme.go

@@ -1,30 +0,0 @@
-// Package acme abstracts away various ACME libraries
-package acme
-
-import (
-	"crypto/tls"
-	"errors"
-	"net"
-)
-
-// The Let's Encrypt ACME endpoints
-const (
-	LetsEncryptStagingCA    = "https://acme-staging-v02.api.letsencrypt.org/directory"
-	LetsEncryptProductionCA = "https://acme-v02.api.letsencrypt.org/directory"
-)
-
-var (
-	// ErrProviderNotImplemented can be returned when attempting to
-	// instantiate an unimplemented provider
-	ErrProviderNotImplemented = errors.New("Provider not implemented")
-)
-
-// Provider is a ACME provider interface
-type Provider interface {
-	// Listen returns a new listener
-	Listen(...string) (net.Listener, error)
-	// TLSConfig returns a tls config
-	TLSConfig(...string) (*tls.Config, error)
-	// Implementation of the acme provider
-	String() string
-}

acme/autocert/autocert.go

@@ -1,50 +0,0 @@
-// Package autocert is the ACME provider from golang.org/x/crypto/acme/autocert
-// This provider does not take any config.
-package autocert
-
-import (
-	"crypto/tls"
-	"net"
-	"os"
-
-	"github.com/asim/go-micro/v3/acme"
-	"github.com/asim/go-micro/v3/logger"
-	"golang.org/x/crypto/acme/autocert"
-)
-
-// autoCertACME is the ACME provider from golang.org/x/crypto/acme/autocert
-type autocertProvider struct{}
-
-// Listen implements acme.Provider
-func (a *autocertProvider) Listen(hosts ...string) (net.Listener, error) {
-	return autocert.NewListener(hosts...), nil
-}
-
-// TLSConfig returns a new tls config
-func (a *autocertProvider) TLSConfig(hosts ...string) (*tls.Config, error) {
-	// create a new manager
-	m := &autocert.Manager{
-		Prompt: autocert.AcceptTOS,
-	}
-	if len(hosts) > 0 {
-		m.HostPolicy = autocert.HostWhitelist(hosts...)
-	}
-	dir := cacheDir()
-	if err := os.MkdirAll(dir, 0700); err != nil {
-		if logger.V(logger.InfoLevel, logger.DefaultLogger) {
-			logger.Infof("warning: autocert not using a cache: %v", err)
-		}
-	} else {
-		m.Cache = autocert.DirCache(dir)
-	}
-	return m.TLSConfig(), nil
-}
-
-func (a *autocertProvider) String() string {
-	return "autocert"
-}
-
-// New returns an autocert acme.Provider
-func NewProvider() acme.Provider {
-	return &autocertProvider{}
-}

acme/autocert/autocert_test.go

@@ -1,16 +0,0 @@
-package autocert
-
-import (
-	"testing"
-)
-
-func TestAutocert(t *testing.T) {
-	l := NewProvider()
-	if _, ok := l.(*autocertProvider); !ok {
-		t.Error("NewProvider() didn't return an autocertProvider")
-	}
-	// TODO: Travis CI doesn't let us bind :443
-	// if _, err := l.NewListener(); err != nil {
-	// 	t.Error(err.Error())
-	// }
-}

acme/autocert/cache.go

@@ -1,37 +0,0 @@
-package autocert
-
-import (
-	"os"
-	"path/filepath"
-	"runtime"
-)
-
-func homeDir() string {
-	if runtime.GOOS == "windows" {
-		return os.Getenv("HOMEDRIVE") + os.Getenv("HOMEPATH")
-	}
-	if h := os.Getenv("HOME"); h != "" {
-		return h
-	}
-	return "/"
-}
-
-func cacheDir() string {
-	const base = "golang-autocert"
-	switch runtime.GOOS {
-	case "darwin":
-		return filepath.Join(homeDir(), "Library", "Caches", base)
-	case "windows":
-		for _, ev := range []string{"APPDATA", "CSIDL_APPDATA", "TEMP", "TMP"} {
-			if v := os.Getenv(ev); v != "" {
-				return filepath.Join(v, base)
-			}
-		}
-		// Worst case:
-		return filepath.Join(homeDir(), base)
-	}
-	if xdg := os.Getenv("XDG_CACHE_HOME"); xdg != "" {
-		return filepath.Join(xdg, base)
-	}
-	return filepath.Join(homeDir(), ".cache", base)
-}

acme/options.go

@@ -1,73 +0,0 @@
-package acme
-
-import "github.com/go-acme/lego/v3/challenge"
-
-// Option (or Options) are passed to New() to configure providers
-type Option func(o *Options)
-
-// Options represents various options you can present to ACME providers
-type Options struct {
-	// AcceptTLS must be set to true to indicate that you have read your
-	// provider's terms of service.
-	AcceptToS bool
-	// CA is the CA to use
-	CA string
-	// ChallengeProvider is a go-acme/lego challenge provider. Set this if you
-	// want to use DNS Challenges. Otherwise, tls-alpn-01 will be used
-	ChallengeProvider challenge.Provider
-	// Issue certificates for domains on demand. Otherwise, certs will be
-	// retrieved / issued on start-up.
-	OnDemand bool
-	// Cache is a storage interface. Most ACME libraries have an cache, but
-	// there's no defined interface, so if you consume this option
-	// sanity check it before using.
-	Cache interface{}
-}
-
-// AcceptToS indicates whether you accept your CA's terms of service
-func AcceptToS(b bool) Option {
-	return func(o *Options) {
-		o.AcceptToS = b
-	}
-}
-
-// CA sets the CA of an acme.Options
-func CA(CA string) Option {
-	return func(o *Options) {
-		o.CA = CA
-	}
-}
-
-// ChallengeProvider sets the Challenge provider of an acme.Options
-// if set, it enables the DNS challenge, otherwise tls-alpn-01 will be used.
-func ChallengeProvider(p challenge.Provider) Option {
-	return func(o *Options) {
-		o.ChallengeProvider = p
-	}
-}
-
-// OnDemand enables on-demand certificate issuance. Not recommended for use
-// with the DNS challenge, as the first connection may be very slow.
-func OnDemand(b bool) Option {
-	return func(o *Options) {
-		o.OnDemand = b
-	}
-}
-
-// Cache provides a cache / storage interface to the underlying ACME library
-// as there is no standard, this needs to be validated by the underlying
-// implentation.
-func Cache(c interface{}) Option {
-	return func(o *Options) {
-		o.Cache = c
-	}
-}
-
-// DefaultOptions uses the Let's Encrypt Production CA, with DNS Challenge disabled.
-func DefaultOptions() Options {
-	return Options{
-		AcceptToS: true,
-		CA:        LetsEncryptProductionCA,
-		OnDemand:  true,
-	}
-}

api/api.go

@@ -2,50 +2,52 @@ package api
 
 import (
 	"errors"
-	"net/http"
 	"regexp"
 	"strings"
 
-	"github.com/asim/go-micro/v3/registry"
-	"github.com/asim/go-micro/v3/server"
+	"github.com/unistack-org/micro/v3/metadata"
+	"github.com/unistack-org/micro/v3/register"
+	"github.com/unistack-org/micro/v3/server"
 )
 
-// Gateway is an api gateway interface
-type Gateway interface {
+// Api interface
+type Api interface {
 	// Initialise options
 	Init(...Option) error
 	// Get the options
 	Options() Options
-	// Register an endpoint
+	// Register a http handler
 	Register(*Endpoint) error
-	// Deregister a route
+	// Register a route
 	Deregister(*Endpoint) error
-	// Register http handler
-	Handle(string, http.Handler)
-	// Start serving requests
-	Serve() error
 	// Implementation of api
 	String() string
 }
 
+// Options holds the options
+type Options struct{}
+
+// Option func signature
+type Option func(*Options) error
+
 // Endpoint is a mapping between an RPC method and HTTP endpoint
 type Endpoint struct {
-	// RPC Method e.g. Greeter.Hello
+	// Name Greeter.Hello
 	Name string
-	// Description e.g what's this endpoint for
+	// Desciption for endpoint
 	Description string
-	// API Handler e.g rpc, proxy
+	// Handler e.g rpc, proxy
 	Handler string
-	// HTTP Host e.g example.com
-	Host []string
-	// HTTP Methods e.g GET, POST
-	Method []string
-	// HTTP Path e.g /greeter. Expect POSIX regex
-	Path []string
 	// Body destination
 	// "*" or "" - top level message value
 	// "string" - inner message value
 	Body string
+	// Host e.g example.com
+	Host []string
+	// Method e.g GET, POST
+	Method []string
+	// Path e.g /greeter. Expect POSIX regex
+	Path []string
 	// Stream flag
 	Stream bool
 }
@@ -54,10 +56,10 @@ type Endpoint struct {
 type Service struct {
 	// Name of service
 	Name string
-	// The endpoint for this service
+	// Endpoint for this service
 	Endpoint *Endpoint
-	// Versions of this service
-	Services []*registry.Service
+	// Services that provides service
+	Services []*register.Service
 }
 
 // Encode encodes an endpoint to endpoint metadata
@@ -83,24 +85,30 @@ func Encode(e *Endpoint) map[string]string {
 	set("method", strings.Join(e.Method, ","))
 	set("path", strings.Join(e.Path, ","))
 	set("host", strings.Join(e.Host, ","))
+	set("body", e.Body)
 
 	return ep
 }
 
 // Decode decodes endpoint metadata into an endpoint
-func Decode(e map[string]string) *Endpoint {
+func Decode(e metadata.Metadata) *Endpoint {
 	if e == nil {
 		return nil
 	}
 
-	return &Endpoint{
-		Name:        e["endpoint"],
-		Description: e["description"],
-		Method:      slice(e["method"]),
-		Path:        slice(e["path"]),
-		Host:        slice(e["host"]),
-		Handler:     e["handler"],
-	}
+	ep := &Endpoint{}
+	ep.Name, _ = e.Get("endpoint")
+	ep.Description, _ = e.Get("description")
+	epmethod, _ := e.Get("method")
+	ep.Method = []string{epmethod}
+	eppath, _ := e.Get("path")
+	ep.Path = []string{eppath}
+	ephost, _ := e.Get("host")
+	ep.Host = []string{ephost}
+	ep.Handler, _ = e.Get("handler")
+	ep.Body, _ = e.Get("body")
+
+	return ep
 }
 
 // Validate validates an endpoint to guarantee it won't blow up when being served
@@ -136,6 +144,28 @@ func Validate(e *Endpoint) error {
 	return nil
 }
 
+/*
+Design ideas
+
+// Gateway is an api gateway interface
+type Gateway interface {
+	// Register a http handler
+	Handle(pattern string, http.Handler)
+	// Register a route
+	RegisterRoute(r Route)
+	// Init initialises the command line.
+	// It also parses further options.
+	Init(...Option) error
+	// Run the gateway
+	Run() error
+}
+
+// NewGateway returns a new api gateway
+func NewGateway() Gateway {
+	return newGateway()
+}
+*/
+
 // WithEndpoint returns a server.HandlerOption with endpoint metadata set
 //
 // Usage:

api/api_test.go

@@ -5,6 +5,7 @@ import (
 	"testing"
 )
 
+//nolint:gocyclo
 func TestEncoding(t *testing.T) {
 	testData := []*Endpoint{
 		nil,

api/handler/http/http.go

@@ -1,104 +0,0 @@
-// Package http is a http reverse proxy handler
-package http
-
-import (
-	"errors"
-	"fmt"
-	"math/rand"
-	"net/http"
-	"net/http/httputil"
-	"net/url"
-
-	"github.com/asim/go-micro/v3/api"
-	"github.com/asim/go-micro/v3/api/handler"
-	"github.com/asim/go-micro/v3/registry"
-)
-
-const (
-	Handler = "http"
-)
-
-type httpHandler struct {
-	options handler.Options
-
-	// set with different initializer
-	s *api.Service
-}
-
-func (h *httpHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-	service, err := h.getService(r)
-	if err != nil {
-		w.WriteHeader(http.StatusInternalServerError)
-		return
-	}
-
-	if len(service) == 0 {
-		w.WriteHeader(404)
-		return
-	}
-
-	rp, err := url.Parse(service)
-	if err != nil {
-		w.WriteHeader(http.StatusInternalServerError)
-		return
-	}
-
-	httputil.NewSingleHostReverseProxy(rp).ServeHTTP(w, r)
-}
-
-// getService returns the service for this request from the selector
-func (h *httpHandler) getService(r *http.Request) (string, error) {
-	var service *api.Service
-
-	if h.s != nil {
-		// we were given the service
-		service = h.s
-	} else if h.options.Router != nil {
-		// try get service from router
-		s, err := h.options.Router.Route(r)
-		if err != nil {
-			return "", err
-		}
-		service = s
-	} else {
-		// we have no way of routing the request
-		return "", errors.New("no route found")
-	}
-
-	// get the nodes for this service
-	var nodes []*registry.Node
-	for _, srv := range service.Services {
-		nodes = append(nodes, srv.Nodes...)
-	}
-
-	// select a random node
-	if len(nodes) == 0 {
-		return "", errors.New("no route found")
-	}
-	node := nodes[rand.Int()%len(nodes)]
-
-	return fmt.Sprintf("http://%s", node.Address), nil
-}
-
-func (h *httpHandler) String() string {
-	return "http"
-}
-
-// NewHandler returns a http proxy handler
-func NewHandler(opts ...handler.Option) handler.Handler {
-	options := handler.NewOptions(opts...)
-
-	return &httpHandler{
-		options: options,
-	}
-}
-
-// WithService creates a handler with a service
-func WithService(s *api.Service, opts ...handler.Option) handler.Handler {
-	options := handler.NewOptions(opts...)
-
-	return &httpHandler{
-		options: options,
-		s:       s,
-	}
-}

api/handler/http/http_test.go

@@ -1,102 +0,0 @@
-package http
-
-import (
-	"net"
-	"net/http"
-	"net/http/httptest"
-	"testing"
-
-	"github.com/asim/go-micro/v3/api/handler"
-	"github.com/asim/go-micro/v3/api/resolver"
-	rpath "github.com/asim/go-micro/v3/api/resolver/path"
-	"github.com/asim/go-micro/v3/api/router"
-	regRouter "github.com/asim/go-micro/v3/api/router/registry"
-	"github.com/asim/go-micro/v3/registry"
-	"github.com/asim/go-micro/v3/registry/memory"
-)
-
-func testHttp(t *testing.T, path, service, ns string) {
-	r := memory.NewRegistry()
-
-	l, err := net.Listen("tcp", "127.0.0.1:0")
-	if err != nil {
-		t.Fatal(err)
-	}
-	defer l.Close()
-
-	s := &registry.Service{
-		Name: service,
-		Nodes: []*registry.Node{
-			{
-				Id:      service + "-1",
-				Address: l.Addr().String(),
-			},
-		},
-	}
-
-	r.Register(s)
-	defer r.Deregister(s)
-
-	// setup the test handler
-	m := http.NewServeMux()
-	m.HandleFunc(path, func(w http.ResponseWriter, r *http.Request) {
-		w.Write([]byte(`you got served`))
-	})
-
-	// start http test serve
-	go http.Serve(l, m)
-
-	// create new request and writer
-	w := httptest.NewRecorder()
-	req, err := http.NewRequest("POST", path, nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	// initialise the handler
-	rt := regRouter.NewRouter(
-		router.WithHandler("http"),
-		router.WithRegistry(r),
-		router.WithResolver(rpath.NewResolver(
-			resolver.WithServicePrefix(ns),
-		)),
-	)
-
-	p := NewHandler(handler.WithRouter(rt))
-
-	// execute the handler
-	p.ServeHTTP(w, req)
-
-	if w.Code != 200 {
-		t.Fatalf("Expected 200 response got %d %s", w.Code, w.Body.String())
-	}
-
-	if w.Body.String() != "you got served" {
-		t.Fatalf("Expected body: you got served. Got: %s", w.Body.String())
-	}
-}
-
-func TestHttpHandler(t *testing.T) {
-	testData := []struct {
-		path      string
-		service   string
-		namespace string
-	}{
-		{
-			"/test/foo",
-			"go.micro.api.test",
-			"go.micro.api",
-		},
-		{
-			"/test/foo/baz",
-			"go.micro.api.test",
-			"go.micro.api",
-		},
-	}
-
-	for _, d := range testData {
-		t.Run(d.service, func(t *testing.T) {
-			testHttp(t, d.path, d.service, d.namespace)
-		})
-	}
-}

api/handler/options.go

@@ -1,44 +1,45 @@
 package handler
 
 import (
-	"github.com/asim/go-micro/v3/api/router"
-	"github.com/asim/go-micro/v3/client"
-	"github.com/asim/go-micro/v3/client/grpc"
+	"github.com/unistack-org/micro/v3/api/router"
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/logger"
 )
 
 var (
+	// DefaultMaxRecvSize specifies max recv size for handler
 	DefaultMaxRecvSize int64 = 1024 * 1024 * 100 // 10Mb
 )
 
+// Options struct holds handler options
 type Options struct {
-	MaxRecvSize int64
-	Namespace   string
 	Router      router.Router
 	Client      client.Client
+	Logger      logger.Logger
+	Namespace   string
+	MaxRecvSize int64
 }
 
+// Option func signature
 type Option func(o *Options)
 
-// NewOptions fills in the blanks
+// NewOptions creates new options struct and fills it
 func NewOptions(opts ...Option) Options {
-	var options Options
+	options := Options{
+		Client:      client.DefaultClient,
+		Router:      router.DefaultRouter,
+		Logger:      logger.DefaultLogger,
+		MaxRecvSize: DefaultMaxRecvSize,
+	}
 	for _, o := range opts {
 		o(&options)
 	}
 
-	if options.Client == nil {
-		WithClient(grpc.NewClient())(&options)
-	}
-
 	// set namespace if blank
 	if len(options.Namespace) == 0 {
 		WithNamespace("go.micro.api")(&options)
 	}
 
-	if options.MaxRecvSize == 0 {
-		options.MaxRecvSize = DefaultMaxRecvSize
-	}
-
 	return options
 }
 
@@ -56,6 +57,7 @@ func WithRouter(r router.Router) Option {
 	}
 }
 
+// WithClient specifies client to be used by the handler
 func WithClient(c client.Client) Option {
 	return func(o *Options) {
 		o.Client = c

api/handler/rpc/proto/message.pb.go

@@ -1,28 +0,0 @@
-package proto
-
-type Message struct {
-	data []byte
-}
-
-func (m *Message) ProtoMessage() {}
-
-func (m *Message) Reset() {
-	*m = Message{}
-}
-
-func (m *Message) String() string {
-	return string(m.data)
-}
-
-func (m *Message) Marshal() ([]byte, error) {
-	return m.data, nil
-}
-
-func (m *Message) Unmarshal(data []byte) error {
-	m.data = data
-	return nil
-}
-
-func NewMessage(data []byte) *Message {
-	return &Message{data}
-}

api/handler/rpc/rpc.go

@@ -1,499 +0,0 @@
-// Package rpc is a go-micro rpc handler.
-package rpc
-
-import (
-	"encoding/json"
-	"io"
-	"net/http"
-	"strconv"
-	"strings"
-
-	"github.com/asim/go-micro/v3/api"
-	"github.com/asim/go-micro/v3/api/handler"
-	"github.com/asim/go-micro/v3/api/handler/rpc/proto"
-	"github.com/asim/go-micro/v3/client"
-	"github.com/asim/go-micro/v3/codec"
-	"github.com/asim/go-micro/v3/codec/jsonrpc"
-	"github.com/asim/go-micro/v3/codec/protorpc"
-	"github.com/asim/go-micro/v3/errors"
-	"github.com/asim/go-micro/v3/logger"
-	"github.com/asim/go-micro/v3/metadata"
-	"github.com/asim/go-micro/v3/util/ctx"
-	"github.com/asim/go-micro/v3/util/qson"
-	"github.com/asim/go-micro/v3/util/router"
-	jsonpatch "github.com/evanphx/json-patch/v5"
-	"github.com/oxtoacart/bpool"
-)
-
-const (
-	Handler = "rpc"
-)
-
-var (
-	// supported json codecs
-	jsonCodecs = []string{
-		"application/grpc+json",
-		"application/json",
-		"application/json-rpc",
-	}
-
-	// support proto codecs
-	protoCodecs = []string{
-		"application/grpc",
-		"application/grpc+proto",
-		"application/proto",
-		"application/protobuf",
-		"application/proto-rpc",
-		"application/octet-stream",
-	}
-
-	bufferPool = bpool.NewSizedBufferPool(1024, 8)
-)
-
-type rpcHandler struct {
-	opts handler.Options
-	s    *api.Service
-}
-
-type buffer struct {
-	io.ReadCloser
-}
-
-func (b *buffer) Write(_ []byte) (int, error) {
-	return 0, nil
-}
-
-func (h *rpcHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
-	bsize := handler.DefaultMaxRecvSize
-	if h.opts.MaxRecvSize > 0 {
-		bsize = h.opts.MaxRecvSize
-	}
-
-	r.Body = http.MaxBytesReader(w, r.Body, bsize)
-
-	defer r.Body.Close()
-	var service *api.Service
-
-	if h.s != nil {
-		// we were given the service
-		service = h.s
-	} else if h.opts.Router != nil {
-		// try get service from router
-		s, err := h.opts.Router.Route(r)
-		if err != nil {
-			writeError(w, r, errors.InternalServerError("go.micro.api", err.Error()))
-			return
-		}
-		service = s
-	} else {
-		// we have no way of routing the request
-		writeError(w, r, errors.InternalServerError("go.micro.api", "no route found"))
-		return
-	}
-
-	ct := r.Header.Get("Content-Type")
-
-	// Strip charset from Content-Type (like `application/json; charset=UTF-8`)
-	if idx := strings.IndexRune(ct, ';'); idx >= 0 {
-		ct = ct[:idx]
-	}
-
-	// micro client
-	c := h.opts.Client
-
-	// create context
-	cx := ctx.FromRequest(r)
-
-	// set merged context to request
-	*r = *r.Clone(cx)
-	// if stream we currently only support json
-	if isStream(r, service) {
-		serveWebsocket(cx, w, r, service, c)
-		return
-	}
-
-	// create custom router
-	callOpt := client.WithRouter(router.New(service.Services))
-
-	// walk the standard call path
-	// get payload
-	br, err := requestPayload(r)
-	if err != nil {
-		writeError(w, r, err)
-		return
-	}
-
-	var rsp []byte
-
-	switch {
-	// proto codecs
-	case hasCodec(ct, protoCodecs):
-		request := &proto.Message{}
-		// if the extracted payload isn't empty lets use it
-		if len(br) > 0 {
-			request = proto.NewMessage(br)
-		}
-
-		// create request/response
-		response := &proto.Message{}
-
-		req := c.NewRequest(
-			service.Name,
-			service.Endpoint.Name,
-			request,
-			client.WithContentType(ct),
-		)
-
-		// make the call
-		if err := c.Call(cx, req, response, callOpt); err != nil {
-			writeError(w, r, err)
-			return
-		}
-
-		// marshall response
-		rsp, err = response.Marshal()
-		if err != nil {
-			writeError(w, r, err)
-			return
-		}
-
-	default:
-		// if json codec is not present set to json
-		if !hasCodec(ct, jsonCodecs) {
-			ct = "application/json"
-		}
-
-		// default to trying json
-		var request json.RawMessage
-		// if the extracted payload isn't empty lets use it
-		if len(br) > 0 {
-			request = json.RawMessage(br)
-		}
-
-		// create request/response
-		var response json.RawMessage
-
-		req := c.NewRequest(
-			service.Name,
-			service.Endpoint.Name,
-			&request,
-			client.WithContentType(ct),
-		)
-		// make the call
-		if err := c.Call(cx, req, &response, callOpt); err != nil {
-			writeError(w, r, err)
-			return
-		}
-
-		// marshall response
-		rsp, err = response.MarshalJSON()
-		if err != nil {
-			writeError(w, r, err)
-			return
-		}
-	}
-
-	// write the response
-	writeResponse(w, r, rsp)
-}
-
-func (rh *rpcHandler) String() string {
-	return "rpc"
-}
-
-func hasCodec(ct string, codecs []string) bool {
-	for _, codec := range codecs {
-		if ct == codec {
-			return true
-		}
-	}
-	return false
-}
-
-// requestPayload takes a *http.Request.
-// If the request is a GET the query string parameters are extracted and marshaled to JSON and the raw bytes are returned.
-// If the request method is a POST the request body is read and returned
-func requestPayload(r *http.Request) ([]byte, error) {
-	var err error
-
-	// we have to decode json-rpc and proto-rpc because we suck
-	// well actually because there's no proxy codec right now
-
-	ct := r.Header.Get("Content-Type")
-	switch {
-	case strings.Contains(ct, "application/json-rpc"):
-		msg := codec.Message{
-			Type:   codec.Request,
-			Header: make(map[string]string),
-		}
-		c := jsonrpc.NewCodec(&buffer{r.Body})
-		if err = c.ReadHeader(&msg, codec.Request); err != nil {
-			return nil, err
-		}
-		var raw json.RawMessage
-		if err = c.ReadBody(&raw); err != nil {
-			return nil, err
-		}
-		return ([]byte)(raw), nil
-	case strings.Contains(ct, "application/proto-rpc"), strings.Contains(ct, "application/octet-stream"):
-		msg := codec.Message{
-			Type:   codec.Request,
-			Header: make(map[string]string),
-		}
-		c := protorpc.NewCodec(&buffer{r.Body})
-		if err = c.ReadHeader(&msg, codec.Request); err != nil {
-			return nil, err
-		}
-		var raw proto.Message
-		if err = c.ReadBody(&raw); err != nil {
-			return nil, err
-		}
-		return raw.Marshal()
-	case strings.Contains(ct, "application/x-www-form-urlencoded"):
-		r.ParseForm()
-
-		// generate a new set of values from the form
-		vals := make(map[string]string)
-		for k, v := range r.Form {
-			vals[k] = strings.Join(v, ",")
-		}
-
-		// marshal
-		return json.Marshal(vals)
-		// TODO: application/grpc
-	}
-
-	// otherwise as per usual
-	ctx := r.Context()
-	// dont user metadata.FromContext as it mangles names
-	md, ok := metadata.FromContext(ctx)
-	if !ok {
-		md = make(map[string]string)
-	}
-
-	// allocate maximum
-	matches := make(map[string]interface{}, len(md))
-	bodydst := ""
-
-	// get fields from url path
-	for k, v := range md {
-		k = strings.ToLower(k)
-		// filter own keys
-		if strings.HasPrefix(k, "x-api-field-") {
-			matches[strings.TrimPrefix(k, "x-api-field-")] = v
-			delete(md, k)
-		} else if k == "x-api-body" {
-			bodydst = v
-			delete(md, k)
-		}
-	}
-
-	// map of all fields
-	req := make(map[string]interface{}, len(md))
-
-	// get fields from url values
-	if len(r.URL.RawQuery) > 0 {
-		umd := make(map[string]interface{})
-		err = qson.Unmarshal(&umd, r.URL.RawQuery)
-		if err != nil {
-			return nil, err
-		}
-		for k, v := range umd {
-			matches[k] = v
-		}
-	}
-
-	// restore context without fields
-	*r = *r.Clone(metadata.NewContext(ctx, md))
-
-	for k, v := range matches {
-		ps := strings.Split(k, ".")
-		if len(ps) == 1 {
-			req[k] = v
-			continue
-		}
-		em := make(map[string]interface{})
-		em[ps[len(ps)-1]] = v
-		for i := len(ps) - 2; i > 0; i-- {
-			nm := make(map[string]interface{})
-			nm[ps[i]] = em
-			em = nm
-		}
-		if vm, ok := req[ps[0]]; ok {
-			// nested map
-			nm := vm.(map[string]interface{})
-			for vk, vv := range em {
-				nm[vk] = vv
-			}
-			req[ps[0]] = nm
-		} else {
-			req[ps[0]] = em
-		}
-	}
-	pathbuf := []byte("{}")
-	if len(req) > 0 {
-		pathbuf, err = json.Marshal(req)
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	urlbuf := []byte("{}")
-	out, err := jsonpatch.MergeMergePatches(urlbuf, pathbuf)
-	if err != nil {
-		return nil, err
-	}
-
-	switch r.Method {
-	case "GET":
-		// empty response
-		if strings.Contains(ct, "application/json") && string(out) == "{}" {
-			return out, nil
-		} else if string(out) == "{}" && !strings.Contains(ct, "application/json") {
-			return []byte{}, nil
-		}
-		return out, nil
-	case "PATCH", "POST", "PUT", "DELETE":
-		bodybuf := []byte("{}")
-		buf := bufferPool.Get()
-		defer bufferPool.Put(buf)
-		if _, err := buf.ReadFrom(r.Body); err != nil {
-			return nil, err
-		}
-		if b := buf.Bytes(); len(b) > 0 {
-			bodybuf = b
-		}
-		if bodydst == "" || bodydst == "*" {
-			// jsonpatch resequences the json object so we avoid it if possible (some usecases such as
-			// validating signatures require the request body to be unchangedd). We're keeping support
-			// for the custom paramaters for backwards compatability reasons.
-			if string(out) == "{}" {
-				return bodybuf, nil
-			}
-
-			if out, err = jsonpatch.MergeMergePatches(out, bodybuf); err == nil {
-				return out, nil
-			}
-		}
-		var jsonbody map[string]interface{}
-		if json.Valid(bodybuf) {
-			if err = json.Unmarshal(bodybuf, &jsonbody); err != nil {
-				return nil, err
-			}
-		}
-		dstmap := make(map[string]interface{})
-		ps := strings.Split(bodydst, ".")
-		if len(ps) == 1 {
-			if jsonbody != nil {
-				dstmap[ps[0]] = jsonbody
-			} else {
-				// old unexpected behaviour
-				dstmap[ps[0]] = bodybuf
-			}
-		} else {
-			em := make(map[string]interface{})
-			if jsonbody != nil {
-				em[ps[len(ps)-1]] = jsonbody
-			} else {
-				// old unexpected behaviour
-				em[ps[len(ps)-1]] = bodybuf
-			}
-			for i := len(ps) - 2; i > 0; i-- {
-				nm := make(map[string]interface{})
-				nm[ps[i]] = em
-				em = nm
-			}
-			dstmap[ps[0]] = em
-		}
-
-		bodyout, err := json.Marshal(dstmap)
-		if err != nil {
-			return nil, err
-		}
-
-		if out, err = jsonpatch.MergeMergePatches(out, bodyout); err == nil {
-			return out, nil
-		}
-
-		//fallback to previous unknown behaviour
-		return bodybuf, nil
-	}
-
-	return []byte{}, nil
-}
-
-func writeError(w http.ResponseWriter, r *http.Request, err error) {
-	ce := errors.Parse(err.Error())
-
-	switch ce.Code {
-	case 0:
-		// assuming it's totally screwed
-		ce.Code = http.StatusInternalServerError
-		ce.Id = "go.micro.api"
-		ce.Status = http.StatusText(http.StatusInternalServerError)
-		ce.Detail = "error during request: " + ce.Detail
-		w.WriteHeader(http.StatusInternalServerError)
-	default:
-		w.WriteHeader(int(ce.Code))
-	}
-
-	// response content type
-	w.Header().Set("Content-Type", "application/json")
-
-	// Set trailers
-	if strings.Contains(r.Header.Get("Content-Type"), "application/grpc") {
-		w.Header().Set("Trailer", "grpc-status")
-		w.Header().Set("Trailer", "grpc-message")
-		w.Header().Set("grpc-status", "13")
-		w.Header().Set("grpc-message", ce.Detail)
-	}
-
-	_, werr := w.Write([]byte(ce.Error()))
-	if werr != nil {
-		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-			logger.Error(werr)
-		}
-	}
-}
-
-func writeResponse(w http.ResponseWriter, r *http.Request, rsp []byte) {
-	w.Header().Set("Content-Type", r.Header.Get("Content-Type"))
-	w.Header().Set("Content-Length", strconv.Itoa(len(rsp)))
-
-	// Set trailers
-	if strings.Contains(r.Header.Get("Content-Type"), "application/grpc") {
-		w.Header().Set("Trailer", "grpc-status")
-		w.Header().Set("Trailer", "grpc-message")
-		w.Header().Set("grpc-status", "0")
-		w.Header().Set("grpc-message", "")
-	}
-
-	// write 204 status if rsp is nil
-	if len(rsp) == 0 {
-		w.WriteHeader(http.StatusNoContent)
-	}
-
-	// write response
-	_, err := w.Write(rsp)
-	if err != nil {
-		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-			logger.Error(err)
-		}
-	}
-
-}
-
-func NewHandler(opts ...handler.Option) handler.Handler {
-	options := handler.NewOptions(opts...)
-	return &rpcHandler{
-		opts: options,
-	}
-}
-
-func WithService(s *api.Service, opts ...handler.Option) handler.Handler {
-	options := handler.NewOptions(opts...)
-	return &rpcHandler{
-		opts: options,
-		s:    s,
-	}
-}

api/handler/rpc/stream.go

@@ -1,261 +0,0 @@
-package rpc
-
-import (
-	"bytes"
-	"context"
-	"encoding/json"
-	"io"
-	"net/http"
-	"strings"
-	"time"
-
-	"github.com/asim/go-micro/v3/api"
-	"github.com/asim/go-micro/v3/client"
-	raw "github.com/asim/go-micro/v3/codec/bytes"
-	"github.com/asim/go-micro/v3/logger"
-	"github.com/asim/go-micro/v3/util/router"
-	"github.com/gobwas/httphead"
-	"github.com/gobwas/ws"
-	"github.com/gobwas/ws/wsutil"
-)
-
-// serveWebsocket will stream rpc back over websockets assuming json
-func serveWebsocket(ctx context.Context, w http.ResponseWriter, r *http.Request, service *api.Service, c client.Client) {
-	var op ws.OpCode
-
-	ct := r.Header.Get("Content-Type")
-	// Strip charset from Content-Type (like `application/json; charset=UTF-8`)
-	if idx := strings.IndexRune(ct, ';'); idx >= 0 {
-		ct = ct[:idx]
-	}
-
-	// check proto from request
-	switch ct {
-	case "application/json":
-		op = ws.OpText
-	default:
-		op = ws.OpBinary
-	}
-
-	hdr := make(http.Header)
-	if proto, ok := r.Header["Sec-WebSocket-Protocol"]; ok {
-		for _, p := range proto {
-			switch p {
-			case "binary":
-				hdr["Sec-WebSocket-Protocol"] = []string{"binary"}
-				op = ws.OpBinary
-			}
-		}
-	}
-	payload, err := requestPayload(r)
-	if err != nil {
-		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-			logger.Error(err)
-		}
-		return
-	}
-
-	upgrader := ws.HTTPUpgrader{Timeout: 5 * time.Second,
-		Protocol: func(proto string) bool {
-			if strings.Contains(proto, "binary") {
-				return true
-			}
-			// fallback to support all protocols now
-			return true
-		},
-		Extension: func(httphead.Option) bool {
-			// disable extensions for compatibility
-			return false
-		},
-		Header: hdr,
-	}
-
-	conn, rw, _, err := upgrader.Upgrade(r, w)
-	if err != nil {
-		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-			logger.Error(err)
-		}
-		return
-	}
-
-	defer func() {
-		if err := conn.Close(); err != nil {
-			if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-				logger.Error(err)
-			}
-			return
-		}
-	}()
-
-	var request interface{}
-	if !bytes.Equal(payload, []byte(`{}`)) {
-		switch ct {
-		case "application/json", "":
-			m := json.RawMessage(payload)
-			request = &m
-		default:
-			request = &raw.Frame{Data: payload}
-		}
-	}
-
-	// we always need to set content type for message
-	if ct == "" {
-		ct = "application/json"
-	}
-	req := c.NewRequest(
-		service.Name,
-		service.Endpoint.Name,
-		request,
-		client.WithContentType(ct),
-		client.StreamingRequest(),
-	)
-
-	// create custom router
-	callOpt := client.WithRouter(router.New(service.Services))
-
-	// create a new stream
-	stream, err := c.Stream(ctx, req, callOpt)
-	if err != nil {
-		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-			logger.Error(err)
-		}
-		return
-	}
-
-	if request != nil {
-		if err = stream.Send(request); err != nil {
-			if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-				logger.Error(err)
-			}
-			return
-		}
-	}
-
-	go writeLoop(rw, stream)
-
-	rsp := stream.Response()
-
-	// receive from stream and send to client
-	for {
-		select {
-		case <-ctx.Done():
-			return
-		case <-stream.Context().Done():
-			return
-		default:
-			// read backend response body
-			buf, err := rsp.Read()
-			if err != nil {
-				// wants to avoid import  grpc/status.Status
-				if strings.Contains(err.Error(), "context canceled") {
-					return
-				}
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-					logger.Error(err)
-				}
-				return
-			}
-
-			// write the response
-			if err := wsutil.WriteServerMessage(rw, op, buf); err != nil {
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-					logger.Error(err)
-				}
-				return
-			}
-			if err = rw.Flush(); err != nil {
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-					logger.Error(err)
-				}
-				return
-			}
-		}
-	}
-}
-
-// writeLoop
-func writeLoop(rw io.ReadWriter, stream client.Stream) {
-	// close stream when done
-	defer stream.Close()
-
-	for {
-		select {
-		case <-stream.Context().Done():
-			return
-		default:
-			buf, op, err := wsutil.ReadClientData(rw)
-			if err != nil {
-				if wserr, ok := err.(wsutil.ClosedError); ok {
-					switch wserr.Code {
-					case ws.StatusGoingAway:
-						// this happens when user leave the page
-						return
-					case ws.StatusNormalClosure, ws.StatusNoStatusRcvd:
-						// this happens when user close ws connection, or we don't get any status
-						return
-					}
-				}
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-					logger.Error(err)
-				}
-				return
-			}
-			switch op {
-			default:
-				// not relevant
-				continue
-			case ws.OpText, ws.OpBinary:
-				break
-			}
-			// send to backend
-			// default to trying json
-			// if the extracted payload isn't empty lets use it
-			request := &raw.Frame{Data: buf}
-			if err := stream.Send(request); err != nil {
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-					logger.Error(err)
-				}
-				return
-			}
-		}
-	}
-}
-
-func isStream(r *http.Request, srv *api.Service) bool {
-	// check if it's a web socket
-	if !isWebSocket(r) {
-		return false
-	}
-	// check if the endpoint supports streaming
-	for _, service := range srv.Services {
-		for _, ep := range service.Endpoints {
-			// skip if it doesn't match the name
-			if ep.Name != srv.Endpoint.Name {
-				continue
-			}
-			// matched if the name
-			if v := ep.Metadata["stream"]; v == "true" {
-				return true
-			}
-		}
-	}
-	return false
-}
-
-func isWebSocket(r *http.Request) bool {
-	contains := func(key, val string) bool {
-		vv := strings.Split(r.Header.Get(key), ",")
-		for _, v := range vv {
-			if val == strings.ToLower(strings.TrimSpace(v)) {
-				return true
-			}
-		}
-		return false
-	}
-
-	if contains("Connection", "upgrade") && contains("Upgrade", "websocket") {
-		return true
-	}
-
-	return false
-}

api/http/http.go

@@ -1,108 +0,0 @@
-// Package http provides a http server with features; acme, cors, etc
-package http
-
-import (
-	"crypto/tls"
-	"net"
-	"net/http"
-	"sync"
-
-	"github.com/asim/go-micro/v3/api"
-	"github.com/asim/go-micro/v3/logger"
-)
-
-type httpServer struct {
-	mux  *http.ServeMux
-	opts api.Options
-
-	mtx     sync.RWMutex
-	address string
-	exit    chan chan error
-}
-
-// NewGateway returns a new HTTP api gateway
-func NewGateway(opts ...api.Option) api.Gateway {
-	var options api.Options
-	for _, o := range opts {
-		o(&options)
-	}
-
-	return &httpServer{
-		opts: options,
-		mux:  http.NewServeMux(),
-		exit: make(chan chan error),
-	}
-}
-
-func (s *httpServer) Init(opts ...api.Option) error {
-	for _, o := range opts {
-		o(&s.opts)
-	}
-	return nil
-}
-
-func (s *httpServer) Options() api.Options {
-	return s.opts
-}
-
-func (s *httpServer) Register(ep *api.Endpoint) error   { return nil }
-func (s *httpServer) Deregister(ep *api.Endpoint) error { return nil }
-
-func (s *httpServer) Handle(path string, handler http.Handler) {
-	s.mux.Handle(path, handler)
-}
-
-func (s *httpServer) Serve() error {
-	if err := s.Start(); err != nil {
-		return err
-	}
-
-	<-s.exit
-	return nil
-}
-
-func (s *httpServer) Start() error {
-	var l net.Listener
-	var err error
-
-	if s.opts.EnableACME && s.opts.ACMEProvider != nil {
-		// should we check the address to make sure its using :443?
-		l, err = s.opts.ACMEProvider.Listen(s.opts.ACMEHosts...)
-	} else if s.opts.EnableTLS && s.opts.TLSConfig != nil {
-		l, err = tls.Listen("tcp", s.opts.Address, s.opts.TLSConfig)
-	} else {
-		// otherwise plain listen
-		l, err = net.Listen("tcp", s.opts.Address)
-	}
-	if err != nil {
-		return err
-	}
-
-	if logger.V(logger.InfoLevel, logger.DefaultLogger) {
-		logger.Infof("HTTP API Listening on %s", l.Addr().String())
-	}
-
-	go func() {
-		if err := http.Serve(l, s.mux); err != nil {
-			// temporary fix
-			//logger.Fatal(err)
-		}
-	}()
-
-	go func() {
-		ch := <-s.exit
-		ch <- l.Close()
-	}()
-
-	return nil
-}
-
-func (s *httpServer) Stop() error {
-	ch := make(chan error)
-	s.exit <- ch
-	return <-ch
-}
-
-func (s *httpServer) String() string {
-	return "http"
-}

api/options.go

@@ -1,62 +0,0 @@
-package api
-
-import (
-	"crypto/tls"
-
-	"github.com/asim/go-micro/v3/acme"
-	"github.com/asim/go-micro/v3/api/resolver"
-)
-
-type Options struct {
-	Address      string
-	EnableACME   bool
-	ACMEProvider acme.Provider
-	EnableTLS    bool
-	ACMEHosts    []string
-	TLSConfig    *tls.Config
-	Resolver     resolver.Resolver
-}
-
-type Option func(o *Options)
-
-func Address(a string) Option {
-	return func(o *Options) {
-		o.Address = a
-	}
-}
-
-func EnableACME(b bool) Option {
-	return func(o *Options) {
-		o.EnableACME = b
-	}
-}
-
-func ACMEHosts(hosts ...string) Option {
-	return func(o *Options) {
-		o.ACMEHosts = hosts
-	}
-}
-
-func ACMEProvider(p acme.Provider) Option {
-	return func(o *Options) {
-		o.ACMEProvider = p
-	}
-}
-
-func EnableTLS(b bool) Option {
-	return func(o *Options) {
-		o.EnableTLS = b
-	}
-}
-
-func TLSConfig(t *tls.Config) Option {
-	return func(o *Options) {
-		o.TLSConfig = t
-	}
-}
-
-func Resolver(r resolver.Resolver) Option {
-	return func(o *Options) {
-		o.Resolver = r
-	}
-}

api/resolver/grpc/grpc.go

@@ -6,13 +6,15 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/asim/go-micro/v3/api/resolver"
+	"github.com/unistack-org/micro/v3/api/resolver"
 )
 
+// Resolver struct
 type Resolver struct {
 	opts resolver.Options
 }
 
+// Resolve func to resolve enndpoint
 func (r *Resolver) Resolve(req *http.Request, opts ...resolver.ResolveOption) (*resolver.Endpoint, error) {
 	// parse options
 	options := resolver.NewResolveOptions(opts...)
@@ -39,6 +41,7 @@ func (r *Resolver) String() string {
 	return "grpc"
 }
 
+// NewResolver is used to create new Resolver
 func NewResolver(opts ...resolver.Option) resolver.Resolver {
 	return &Resolver{opts: resolver.NewOptions(opts...)}
 }

api/resolver/host/host.go

@@ -4,14 +4,15 @@ package host
 import (
 	"net/http"
 
-	"github.com/asim/go-micro/v3/api/resolver"
+	"github.com/unistack-org/micro/v3/api/resolver"
 )
 
-type Resolver struct {
+type hostResolver struct {
 	opts resolver.Options
 }
 
-func (r *Resolver) Resolve(req *http.Request, opts ...resolver.ResolveOption) (*resolver.Endpoint, error) {
+// Resolve endpoint
+func (r *hostResolver) Resolve(req *http.Request, opts ...resolver.ResolveOption) (*resolver.Endpoint, error) {
 	// parse options
 	options := resolver.NewResolveOptions(opts...)
 
@@ -24,10 +25,11 @@ func (r *Resolver) Resolve(req *http.Request, opts ...resolver.ResolveOption) (*
 	}, nil
 }
 
-func (r *Resolver) String() string {
+func (r *hostResolver) String() string {
 	return "host"
 }
 
+// NewResolver creates new host api resolver
 func NewResolver(opts ...resolver.Option) resolver.Resolver {
-	return &Resolver{opts: resolver.NewOptions(opts...)}
+	return &hostResolver{opts: resolver.NewOptions(opts...)}
 }

api/resolver/options.go

@@ -1,14 +1,22 @@
 package resolver
 
 import (
-	"github.com/asim/go-micro/v3/registry"
+	"context"
+
+	"github.com/unistack-org/micro/v3/register"
 )
 
+// Options struct
 type Options struct {
-	Handler       string
+	// Context is for external defined options
+	Context context.Context
+	// Handler name
+	Handler string
+	// ServicePrefix is the prefix
 	ServicePrefix string
 }
 
+// Option func
 type Option func(o *Options)
 
 // WithHandler sets the handler being used
@@ -27,7 +35,9 @@ func WithServicePrefix(p string) Option {
 
 // NewOptions returns new initialised options
 func NewOptions(opts ...Option) Options {
-	var options Options
+	options := Options{
+		Context: context.Background(),
+	}
 	for _, o := range opts {
 		o(&options)
 	}
@@ -51,13 +61,10 @@ func Domain(n string) ResolveOption {
 
 // NewResolveOptions returns new initialised resolve options
 func NewResolveOptions(opts ...ResolveOption) ResolveOptions {
-	var options ResolveOptions
+	options := ResolveOptions{Domain: register.DefaultDomain}
 	for _, o := range opts {
 		o(&options)
 	}
-	if len(options.Domain) == 0 {
-		options.Domain = registry.DefaultDomain
-	}
 
 	return options
 }

api/resolver/path/path.go

@@ -5,13 +5,15 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/asim/go-micro/v3/api/resolver"
+	"github.com/unistack-org/micro/v3/api/resolver"
 )
 
+// Resolver the path resolver
 type Resolver struct {
 	opts resolver.Options
 }
 
+// Resolve resolves endpoint
 func (r *Resolver) Resolve(req *http.Request, opts ...resolver.ResolveOption) (*resolver.Endpoint, error) {
 	// parse options
 	options := resolver.NewResolveOptions(opts...)
@@ -31,10 +33,12 @@ func (r *Resolver) Resolve(req *http.Request, opts ...resolver.ResolveOption) (*
 	}, nil
 }
 
+// String retruns the string representation
 func (r *Resolver) String() string {
 	return "path"
 }
 
+// NewResolver returns new path resolver
 func NewResolver(opts ...resolver.Option) resolver.Resolver {
 	return &Resolver{opts: resolver.NewOptions(opts...)}
 }

api/resolver/resolver.go

@@ -7,7 +7,9 @@ import (
 )
 
 var (
-	ErrNotFound    = errors.New("not found")
+	// ErrNotFound returned when endpoint is not found
+	ErrNotFound = errors.New("not found")
+	// ErrInvalidPath returned on invalid path
 	ErrInvalidPath = errors.New("invalid path")
 )
 
@@ -19,7 +21,7 @@ type Resolver interface {
 
 // Endpoint is the endpoint for a http request
 type Endpoint struct {
-	// e.g greeter
+	// Endpoint name e.g greeter
 	Name string
 	// HTTP Host e.g example.com
 	Host string

api/resolver/subdomain/subdomain.go

@@ -0,0 +1,90 @@
+// Package subdomain is a resolver which uses the subdomain to determine the domain to route to. It
+// offloads the endpoint resolution to a child resolver which is provided in New.
+package subdomain
+
+import (
+	"net"
+	"net/http"
+	"strings"
+
+	"github.com/unistack-org/micro/v3/api/resolver"
+	"github.com/unistack-org/micro/v3/logger"
+	"golang.org/x/net/publicsuffix"
+)
+
+// NewResolver creates new subdomain api resolver
+func NewResolver(parent resolver.Resolver, opts ...resolver.Option) resolver.Resolver {
+	options := resolver.NewOptions(opts...)
+	return &subdomainResolver{options, parent}
+}
+
+type subdomainResolver struct {
+	opts resolver.Options
+	resolver.Resolver
+}
+
+// Resolve resolve endpoint based on subdomain
+func (r *subdomainResolver) Resolve(req *http.Request, opts ...resolver.ResolveOption) (*resolver.Endpoint, error) {
+	if dom := r.Domain(req); len(dom) > 0 {
+		opts = append(opts, resolver.Domain(dom))
+	}
+
+	return r.Resolver.Resolve(req, opts...)
+}
+
+// Domain returns domain
+func (r *subdomainResolver) Domain(req *http.Request) string {
+	// determine the host, e.g. foobar.m3o.app
+	host := req.URL.Hostname()
+	if len(host) == 0 {
+		if h, _, err := net.SplitHostPort(req.Host); err == nil {
+			host = h // host does contain a port
+		} else if strings.Contains(err.Error(), "missing port in address") {
+			host = req.Host // host does not contain a port
+		}
+	}
+
+	// check for an ip address
+	if net.ParseIP(host) != nil {
+		return ""
+	}
+
+	// check for dev environment
+	if host == "localhost" || host == "127.0.0.1" {
+		return ""
+	}
+
+	// extract the top level domain plus one (e.g. 'myapp.com')
+	domain, err := publicsuffix.EffectiveTLDPlusOne(host)
+	if err != nil {
+		if logger.V(logger.DebugLevel) {
+			logger.Debug(r.opts.Context, "Unable to extract domain from %v", host)
+		}
+		return ""
+	}
+
+	// there was no subdomain
+	if host == domain {
+		return ""
+	}
+
+	// remove the domain from the host, leaving the subdomain, e.g. "staging.foo.myapp.com" => "staging.foo"
+	subdomain := strings.TrimSuffix(host, "."+domain)
+
+	// ignore the API subdomain
+	if subdomain == "api" {
+		return ""
+	}
+
+	// return the reversed subdomain as the namespace, e.g. "staging.foo" => "foo-staging"
+	comps := strings.Split(subdomain, ".")
+	for i := len(comps)/2 - 1; i >= 0; i-- {
+		opp := len(comps) - 1 - i
+		comps[i], comps[opp] = comps[opp], comps[i]
+	}
+	return strings.Join(comps, "-")
+}
+
+func (r *subdomainResolver) String() string {
+	return "subdomain"
+}

api/resolver/subdomain/subdomain_test.go

@@ -0,0 +1,73 @@
+package subdomain
+
+import (
+	"net/http"
+	"net/url"
+	"testing"
+
+	"github.com/unistack-org/micro/v3/api/resolver/vpath"
+)
+
+func TestResolve(t *testing.T) {
+	tt := []struct {
+		Name   string
+		Host   string
+		Result string
+	}{
+		{
+			Name:   "Top level domain",
+			Host:   "micro.mu",
+			Result: "micro",
+		},
+		{
+			Name:   "Effective top level domain",
+			Host:   "micro.com.au",
+			Result: "micro",
+		},
+		{
+			Name:   "Subdomain dev",
+			Host:   "dev.micro.mu",
+			Result: "dev",
+		},
+		{
+			Name:   "Subdomain foo",
+			Host:   "foo.micro.mu",
+			Result: "foo",
+		},
+		{
+			Name:   "Multi-level subdomain",
+			Host:   "staging.myapp.m3o.app",
+			Result: "myapp-staging",
+		},
+		{
+			Name:   "Dev host",
+			Host:   "127.0.0.1",
+			Result: "micro",
+		},
+		{
+			Name:   "Localhost",
+			Host:   "localhost",
+			Result: "micro",
+		},
+		{
+			Name:   "IP host",
+			Host:   "81.151.101.146",
+			Result: "micro",
+		},
+	}
+
+	for _, tc := range tt {
+		t.Run(tc.Name, func(t *testing.T) {
+			r := NewResolver(vpath.NewResolver())
+			result, err := r.Resolve(&http.Request{URL: &url.URL{Host: tc.Host, Path: "foo/bar"}})
+			if err != nil {
+				t.Fatal(err)
+			}
+			if result != nil {
+				if tc.Result != result.Domain {
+					t.Fatalf("Expected %v but got %v", tc.Result, result.Domain)
+				}
+			}
+		})
+	}
+}

api/resolver/vpath/vpath.go

@@ -0,0 +1,77 @@
+// Package vpath resolves using http path and recognised versioned urls
+package vpath
+
+import (
+	"errors"
+	"net/http"
+	"regexp"
+	"strings"
+
+	"github.com/unistack-org/micro/v3/api/resolver"
+)
+
+// NewResolver creates new vpath api resolver
+func NewResolver(opts ...resolver.Option) resolver.Resolver {
+	return &vpathResolver{opts: resolver.NewOptions(opts...)}
+}
+
+type vpathResolver struct {
+	opts resolver.Options
+}
+
+var (
+	re = regexp.MustCompile("^v[0-9]+$")
+)
+
+// Resolve endpoint
+func (r *vpathResolver) Resolve(req *http.Request, opts ...resolver.ResolveOption) (*resolver.Endpoint, error) {
+	if req.URL.Path == "/" {
+		return nil, errors.New("unknown name")
+	}
+
+	options := resolver.NewResolveOptions(opts...)
+
+	parts := strings.Split(req.URL.Path[1:], "/")
+	if len(parts) == 1 {
+		return &resolver.Endpoint{
+			Name:   r.withPrefix(parts...),
+			Host:   req.Host,
+			Method: req.Method,
+			Path:   req.URL.Path,
+			Domain: options.Domain,
+		}, nil
+	}
+
+	// /v1/foo
+	if re.MatchString(parts[0]) {
+		return &resolver.Endpoint{
+			Name:   r.withPrefix(parts[0:2]...),
+			Host:   req.Host,
+			Method: req.Method,
+			Path:   req.URL.Path,
+			Domain: options.Domain,
+		}, nil
+	}
+
+	return &resolver.Endpoint{
+		Name:   r.withPrefix(parts[0]),
+		Host:   req.Host,
+		Method: req.Method,
+		Path:   req.URL.Path,
+		Domain: options.Domain,
+	}, nil
+}
+
+func (r *vpathResolver) String() string {
+	return "vpath"
+}
+
+// withPrefix transforms "foo" into "go.micro.api.foo"
+func (r *vpathResolver) withPrefix(parts ...string) string {
+	p := r.opts.ServicePrefix
+	if len(p) > 0 {
+		parts = append([]string{p}, parts...)
+	}
+
+	return strings.Join(parts, ".")
+}

api/router/options.go

@@ -1,24 +1,36 @@
 package router
 
 import (
-	"github.com/asim/go-micro/v3/api/resolver"
-	"github.com/asim/go-micro/v3/api/resolver/path"
-	"github.com/asim/go-micro/v3/registry"
-	"github.com/asim/go-micro/v3/registry/mdns"
+	"context"
+
+	"github.com/unistack-org/micro/v3/api/resolver"
+	"github.com/unistack-org/micro/v3/api/resolver/vpath"
+	"github.com/unistack-org/micro/v3/logger"
+	"github.com/unistack-org/micro/v3/register"
 )
 
+// Options holds the options for api router
 type Options struct {
-	Handler  string
-	Registry registry.Registry
+	// Register for service lookup
+	Register register.Register
+	// Resolver to use
 	Resolver resolver.Resolver
+	// Logger micro logger
+	Logger logger.Logger
+	// Context is for external options
+	Context context.Context
+	// Handler name
+	Handler string
 }
 
+// Option func signature
 type Option func(o *Options)
 
+// NewOptions returns options struct filled by opts
 func NewOptions(opts ...Option) Options {
 	options := Options{
-		Handler:  "meta",
-		Registry: mdns.NewRegistry(),
+		Context: context.Background(),
+		Handler: "meta",
 	}
 
 	for _, o := range opts {
@@ -26,7 +38,7 @@ func NewOptions(opts ...Option) Options {
 	}
 
 	if options.Resolver == nil {
-		options.Resolver = path.NewResolver(
+		options.Resolver = vpath.NewResolver(
 			resolver.WithHandler(options.Handler),
 		)
 	}
@@ -34,18 +46,28 @@ func NewOptions(opts ...Option) Options {
 	return options
 }
 
+// WithContext sets the context
+func WithContext(ctx context.Context) Option {
+	return func(o *Options) {
+		o.Context = ctx
+	}
+}
+
+// WithHandler sets the handler
 func WithHandler(h string) Option {
 	return func(o *Options) {
 		o.Handler = h
 	}
 }
 
-func WithRegistry(r registry.Registry) Option {
+// WithRegister sets the register
+func WithRegister(r register.Register) Option {
 	return func(o *Options) {
-		o.Registry = r
+		o.Register = r
 	}
 }
 
+// WithResolver sets the resolver
 func WithResolver(r resolver.Resolver) Option {
 	return func(o *Options) {
 		o.Resolver = r

api/router/registry/registry.go

@@ -1,501 +0,0 @@
-// Package registry provides a dynamic api service router
-package registry
-
-import (
-	"errors"
-	"fmt"
-	"net/http"
-	"regexp"
-	"strings"
-	"sync"
-	"time"
-
-	"github.com/asim/go-micro/v3/api"
-	"github.com/asim/go-micro/v3/api/router"
-	"github.com/asim/go-micro/v3/logger"
-	"github.com/asim/go-micro/v3/metadata"
-	"github.com/asim/go-micro/v3/registry"
-	"github.com/asim/go-micro/v3/registry/cache"
-	util "github.com/asim/go-micro/v3/util/router"
-)
-
-// endpoint struct, that holds compiled pcre
-type endpoint struct {
-	hostregs []*regexp.Regexp
-	pathregs []util.Pattern
-	pcreregs []*regexp.Regexp
-}
-
-// router is the default router
-type registryRouter struct {
-	exit chan bool
-	opts router.Options
-
-	// registry cache
-	rc cache.Cache
-
-	sync.RWMutex
-	eps map[string]*api.Service
-	// compiled regexp for host and path
-	ceps map[string]*endpoint
-}
-
-func (r *registryRouter) isClosed() bool {
-	select {
-	case <-r.exit:
-		return true
-	default:
-		return false
-	}
-}
-
-// refresh list of api services
-func (r *registryRouter) refresh() {
-	var attempts int
-
-	for {
-		services, err := r.opts.Registry.ListServices()
-		if err != nil {
-			attempts++
-			if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-				logger.Errorf("unable to list services: %v", err)
-			}
-			time.Sleep(time.Duration(attempts) * time.Second)
-			continue
-		}
-
-		attempts = 0
-
-		// for each service, get service and store endpoints
-		for _, s := range services {
-			service, err := r.rc.GetService(s.Name)
-			if err != nil {
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-					logger.Errorf("unable to get service: %v", err)
-				}
-				continue
-			}
-			r.store(service)
-		}
-
-		// refresh list in 10 minutes... cruft
-		// use registry watching
-		select {
-		case <-time.After(time.Minute * 10):
-		case <-r.exit:
-			return
-		}
-	}
-}
-
-// process watch event
-func (r *registryRouter) process(res *registry.Result) {
-	// skip these things
-	if res == nil || res.Service == nil {
-		return
-	}
-
-	// get entry from cache
-	service, err := r.rc.GetService(res.Service.Name)
-	if err != nil {
-		if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-			logger.Errorf("unable to get %v service: %v", res.Service.Name, err)
-		}
-		return
-	}
-
-	// update our local endpoints
-	r.store(service)
-}
-
-// store local endpoint cache
-func (r *registryRouter) store(services []*registry.Service) {
-	// endpoints
-	eps := map[string]*api.Service{}
-
-	// services
-	names := map[string]bool{}
-
-	// create a new endpoint mapping
-	for _, service := range services {
-		// set names we need later
-		names[service.Name] = true
-
-		// map per endpoint
-		for _, sep := range service.Endpoints {
-			// create a key service:endpoint_name
-			key := fmt.Sprintf("%s.%s", service.Name, sep.Name)
-			// decode endpoint
-			end := api.Decode(sep.Metadata)
-			// no endpoint or no name
-			if end == nil || len(end.Name) == 0 {
-				continue
-			}
-			// if we got nothing skip
-			if err := api.Validate(end); err != nil {
-				if logger.V(logger.TraceLevel, logger.DefaultLogger) {
-					logger.Tracef("endpoint validation failed: %v", err)
-				}
-				continue
-			}
-
-			// try get endpoint
-			ep, ok := eps[key]
-			if !ok {
-				ep = &api.Service{Name: service.Name}
-			}
-
-			// overwrite the endpoint
-			ep.Endpoint = end
-			// append services
-			ep.Services = append(ep.Services, service)
-			// store it
-			eps[key] = ep
-		}
-	}
-
-	r.Lock()
-	defer r.Unlock()
-
-	// delete any existing eps for services we know
-	for key, service := range r.eps {
-		// skip what we don't care about
-		if !names[service.Name] {
-			continue
-		}
-
-		// ok we know this thing
-		// delete delete delete
-		delete(r.eps, key)
-	}
-
-	// now set the eps we have
-	for name, ep := range eps {
-		r.eps[name] = ep
-		cep := &endpoint{}
-
-		for _, h := range ep.Endpoint.Host {
-			if h == "" || h == "*" {
-				continue
-			}
-			hostreg, err := regexp.CompilePOSIX(h)
-			if err != nil {
-				if logger.V(logger.TraceLevel, logger.DefaultLogger) {
-					logger.Tracef("endpoint have invalid host regexp: %v", err)
-				}
-				continue
-			}
-			cep.hostregs = append(cep.hostregs, hostreg)
-		}
-
-		for _, p := range ep.Endpoint.Path {
-			var pcreok bool
-
-			if p[0] == '^' && p[len(p)-1] == '$' {
-				pcrereg, err := regexp.CompilePOSIX(p)
-				if err == nil {
-					cep.pcreregs = append(cep.pcreregs, pcrereg)
-					pcreok = true
-				}
-			}
-
-			rule, err := util.Parse(p)
-			if err != nil && !pcreok {
-				if logger.V(logger.TraceLevel, logger.DefaultLogger) {
-					logger.Tracef("endpoint have invalid path pattern: %v", err)
-				}
-				continue
-			} else if err != nil && pcreok {
-				continue
-			}
-
-			tpl := rule.Compile()
-			pathreg, err := util.NewPattern(tpl.Version, tpl.OpCodes, tpl.Pool, "")
-			if err != nil {
-				if logger.V(logger.TraceLevel, logger.DefaultLogger) {
-					logger.Tracef("endpoint have invalid path pattern: %v", err)
-				}
-				continue
-			}
-			cep.pathregs = append(cep.pathregs, pathreg)
-		}
-
-		r.ceps[name] = cep
-	}
-}
-
-// watch for endpoint changes
-func (r *registryRouter) watch() {
-	var attempts int
-
-	for {
-		if r.isClosed() {
-			return
-		}
-
-		// watch for changes
-		w, err := r.opts.Registry.Watch()
-		if err != nil {
-			attempts++
-			if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-				logger.Errorf("error watching endpoints: %v", err)
-			}
-			time.Sleep(time.Duration(attempts) * time.Second)
-			continue
-		}
-
-		ch := make(chan bool)
-
-		go func() {
-			select {
-			case <-ch:
-				w.Stop()
-			case <-r.exit:
-				w.Stop()
-			}
-		}()
-
-		// reset if we get here
-		attempts = 0
-
-		for {
-			// process next event
-			res, err := w.Next()
-			if err != nil {
-				if logger.V(logger.ErrorLevel, logger.DefaultLogger) {
-					logger.Errorf("error getting next endpoint: %v", err)
-				}
-				close(ch)
-				break
-			}
-			r.process(res)
-		}
-	}
-}
-
-func (r *registryRouter) Options() router.Options {
-	return r.opts
-}
-
-func (r *registryRouter) Close() error {
-	select {
-	case <-r.exit:
-		return nil
-	default:
-		close(r.exit)
-		r.rc.Stop()
-	}
-	return nil
-}
-
-func (r *registryRouter) Register(ep *api.Endpoint) error {
-	return nil
-}
-
-func (r *registryRouter) Deregister(ep *api.Endpoint) error {
-	return nil
-}
-
-func (r *registryRouter) Endpoint(req *http.Request) (*api.Service, error) {
-	if r.isClosed() {
-		return nil, errors.New("router closed")
-	}
-
-	r.RLock()
-	defer r.RUnlock()
-
-	var idx int
-	if len(req.URL.Path) > 0 && req.URL.Path != "/" {
-		idx = 1
-	}
-	path := strings.Split(req.URL.Path[idx:], "/")
-
-	// use the first match
-	// TODO: weighted matching
-	for n, e := range r.eps {
-		cep, ok := r.ceps[n]
-		if !ok {
-			continue
-		}
-		ep := e.Endpoint
-		var mMatch, hMatch, pMatch bool
-		// 1. try method
-		for _, m := range ep.Method {
-			if m == req.Method {
-				mMatch = true
-				break
-			}
-		}
-		if !mMatch {
-			continue
-		}
-		if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-			logger.Debugf("api method match %s", req.Method)
-		}
-
-		// 2. try host
-		if len(ep.Host) == 0 {
-			hMatch = true
-		} else {
-			for idx, h := range ep.Host {
-				if h == "" || h == "*" {
-					hMatch = true
-					break
-				} else {
-					if cep.hostregs[idx].MatchString(req.URL.Host) {
-						hMatch = true
-						break
-					}
-				}
-			}
-		}
-		if !hMatch {
-			continue
-		}
-		if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-			logger.Debugf("api host match %s", req.URL.Host)
-		}
-
-		// 3. try path via google.api path matching
-		for _, pathreg := range cep.pathregs {
-			matches, err := pathreg.Match(path, "")
-			if err != nil {
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-					logger.Debugf("api gpath not match %s != %v", path, pathreg)
-				}
-				continue
-			}
-			if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-				logger.Debugf("api gpath match %s = %v", path, pathreg)
-			}
-			pMatch = true
-			ctx := req.Context()
-			md, ok := metadata.FromContext(ctx)
-			if !ok {
-				md = make(metadata.Metadata)
-			}
-			for k, v := range matches {
-				md[fmt.Sprintf("x-api-field-%s", k)] = v
-			}
-			md["x-api-body"] = ep.Body
-			*req = *req.Clone(metadata.NewContext(ctx, md))
-			break
-		}
-
-		if !pMatch {
-			// 4. try path via pcre path matching
-			for _, pathreg := range cep.pcreregs {
-				if !pathreg.MatchString(req.URL.Path) {
-					if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-						logger.Debugf("api pcre path not match %s != %v", path, pathreg)
-					}
-					continue
-				}
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-					logger.Debugf("api pcre path match %s != %v", path, pathreg)
-				}
-				pMatch = true
-				break
-			}
-		}
-
-		if !pMatch {
-			continue
-		}
-
-		// TODO: Percentage traffic
-		// we got here, so its a match
-		return e, nil
-	}
-
-	// no match
-	return nil, errors.New("not found")
-}
-
-func (r *registryRouter) Route(req *http.Request) (*api.Service, error) {
-	if r.isClosed() {
-		return nil, errors.New("router closed")
-	}
-
-	// try get an endpoint
-	ep, err := r.Endpoint(req)
-	if err == nil {
-		return ep, nil
-	}
-
-	// error not nil
-	// ignore that shit
-	// TODO: don't ignore that shit
-
-	// get the service name
-	rp, err := r.opts.Resolver.Resolve(req)
-	if err != nil {
-		return nil, err
-	}
-
-	// service name
-	name := rp.Name
-
-	// get service
-	services, err := r.rc.GetService(name, registry.GetDomain(rp.Domain))
-	if err != nil {
-		return nil, err
-	}
-
-	// only use endpoint matching when the meta handler is set aka api.Default
-	switch r.opts.Handler {
-	// rpc handlers
-	case "meta", "api", "rpc":
-		handler := r.opts.Handler
-
-		// set default handler to api
-		if r.opts.Handler == "meta" {
-			handler = "rpc"
-		}
-
-		// construct api service
-		return &api.Service{
-			Name: name,
-			Endpoint: &api.Endpoint{
-				Name:    rp.Method,
-				Handler: handler,
-			},
-			Services: services,
-		}, nil
-	// http handler
-	case "http", "proxy", "web":
-		// construct api service
-		return &api.Service{
-			Name: name,
-			Endpoint: &api.Endpoint{
-				Name:    req.URL.String(),
-				Handler: r.opts.Handler,
-				Host:    []string{req.Host},
-				Method:  []string{req.Method},
-				Path:    []string{req.URL.Path},
-			},
-			Services: services,
-		}, nil
-	}
-
-	return nil, errors.New("unknown handler")
-}
-
-func newRouter(opts ...router.Option) *registryRouter {
-	options := router.NewOptions(opts...)
-	r := &registryRouter{
-		exit: make(chan bool),
-		opts: options,
-		rc:   cache.New(options.Registry),
-		eps:  make(map[string]*api.Service),
-		ceps: make(map[string]*endpoint),
-	}
-	go r.watch()
-	go r.refresh()
-	return r
-}
-
-// NewRouter returns the default router
-func NewRouter(opts ...router.Option) router.Router {
-	return newRouter(opts...)
-}

api/router/registry/registry_test.go

@@ -1,34 +0,0 @@
-package registry
-
-import (
-	"testing"
-
-	"github.com/asim/go-micro/v3/registry"
-	"github.com/stretchr/testify/assert"
-)
-
-func TestStoreRegex(t *testing.T) {
-	router := newRouter()
-	router.store([]*registry.Service{
-		{
-			Name:    "Foobar",
-			Version: "latest",
-			Endpoints: []*registry.Endpoint{
-				{
-					Name: "foo",
-					Metadata: map[string]string{
-						"endpoint":    "FooEndpoint",
-						"description": "Some description",
-						"method":      "POST",
-						"path":        "^/foo/$",
-						"handler":     "rpc",
-					},
-				},
-			},
-			Metadata: map[string]string{},
-		},
-	},
-	)
-
-	assert.Len(t, router.ceps["Foobar.foo"].pcreregs, 1)
-}

api/router/router.go

@@ -4,13 +4,20 @@ package router
 import (
 	"net/http"
 
-	"github.com/asim/go-micro/v3/api"
+	"github.com/unistack-org/micro/v3/api"
+)
+
+var (
+	// DefaultRouter contains default router implementation
+	DefaultRouter Router
 )
 
 // Router is used to determine an endpoint for a request
 type Router interface {
 	// Returns options
 	Options() Options
+	// Init initialize router
+	Init(...Option) error
 	// Stop the router
 	Close() error
 	// Endpoint returns an api.Service endpoint or an error if it does not exist
@@ -21,4 +28,6 @@ type Router interface {
 	Deregister(ep *api.Endpoint) error
 	// Route returns an api.Service route
 	Route(r *http.Request) (*api.Service, error)
+	// String representation of router
+	String() string
 }

api/router/router_test.go

@@ -1,128 +0,0 @@
-package router_test
-
-import (
-	"context"
-	"fmt"
-	"io/ioutil"
-	"log"
-	"net/http"
-	"testing"
-	"time"
-
-	"github.com/asim/go-micro/v3/api/handler"
-	"github.com/asim/go-micro/v3/api/handler/rpc"
-	"github.com/asim/go-micro/v3/api/router"
-	rregistry "github.com/asim/go-micro/v3/api/router/registry"
-	"github.com/asim/go-micro/v3/client"
-	gcli "github.com/asim/go-micro/v3/client/grpc"
-	rmemory "github.com/asim/go-micro/v3/registry/memory"
-	rt "github.com/asim/go-micro/v3/router"
-	regRouter "github.com/asim/go-micro/v3/router/registry"
-	"github.com/asim/go-micro/v3/server"
-	gsrv "github.com/asim/go-micro/v3/server/grpc"
-	pb "github.com/asim/go-micro/v3/server/grpc/proto"
-)
-
-// server is used to implement helloworld.GreeterServer.
-type testServer struct {
-	msgCount int
-}
-
-// TestHello implements helloworld.GreeterServer
-func (s *testServer) Call(ctx context.Context, req *pb.Request, rsp *pb.Response) error {
-	rsp.Msg = "Hello " + req.Uuid
-	return nil
-}
-
-// TestHello implements helloworld.GreeterServer
-func (s *testServer) CallPcre(ctx context.Context, req *pb.Request, rsp *pb.Response) error {
-	rsp.Msg = "Hello " + req.Uuid
-	return nil
-}
-
-// TestHello implements helloworld.GreeterServer
-func (s *testServer) CallPcreInvalid(ctx context.Context, req *pb.Request, rsp *pb.Response) error {
-	rsp.Msg = "Hello " + req.Uuid
-	return nil
-}
-
-func initial(t *testing.T) (server.Server, client.Client) {
-	r := rmemory.NewRegistry()
-
-	// create a new client
-	s := gsrv.NewServer(
-		server.Name("foo"),
-		server.Registry(r),
-	)
-
-	rtr := regRouter.NewRouter(
-		rt.Registry(r),
-	)
-
-	// create a new server
-	c := gcli.NewClient(
-		client.Router(rtr),
-	)
-
-	h := &testServer{}
-	pb.RegisterTestHandler(s, h)
-
-	if err := s.Start(); err != nil {
-		t.Fatalf("failed to start: %v", err)
-	}
-
-	return s, c
-}
-
-func check(t *testing.T, addr string, path string, expected string) {
-	req, err := http.NewRequest("POST", fmt.Sprintf(path, addr), nil)
-	if err != nil {
-		t.Fatalf("Failed to created http.Request: %v", err)
-	}
-	req.Header.Set("Content-Type", "application/json")
-	rsp, err := (&http.Client{}).Do(req)
-	if err != nil {
-		t.Fatalf("Failed to created http.Request: %v", err)
-	}
-	defer rsp.Body.Close()
-
-	buf, err := ioutil.ReadAll(rsp.Body)
-	if err != nil {
-		t.Fatal(err)
-	}
-
-	jsonMsg := expected
-	if string(buf) != jsonMsg {
-		t.Fatalf("invalid message received, parsing error %s != %s", buf, jsonMsg)
-	}
-}
-
-func TestRouterRegistryPcre(t *testing.T) {
-	s, c := initial(t)
-	defer s.Stop()
-
-	router := rregistry.NewRouter(
-		router.WithHandler(rpc.Handler),
-		router.WithRegistry(s.Options().Registry),
-	)
-	hrpc := rpc.NewHandler(
-		handler.WithClient(c),
-		handler.WithRouter(router),
-	)
-	hsrv := &http.Server{
-		Handler:        hrpc,
-		Addr:           "127.0.0.1:6543",
-		WriteTimeout:   15 * time.Second,
-		ReadTimeout:    15 * time.Second,
-		IdleTimeout:    20 * time.Second,
-		MaxHeaderBytes: 1024 * 1024 * 1, // 1Mb
-	}
-
-	go func() {
-		log.Println(hsrv.ListenAndServe())
-	}()
-
-	defer hsrv.Close()
-	time.Sleep(1 * time.Second)
-	check(t, hsrv.Addr, "http://%s/api/v0/test/call/TEST", `{"msg":"Hello TEST"}`)
-}

api/util.go

@@ -1,21 +0,0 @@
-package api
-
-import (
-	"strings"
-)
-
-func strip(s string) string {
-	return strings.TrimSpace(s)
-}
-
-func slice(s string) []string {
-	var sl []string
-
-	for _, p := range strings.Split(s, ",") {
-		if str := strip(p); len(str) > 0 {
-			sl = append(sl, strip(p))
-		}
-	}
-
-	return sl
-}

auth/auth.go

@@ -2,11 +2,16 @@
 package auth
 
 import (
+	"context"
 	"errors"
 	"time"
+
+	"github.com/unistack-org/micro/v3/metadata"
 )
 
 const (
+	// BearerScheme used for Authorization header
+	BearerScheme = "Bearer "
 	// ScopePublic is the scope applied to a rule to allow access to the public
 	ScopePublic = ""
 	// ScopeAccount is the scope applied to a rule to limit to users with any valid account
@@ -14,6 +19,8 @@ const (
 )
 
 var (
+	// DefaultAuth holds default auth implementation
+	DefaultAuth Auth = NewAuth()
 	// ErrInvalidToken is when the token provided is not valid
 	ErrInvalidToken = errors.New("invalid token provided")
 	// ErrForbidden is when a user does not have the necessary scope to access a resource
@@ -23,7 +30,7 @@ var (
 // Auth provides authentication and authorization
 type Auth interface {
 	// Init the auth
-	Init(opts ...Option)
+	Init(opts ...Option) error
 	// Options set for auth
 	Options() Options
 	// Generate a new account
@@ -46,32 +53,30 @@ type Auth interface {
 
 // Account provided by an auth provider
 type Account struct {
-	// ID of the account e.g. UUID. Should not change
+	// Metadata any other associated metadata
+	Metadata metadata.Metadata `json:"metadata"`
+	// ID of the account e.g. email or uuid
 	ID string `json:"id"`
 	// Type of the account, e.g. service
 	Type string `json:"type"`
 	// Issuer of the account
 	Issuer string `json:"issuer"`
-	// Any other associated metadata
-	Metadata map[string]string `json:"metadata"`
-	// Scopes the account has access to
-	Scopes []string `json:"scopes"`
 	// Secret for the account, e.g. the password
 	Secret string `json:"secret"`
-	// Name of the account. User friendly name that might change e.g. a username or email
-	Name string `json:"name"`
+	// Scopes the account has access to
+	Scopes []string `json:"scopes"`
 }
 
 // Token can be short or long lived
 type Token struct {
-	// The token to be used for accessing resources
-	AccessToken string `json:"access_token"`
-	// RefreshToken to be used to generate a new token
-	RefreshToken string `json:"refresh_token"`
 	// Time of token creation
 	Created time.Time `json:"created"`
 	// Time of token expiry
 	Expiry time.Time `json:"expiry"`
+	// The token to be used for accessing resources
+	AccessToken string `json:"access_token"`
+	// RefreshToken to be used to generate a new token
+	RefreshToken string `json:"refresh_token"`
 }
 
 // Expired returns a boolean indicating if the token needs to be refreshed
@@ -101,16 +106,36 @@ const (
 
 // Rule is used to verify access to a resource
 type Rule struct {
-	// ID of the rule, e.g. "public"
-	ID string
-	// Scope the rule requires, a blank scope indicates open to the public and * indicates the rule
-	// applies to any valid account
-	Scope string
-	// Resource the rule applies to
+	// Resource that rule belongs to
 	Resource *Resource
-	// Access determines if the rule grants or denies access to the resource
+	// ID of the rule
+	ID string
+	// Scope of the rule
+	Scope string
+	// Access flag allow/deny
 	Access Access
-	// Priority the rule should take when verifying a request, the higher the value the sooner the
-	// rule will be applied
+	// Priority holds the rule priority
 	Priority int32
 }
+
+type accountKey struct{}
+
+// AccountFromContext gets the account from the context, which
+// is set by the auth wrapper at the start of a call. If the account
+// is not set, a nil account will be returned. The error is only returned
+// when there was a problem retrieving an account
+func AccountFromContext(ctx context.Context) (*Account, bool) {
+	if ctx == nil {
+		return nil, false
+	}
+	acc, ok := ctx.Value(accountKey{}).(*Account)
+	return acc, ok
+}
+
+// ContextWithAccount sets the account in the context
+func ContextWithAccount(ctx context.Context, account *Account) context.Context {
+	if ctx == nil {
+		ctx = context.Background()
+	}
+	return context.WithValue(ctx, accountKey{}, account)
+}

auth/jwt/jwt.go

@@ -1,155 +0,0 @@
-// Package jwt is a jwt implementation of the auth interface
-package jwt
-
-import (
-	"sync"
-	"time"
-
-	"github.com/asim/go-micro/v3/auth"
-	"github.com/asim/go-micro/v3/util/token"
-	"github.com/asim/go-micro/v3/util/token/jwt"
-)
-
-// NewAuth returns a new instance of the Auth service
-func NewAuth(opts ...auth.Option) auth.Auth {
-	j := new(jwtAuth)
-	j.Init(opts...)
-	return j
-}
-
-type jwtAuth struct {
-	options auth.Options
-	token   token.Provider
-	rules   []*auth.Rule
-
-	sync.Mutex
-}
-
-func (j *jwtAuth) String() string {
-	return "jwt"
-}
-
-func (j *jwtAuth) Init(opts ...auth.Option) {
-	j.Lock()
-	defer j.Unlock()
-
-	for _, o := range opts {
-		o(&j.options)
-	}
-
-	j.token = jwt.NewTokenProvider(
-		token.WithPrivateKey(j.options.PrivateKey),
-		token.WithPublicKey(j.options.PublicKey),
-	)
-}
-
-func (j *jwtAuth) Options() auth.Options {
-	j.Lock()
-	defer j.Unlock()
-	return j.options
-}
-
-func (j *jwtAuth) Generate(id string, opts ...auth.GenerateOption) (*auth.Account, error) {
-	options := auth.NewGenerateOptions(opts...)
-	if len(options.Issuer) == 0 {
-		options.Issuer = j.Options().Issuer
-	}
-	name := options.Name
-	if name == "" {
-		name = id
-	}
-	account := &auth.Account{
-		ID:       id,
-		Type:     options.Type,
-		Scopes:   options.Scopes,
-		Metadata: options.Metadata,
-		Issuer:   options.Issuer,
-		Name:     name,
-	}
-
-	// generate a JWT secret which can be provided to the Token() method
-	// and exchanged for an access token
-	secret, err := j.token.Generate(account, token.WithExpiry(time.Hour*24*365))
-	if err != nil {
-		return nil, err
-	}
-	account.Secret = secret.Token
-
-	// return the account
-	return account, nil
-}
-
-func (j *jwtAuth) Grant(rule *auth.Rule) error {
-	j.Lock()
-	defer j.Unlock()
-	j.rules = append(j.rules, rule)
-	return nil
-}
-
-func (j *jwtAuth) Revoke(rule *auth.Rule) error {
-	j.Lock()
-	defer j.Unlock()
-
-	rules := []*auth.Rule{}
-	for _, r := range j.rules {
-		if r.ID != rule.ID {
-			rules = append(rules, r)
-		}
-	}
-
-	j.rules = rules
-	return nil
-}
-
-func (j *jwtAuth) Verify(acc *auth.Account, res *auth.Resource, opts ...auth.VerifyOption) error {
-	j.Lock()
-	defer j.Unlock()
-
-	var options auth.VerifyOptions
-	for _, o := range opts {
-		o(&options)
-	}
-
-	return auth.VerifyAccess(j.rules, acc, res)
-}
-
-func (j *jwtAuth) Rules(opts ...auth.RulesOption) ([]*auth.Rule, error) {
-	j.Lock()
-	defer j.Unlock()
-	return j.rules, nil
-}
-
-func (j *jwtAuth) Inspect(token string) (*auth.Account, error) {
-	return j.token.Inspect(token)
-}
-
-func (j *jwtAuth) Token(opts ...auth.TokenOption) (*auth.Token, error) {
-	options := auth.NewTokenOptions(opts...)
-
-	secret := options.RefreshToken
-	if len(options.Secret) > 0 {
-		secret = options.Secret
-	}
-
-	account, err := j.token.Inspect(secret)
-	if err != nil {
-		return nil, err
-	}
-
-	access, err := j.token.Generate(account, token.WithExpiry(options.Expiry))
-	if err != nil {
-		return nil, err
-	}
-
-	refresh, err := j.token.Generate(account, token.WithExpiry(options.Expiry+time.Hour))
-	if err != nil {
-		return nil, err
-	}
-
-	return &auth.Token{
-		Created:      access.Created,
-		Expiry:       access.Expiry,
-		AccessToken:  access.Token,
-		RefreshToken: refresh.Token,
-	}, nil
-}

auth/noop.go

@@ -0,0 +1,79 @@
+package auth
+
+import (
+	"github.com/google/uuid"
+)
+
+type noopAuth struct {
+	opts Options
+}
+
+// String returns the name of the implementation
+func (n *noopAuth) String() string {
+	return "noop"
+}
+
+// Init the auth
+func (n *noopAuth) Init(opts ...Option) error {
+	for _, o := range opts {
+		o(&n.opts)
+	}
+	return nil
+}
+
+// Options set for auth
+func (n *noopAuth) Options() Options {
+	return n.opts
+}
+
+// Generate a new account
+func (n *noopAuth) Generate(id string, opts ...GenerateOption) (*Account, error) {
+	options := NewGenerateOptions(opts...)
+
+	return &Account{
+		ID:       id,
+		Secret:   options.Secret,
+		Metadata: options.Metadata,
+		Scopes:   options.Scopes,
+		Issuer:   n.Options().Issuer,
+	}, nil
+}
+
+// Grant access to a resource
+func (n *noopAuth) Grant(rule *Rule) error {
+	return nil
+}
+
+// Revoke access to a resource
+func (n *noopAuth) Revoke(rule *Rule) error {
+	return nil
+}
+
+// Rules used to verify requests
+func (n *noopAuth) Rules(opts ...RulesOption) ([]*Rule, error) {
+	return []*Rule{}, nil
+}
+
+// Verify an account has access to a resource
+func (n *noopAuth) Verify(acc *Account, res *Resource, opts ...VerifyOption) error {
+	return nil
+}
+
+// Inspect a token
+func (n *noopAuth) Inspect(token string) (*Account, error) {
+	uid, err := uuid.NewRandom()
+	if err != nil {
+		return nil, err
+	}
+	return &Account{ID: uid.String(), Issuer: n.Options().Issuer}, nil
+}
+
+// Token generation using an account id and secret
+func (n *noopAuth) Token(opts ...TokenOption) (*Token, error) {
+	return &Token{}, nil
+}
+
+// NewAuth returns new noop auth
+func NewAuth(opts ...Option) Auth {
+	return &noopAuth{opts: NewOptions(opts...)}
+}

auth/noop/noop.go

@@ -1,85 +0,0 @@
-package noop
-
-import (
-	"github.com/asim/go-micro/v3/auth"
-	"github.com/google/uuid"
-)
-
-func NewAuth(opts ...auth.Option) auth.Auth {
-	var options auth.Options
-	for _, o := range opts {
-		o(&options)
-	}
-
-	return &noop{
-		opts: options,
-	}
-}
-
-type noop struct {
-	opts auth.Options
-}
-
-// String returns the name of the implementation
-func (n *noop) String() string {
-	return "noop"
-}
-
-// Init the auth
-func (n *noop) Init(opts ...auth.Option) {
-	for _, o := range opts {
-		o(&n.opts)
-	}
-}
-
-// Options set for auth
-func (n *noop) Options() auth.Options {
-	return n.opts
-}
-
-// Generate a new account
-func (n *noop) Generate(id string, opts ...auth.GenerateOption) (*auth.Account, error) {
-	options := auth.NewGenerateOptions(opts...)
-	name := options.Name
-	if name == "" {
-		name = id
-	}
-	return &auth.Account{
-		ID:       id,
-		Secret:   options.Secret,
-		Metadata: options.Metadata,
-		Scopes:   options.Scopes,
-		Issuer:   n.Options().Issuer,
-		Name:     name,
-	}, nil
-}
-
-// Grant access to a resource
-func (n *noop) Grant(rule *auth.Rule) error {
-	return nil
-}
-
-// Revoke access to a resource
-func (n *noop) Revoke(rule *auth.Rule) error {
-	return nil
-}
-
-// Rules used to verify requests
-func (n *noop) Rules(opts ...auth.RulesOption) ([]*auth.Rule, error) {
-	return []*auth.Rule{}, nil
-}
-
-// Verify an account has access to a resource
-func (n *noop) Verify(acc *auth.Account, res *auth.Resource, opts ...auth.VerifyOption) error {
-	return nil
-}
-
-// Inspect a token
-func (n *noop) Inspect(token string) (*auth.Account, error) {
-	return &auth.Account{ID: uuid.New().String(), Issuer: n.Options().Issuer}, nil
-}
-
-// Token generation using an account id and secret
-func (n *noop) Token(opts ...auth.TokenOption) (*auth.Token, error) {
-	return &auth.Token{}, nil
-}

auth/options.go

@@ -4,40 +4,59 @@ import (
 	"context"
 	"time"
 
-	"github.com/asim/go-micro/v3/store"
+	"github.com/unistack-org/micro/v3/logger"
+	"github.com/unistack-org/micro/v3/metadata"
+	"github.com/unistack-org/micro/v3/meter"
+	"github.com/unistack-org/micro/v3/store"
+	"github.com/unistack-org/micro/v3/tracer"
 )
 
+// NewOptions creates Options struct from slice of options
 func NewOptions(opts ...Option) Options {
-	var options Options
+	options := Options{
+		Tracer: tracer.DefaultTracer,
+		Logger: logger.DefaultLogger,
+		Meter:  meter.DefaultMeter,
+	}
 	for _, o := range opts {
 		o(&options)
 	}
 	return options
 }
 
+// Options struct holds auth options
 type Options struct {
-	// Issuer of the service's account
-	Issuer string
-	// ID is the services auth ID
-	ID string
-	// Secret is used to authenticate the service
-	Secret string
+	// Context holds the external options
+	Context context.Context
+	// Meter used for metrics
+	Meter meter.Meter
+	// Logger used for logging
+	Logger logger.Logger
+	// Tracer used for tracing
+	Tracer tracer.Tracer
+	// Store used for stre data
+	Store store.Store
 	// Token is the services token used to authenticate itself
 	Token *Token
-	// PublicKey for decoding JWTs
-	PublicKey string
-	// PrivateKey for encoding JWTs
-	PrivateKey string
 	// LoginURL is the relative url path where a user can login
 	LoginURL string
-	// Store to back auth
-	Store store.Store
+	// PrivateKey for encoding JWTs
+	PrivateKey string
+	// PublicKey for decoding JWTs
+	PublicKey string
+	// Secret is used to authenticate the service
+	Secret string
+	// ID is the services auth ID
+	ID string
+	// Issuer of the service's account
+	Issuer string
+	// Name holds the auth name
+	Name string
 	// Addrs sets the addresses of auth
 	Addrs []string
-	// Context to store other options
-	Context context.Context
 }
 
+// Option func
 type Option func(o *Options)
 
 // Addrs is the auth addresses to use
@@ -47,6 +66,13 @@ func Addrs(addrs ...string) Option {
 	}
 }
 
+// Name sets the name
+func Name(n string) Option {
+	return func(o *Options) {
+		o.Name = n
+	}
+}
+
 // Issuer of the services account
 func Issuer(i string) Option {
 	return func(o *Options) {
@@ -97,23 +123,17 @@ func LoginURL(url string) Option {
 	}
 }
 
+// GenerateOptions struct
 type GenerateOptions struct {
-	// Metadata associated with the account
-	Metadata map[string]string
-	// Scopes the account has access too
-	Scopes []string
-	// Provider of the account, e.g. oauth
+	Metadata metadata.Metadata
 	Provider string
-	// Type of the account, e.g. user
-	Type string
-	// Secret used to authenticate the account
-	Secret string
-	// Issuer of the account, e.g. micro
-	Issuer string
-	// Name of the acouunt e.g. an email or username
-	Name string
+	Type     string
+	Secret   string
+	Issuer   string
+	Scopes   []string
 }
 
+// GenerateOption func
 type GenerateOption func(o *GenerateOptions)
 
 // WithSecret for the generated account
@@ -131,9 +151,9 @@ func WithType(t string) GenerateOption {
 }
 
 // WithMetadata for the generated account
-func WithMetadata(md map[string]string) GenerateOption {
+func WithMetadata(md metadata.Metadata) GenerateOption {
 	return func(o *GenerateOptions) {
-		o.Metadata = md
+		o.Metadata = metadata.Copy(md)
 	}
 }
 
@@ -158,13 +178,6 @@ func WithIssuer(i string) GenerateOption {
 	}
 }
 
-// WithName for the generated account
-func WithName(n string) GenerateOption {
-	return func(o *GenerateOptions) {
-		o.Name = n
-	}
-}
-
 // NewGenerateOptions from a slice of options
 func NewGenerateOptions(opts ...GenerateOption) GenerateOptions {
 	var options GenerateOptions
@@ -174,19 +187,16 @@ func NewGenerateOptions(opts ...GenerateOption) GenerateOptions {
 	return options
 }
 
+// TokenOptions struct
 type TokenOptions struct {
-	// ID for the account
-	ID string
-	// Secret for the account
-	Secret string
-	// RefreshToken is used to refesh a token
+	ID           string
+	Secret       string
 	RefreshToken string
-	// Expiry is the time the token should live for
-	Expiry time.Duration
-	// Issuer of the account
-	Issuer string
+	Issuer       string
+	Expiry       time.Duration
 }
 
+// TokenOption func
 type TokenOption func(o *TokenOptions)
 
 // WithExpiry for the token
@@ -196,6 +206,7 @@ func WithExpiry(ex time.Duration) TokenOption {
 	}
 }
 
+// WithCredentials sets tye id and secret
 func WithCredentials(id, secret string) TokenOption {
 	return func(o *TokenOptions) {
 		o.ID = id
@@ -203,12 +214,14 @@ func WithCredentials(id, secret string) TokenOption {
 	}
 }
 
+// WithToken sets the refresh token
 func WithToken(rt string) TokenOption {
 	return func(o *TokenOptions) {
 		o.RefreshToken = rt
 	}
 }
 
+// WithTokenIssuer sets the token issuer option
 func WithTokenIssuer(iss string) TokenOption {
 	return func(o *TokenOptions) {
 		o.Issuer = iss
@@ -222,7 +235,7 @@ func NewTokenOptions(opts ...TokenOption) TokenOptions {
 		o(&options)
 	}
 
-	// set defualt expiry of token
+	// set default expiry of token
 	if options.Expiry == 0 {
 		options.Expiry = time.Minute
 	}
@@ -230,39 +243,69 @@ func NewTokenOptions(opts ...TokenOption) TokenOptions {
 	return options
 }
 
+// VerifyOptions struct
 type VerifyOptions struct {
 	Context   context.Context
 	Namespace string
 }
 
+// VerifyOption func
 type VerifyOption func(o *VerifyOptions)
 
+// VerifyContext pass context to verify
 func VerifyContext(ctx context.Context) VerifyOption {
 	return func(o *VerifyOptions) {
 		o.Context = ctx
 	}
 }
+
+// VerifyNamespace sets thhe namespace for verify
 func VerifyNamespace(ns string) VerifyOption {
 	return func(o *VerifyOptions) {
 		o.Namespace = ns
 	}
 }
 
+// RulesOptions struct
 type RulesOptions struct {
 	Context   context.Context
 	Namespace string
 }
 
+// RulesOption func
 type RulesOption func(o *RulesOptions)
 
+// RulesContext pass rules context
 func RulesContext(ctx context.Context) RulesOption {
 	return func(o *RulesOptions) {
 		o.Context = ctx
 	}
 }
 
+// RulesNamespace sets the rule namespace
 func RulesNamespace(ns string) RulesOption {
 	return func(o *RulesOptions) {
 		o.Namespace = ns
 	}
 }
+
+// Logger sets the logger
+func Logger(l logger.Logger) Option {
+	return func(o *Options) {
+		o.Logger = l
+	}
+}
+
+// Meter sets the meter
+func Meter(m meter.Meter) Option {
+	return func(o *Options) {
+		o.Meter = m
+	}
+}
+
+// Tracer sets the meter
+func Tracer(t tracer.Tracer) Option {
+	return func(o *Options) {
+		o.Tracer = t
+	}
+}

auth/rules.go

@@ -9,6 +9,7 @@ import (
 // VerifyAccess an account has access to a resource using the rules provided. If the account does not have
 // access an error will be returned. If there are no rules provided which match the resource, an error
 // will be returned
+//nolint:gocyclo
 func VerifyAccess(rules []*Rule, acc *Account, res *Resource) error {
 	// the rule is only to be applied if the type matches the resource or is catch-all (*)
 	validTypes := []string{"*", res.Type}
@@ -83,7 +84,7 @@ func VerifyAccess(rules []*Rule, acc *Account, res *Resource) error {
 // not case sensitive.
 func include(slice []string, val string) bool {
 	for _, s := range slice {
-		if strings.ToLower(s) == strings.ToLower(val) {
+		if strings.EqualFold(s, val) {
 			return true
 		}
 	}

auth/rules_test.go

@@ -42,7 +42,7 @@ func TestVerify(t *testing.T) {
 			Account:  &Account{},
 			Resource: srvResource,
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope:    "",
 					Resource: catchallResource,
 				},
@@ -52,7 +52,7 @@ func TestVerify(t *testing.T) {
 			Name:     "CatchallPublicNoAccount",
 			Resource: srvResource,
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope:    "",
 					Resource: catchallResource,
 				},
@@ -63,7 +63,7 @@ func TestVerify(t *testing.T) {
 			Account:  &Account{},
 			Resource: srvResource,
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope:    "*",
 					Resource: catchallResource,
 				},
@@ -73,7 +73,7 @@ func TestVerify(t *testing.T) {
 			Name:     "CatchallPrivateNoAccount",
 			Resource: srvResource,
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope:    "*",
 					Resource: catchallResource,
 				},
@@ -85,7 +85,7 @@ func TestVerify(t *testing.T) {
 			Resource: srvResource,
 			Account:  &Account{},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope: "*",
 					Resource: &Resource{
 						Type:     srvResource.Type,
@@ -100,7 +100,7 @@ func TestVerify(t *testing.T) {
 			Resource: srvResource,
 			Account:  &Account{},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope: "*",
 					Resource: &Resource{
 						Type:     srvResource.Type,
@@ -118,7 +118,7 @@ func TestVerify(t *testing.T) {
 				Scopes: []string{"neededscope"},
 			},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope:    "neededscope",
 					Resource: srvResource,
 				},
@@ -131,7 +131,7 @@ func TestVerify(t *testing.T) {
 				Scopes: []string{"neededscope"},
 			},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope:    "invalidscope",
 					Resource: srvResource,
 				},
@@ -143,7 +143,7 @@ func TestVerify(t *testing.T) {
 			Resource: srvResource,
 			Account:  &Account{},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope:    "*",
 					Resource: catchallResource,
 					Access:   AccessDenied,
@@ -156,7 +156,7 @@ func TestVerify(t *testing.T) {
 			Resource: srvResource,
 			Account:  &Account{},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope:    "*",
 					Resource: catchallResource,
 					Access:   AccessDenied,
@@ -169,13 +169,13 @@ func TestVerify(t *testing.T) {
 			Resource: srvResource,
 			Account:  &Account{},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope:    "*",
 					Resource: catchallResource,
 					Access:   AccessGranted,
 					Priority: 1,
 				},
-				&Rule{
+				{
 					Scope:    "*",
 					Resource: catchallResource,
 					Access:   AccessDenied,
@@ -188,13 +188,13 @@ func TestVerify(t *testing.T) {
 			Resource: srvResource,
 			Account:  &Account{},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope:    "*",
 					Resource: catchallResource,
 					Access:   AccessGranted,
 					Priority: 0,
 				},
-				&Rule{
+				{
 					Scope:    "*",
 					Resource: catchallResource,
 					Access:   AccessDenied,
@@ -208,7 +208,7 @@ func TestVerify(t *testing.T) {
 			Resource: webResource,
 			Account:  &Account{},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope:    "*",
 					Resource: webResource,
 				},
@@ -219,7 +219,7 @@ func TestVerify(t *testing.T) {
 			Resource: webResource,
 			Account:  &Account{},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope: "*",
 					Resource: &Resource{
 						Type:     webResource.Type,
@@ -235,7 +235,7 @@ func TestVerify(t *testing.T) {
 			Resource: webResource,
 			Account:  &Account{},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope: "*",
 					Resource: &Resource{
 						Type:     webResource.Type,
@@ -250,7 +250,7 @@ func TestVerify(t *testing.T) {
 			Resource: webResource,
 			Account:  &Account{},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope: "*",
 					Resource: &Resource{
 						Type:     webResource.Type,
@@ -265,7 +265,7 @@ func TestVerify(t *testing.T) {
 			Resource: webResource,
 			Account:  &Account{},
 			Rules: []*Rule{
-				&Rule{
+				{
 					Scope: "*",
 					Resource: &Resource{
 						Type:     webResource.Type,

broker/broker.go

@@ -1,31 +1,50 @@
 // Package broker is an interface used for asynchronous messaging
 package broker
 
+import (
+	"context"
+
+	"github.com/unistack-org/micro/v3/metadata"
+)
+
+var (
+	// DefaultBroker default broker
+	DefaultBroker Broker = NewBroker()
+)
+
 // Broker is an interface used for asynchronous messaging.
 type Broker interface {
+	Name() string
 	Init(...Option) error
 	Options() Options
 	Address() string
-	Connect() error
-	Disconnect() error
-	Publish(topic string, m *Message, opts ...PublishOption) error
-	Subscribe(topic string, h Handler, opts ...SubscribeOption) (Subscriber, error)
+	Connect(context.Context) error
+	Disconnect(context.Context) error
+	Publish(context.Context, string, *Message, ...PublishOption) error
+	Subscribe(context.Context, string, Handler, ...SubscribeOption) (Subscriber, error)
 	String() string
 }
 
 // Handler is used to process messages via a subscription of a topic.
-type Handler func(*Message) error
+type Handler func(Event) error
 
-type ErrorHandler func(*Message, error)
+// Event is given to a subscription handler for processing
+type Event interface {
+	Topic() string
+	Message() *Message
+	Ack() error
+	Error() error
+}
 
+// Message is used to transfer data
 type Message struct {
-	Header map[string]string
-	Body   []byte
+	Header metadata.Metadata // contains message metadata
+	Body   []byte            // contains message body
 }
 
 // Subscriber is a convenience return type for the Subscribe method
 type Subscriber interface {
 	Options() SubscribeOptions
 	Topic() string
-	Unsubscribe() error
+	Unsubscribe(context.Context) error
 }

broker/context.go

@@ -0,0 +1,54 @@
+package broker
+
+import (
+	"context"
+)
+
+type brokerKey struct{}
+
+// FromContext returns broker from passed context
+func FromContext(ctx context.Context) (Broker, bool) {
+	if ctx == nil {
+		return nil, false
+	}
+	c, ok := ctx.Value(brokerKey{}).(Broker)
+	return c, ok
+}
+
+// NewContext savess broker in context
+func NewContext(ctx context.Context, s Broker) context.Context {
+	if ctx == nil {
+		ctx = context.Background()
+	}
+	return context.WithValue(ctx, brokerKey{}, s)
+}
+
+// SetSubscribeOption returns a function to setup a context with given value
+func SetSubscribeOption(k, v interface{}) SubscribeOption {
+	return func(o *SubscribeOptions) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+		o.Context = context.WithValue(o.Context, k, v)
+	}
+}
+
+// SetOption returns a function to setup a context with given value
+func SetOption(k, v interface{}) Option {
+	return func(o *Options) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+		o.Context = context.WithValue(o.Context, k, v)
+	}
+}
+
+// SetPublishOption returns a function to setup a context with given value
+func SetPublishOption(k, v interface{}) PublishOption {
+	return func(o *PublishOptions) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+		o.Context = context.WithValue(o.Context, k, v)
+	}
+}

broker/http/http.go

@@ -1,689 +0,0 @@
-// Package http provides a http based message broker
-package http
-
-import (
-	"bytes"
-	"context"
-	"crypto/tls"
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"math/rand"
-	"net"
-	"net/http"
-	"net/url"
-	"runtime"
-	"sync"
-	"time"
-
-	"github.com/asim/go-micro/v3/broker"
-	"github.com/asim/go-micro/v3/codec/json"
-	merr "github.com/asim/go-micro/v3/errors"
-	"github.com/asim/go-micro/v3/registry"
-	"github.com/asim/go-micro/v3/registry/cache"
-	"github.com/asim/go-micro/v3/registry/mdns"
-	maddr "github.com/asim/go-micro/v3/util/addr"
-	mnet "github.com/asim/go-micro/v3/util/net"
-	mls "github.com/asim/go-micro/v3/util/tls"
-	"github.com/google/uuid"
-	"golang.org/x/net/http2"
-)
-
-// HTTP Broker is a point to point async broker
-type httpBroker struct {
-	id      string
-	address string
-	opts    broker.Options
-
-	mux *http.ServeMux
-
-	c *http.Client
-	r registry.Registry
-
-	sync.RWMutex
-	subscribers map[string][]*httpSubscriber
-	running     bool
-	exit        chan chan error
-
-	// offline message inbox
-	mtx   sync.RWMutex
-	inbox map[string][][]byte
-}
-
-type httpSubscriber struct {
-	opts  broker.SubscribeOptions
-	id    string
-	topic string
-	fn    broker.Handler
-	svc   *registry.Service
-	hb    *httpBroker
-}
-
-var (
-	DefaultPath      = "/"
-	DefaultAddress   = "127.0.0.1:0"
-	serviceName      = "micro.http.broker"
-	broadcastVersion = "ff.http.broadcast"
-	registerTTL      = time.Minute
-	registerInterval = time.Second * 30
-)
-
-func init() {
-	rand.Seed(time.Now().Unix())
-}
-
-func newTransport(config *tls.Config) *http.Transport {
-	if config == nil {
-		config = &tls.Config{
-			InsecureSkipVerify: true,
-		}
-	}
-
-	dialTLS := func(network string, addr string) (net.Conn, error) {
-		return tls.Dial(network, addr, config)
-	}
-
-	t := &http.Transport{
-		Proxy: http.ProxyFromEnvironment,
-		Dial: (&net.Dialer{
-			Timeout:   30 * time.Second,
-			KeepAlive: 30 * time.Second,
-		}).Dial,
-		TLSHandshakeTimeout: 10 * time.Second,
-		DialTLS:             dialTLS,
-	}
-	runtime.SetFinalizer(&t, func(tr **http.Transport) {
-		(*tr).CloseIdleConnections()
-	})
-
-	// setup http2
-	http2.ConfigureTransport(t)
-
-	return t
-}
-
-func newHttpBroker(opts ...broker.Option) broker.Broker {
-	options := broker.Options{
-		Codec:    json.Marshaler{},
-		Context:  context.TODO(),
-		Registry: mdns.NewRegistry(),
-	}
-
-	for _, o := range opts {
-		o(&options)
-	}
-
-	// set address
-	addr := DefaultAddress
-
-	if len(options.Addrs) > 0 && len(options.Addrs[0]) > 0 {
-		addr = options.Addrs[0]
-	}
-
-	h := &httpBroker{
-		id:          uuid.New().String(),
-		address:     addr,
-		opts:        options,
-		r:           options.Registry,
-		c:           &http.Client{Transport: newTransport(options.TLSConfig)},
-		subscribers: make(map[string][]*httpSubscriber),
-		exit:        make(chan chan error),
-		mux:         http.NewServeMux(),
-		inbox:       make(map[string][][]byte),
-	}
-
-	// specify the message handler
-	h.mux.Handle(DefaultPath, h)
-
-	// get optional handlers
-	if h.opts.Context != nil {
-		handlers, ok := h.opts.Context.Value("http_handlers").(map[string]http.Handler)
-		if ok {
-			for pattern, handler := range handlers {
-				h.mux.Handle(pattern, handler)
-			}
-		}
-	}
-
-	return h
-}
-
-func (h *httpSubscriber) Options() broker.SubscribeOptions {
-	return h.opts
-}
-
-func (h *httpSubscriber) Topic() string {
-	return h.topic
-}
-
-func (h *httpSubscriber) Unsubscribe() error {
-	return h.hb.unsubscribe(h)
-}
-
-func (h *httpBroker) saveMessage(topic string, msg []byte) {
-	h.mtx.Lock()
-	defer h.mtx.Unlock()
-
-	// get messages
-	c := h.inbox[topic]
-
-	// save message
-	c = append(c, msg)
-
-	// max length 64
-	if len(c) > 64 {
-		c = c[:64]
-	}
-
-	// save inbox
-	h.inbox[topic] = c
-}
-
-func (h *httpBroker) getMessage(topic string, num int) [][]byte {
-	h.mtx.Lock()
-	defer h.mtx.Unlock()
-
-	// get messages
-	c, ok := h.inbox[topic]
-	if !ok {
-		return nil
-	}
-
-	// more message than requests
-	if len(c) >= num {
-		msg := c[:num]
-		h.inbox[topic] = c[num:]
-		return msg
-	}
-
-	// reset inbox
-	h.inbox[topic] = nil
-
-	// return all messages
-	return c
-}
-
-func (h *httpBroker) subscribe(s *httpSubscriber) error {
-	h.Lock()
-	defer h.Unlock()
-
-	if err := h.r.Register(s.svc, registry.RegisterTTL(registerTTL)); err != nil {
-		return err
-	}
-
-	h.subscribers[s.topic] = append(h.subscribers[s.topic], s)
-	return nil
-}
-
-func (h *httpBroker) unsubscribe(s *httpSubscriber) error {
-	h.Lock()
-	defer h.Unlock()
-
-	//nolint:prealloc
-	var subscribers []*httpSubscriber
-
-	// look for subscriber
-	for _, sub := range h.subscribers[s.topic] {
-		// deregister and skip forward
-		if sub == s {
-			_ = h.r.Deregister(sub.svc)
-			continue
-		}
-		// keep subscriber
-		subscribers = append(subscribers, sub)
-	}
-
-	// set subscribers
-	h.subscribers[s.topic] = subscribers
-
-	return nil
-}
-
-func (h *httpBroker) run(l net.Listener) {
-	t := time.NewTicker(registerInterval)
-	defer t.Stop()
-
-	for {
-		select {
-		// heartbeat for each subscriber
-		case <-t.C:
-			h.RLock()
-			for _, subs := range h.subscribers {
-				for _, sub := range subs {
-					_ = h.r.Register(sub.svc, registry.RegisterTTL(registerTTL))
-				}
-			}
-			h.RUnlock()
-		// received exit signal
-		case ch := <-h.exit:
-			ch <- l.Close()
-			h.RLock()
-			for _, subs := range h.subscribers {
-				for _, sub := range subs {
-					_ = h.r.Deregister(sub.svc)
-				}
-			}
-			h.RUnlock()
-			return
-		}
-	}
-}
-
-func (h *httpBroker) ServeHTTP(w http.ResponseWriter, req *http.Request) {
-	if req.Method != "POST" {
-		err := merr.BadRequest("go.micro.broker", "Method not allowed")
-		http.Error(w, err.Error(), http.StatusMethodNotAllowed)
-		return
-	}
-	defer req.Body.Close()
-
-	req.ParseForm()
-
-	b, err := ioutil.ReadAll(req.Body)
-	if err != nil {
-		errr := merr.InternalServerError("go.micro.broker", "Error reading request body: %v", err)
-		w.WriteHeader(http.StatusInternalServerError)
-		w.Write([]byte(errr.Error()))
-		return
-	}
-
-	var msg *broker.Message
-	if err = h.opts.Codec.Unmarshal(b, &msg); err != nil {
-		errr := merr.InternalServerError("go.micro.broker", "Error parsing request body: %v", err)
-		w.WriteHeader(http.StatusInternalServerError)
-		w.Write([]byte(errr.Error()))
-		return
-	}
-
-	topic := msg.Header["Micro-Topic"]
-
-	if len(topic) == 0 {
-		errr := merr.InternalServerError("go.micro.broker", "Topic not found")
-		w.WriteHeader(http.StatusInternalServerError)
-		w.Write([]byte(errr.Error()))
-		return
-	}
-
-	id := req.Form.Get("id")
-
-	//nolint:prealloc
-	var subs []broker.Handler
-
-	h.RLock()
-	for _, subscriber := range h.subscribers[topic] {
-		if id != subscriber.id {
-			continue
-		}
-		subs = append(subs, subscriber.fn)
-	}
-	h.RUnlock()
-
-	// execute the handler
-	for _, fn := range subs {
-		fn(msg)
-	}
-}
-
-func (h *httpBroker) Address() string {
-	h.RLock()
-	defer h.RUnlock()
-	return h.address
-}
-
-func (h *httpBroker) Connect() error {
-	h.RLock()
-	if h.running {
-		h.RUnlock()
-		return nil
-	}
-	h.RUnlock()
-
-	h.Lock()
-	defer h.Unlock()
-
-	var l net.Listener
-	var err error
-
-	if h.opts.Secure || h.opts.TLSConfig != nil {
-		config := h.opts.TLSConfig
-
-		fn := func(addr string) (net.Listener, error) {
-			if config == nil {
-				hosts := []string{addr}
-
-				// check if its a valid host:port
-				if host, _, err := net.SplitHostPort(addr); err == nil {
-					if len(host) == 0 {
-						hosts = maddr.IPs()
-					} else {
-						hosts = []string{host}
-					}
-				}
-
-				// generate a certificate
-				cert, err := mls.Certificate(hosts...)
-				if err != nil {
-					return nil, err
-				}
-				config = &tls.Config{Certificates: []tls.Certificate{cert}}
-			}
-			return tls.Listen("tcp", addr, config)
-		}
-
-		l, err = mnet.Listen(h.address, fn)
-	} else {
-		fn := func(addr string) (net.Listener, error) {
-			return net.Listen("tcp", addr)
-		}
-
-		l, err = mnet.Listen(h.address, fn)
-	}
-
-	if err != nil {
-		return err
-	}
-
-	addr := h.address
-	h.address = l.Addr().String()
-
-	go http.Serve(l, h.mux)
-	go func() {
-		h.run(l)
-		h.Lock()
-		h.opts.Addrs = []string{addr}
-		h.address = addr
-		h.Unlock()
-	}()
-
-	// get registry
-	reg := h.opts.Registry
-	if reg == nil {
-		reg = mdns.NewRegistry()
-	}
-	// set cache
-	h.r = cache.New(reg)
-
-	// set running
-	h.running = true
-	return nil
-}
-
-func (h *httpBroker) Disconnect() error {
-	h.RLock()
-	if !h.running {
-		h.RUnlock()
-		return nil
-	}
-	h.RUnlock()
-
-	h.Lock()
-	defer h.Unlock()
-
-	// stop cache
-	rc, ok := h.r.(cache.Cache)
-	if ok {
-		rc.Stop()
-	}
-
-	// exit and return err
-	ch := make(chan error)
-	h.exit <- ch
-	err := <-ch
-
-	// set not running
-	h.running = false
-	return err
-}
-
-func (h *httpBroker) Init(opts ...broker.Option) error {
-	h.RLock()
-	if h.running {
-		h.RUnlock()
-		return errors.New("cannot init while connected")
-	}
-	h.RUnlock()
-
-	h.Lock()
-	defer h.Unlock()
-
-	for _, o := range opts {
-		o(&h.opts)
-	}
-
-	if len(h.opts.Addrs) > 0 && len(h.opts.Addrs[0]) > 0 {
-		h.address = h.opts.Addrs[0]
-	}
-
-	if len(h.id) == 0 {
-		h.id = "go.micro.http.broker-" + uuid.New().String()
-	}
-
-	// get registry
-	reg := h.opts.Registry
-	if reg == nil {
-		reg = mdns.NewRegistry()
-	}
-
-	// get cache
-	if rc, ok := h.r.(cache.Cache); ok {
-		rc.Stop()
-	}
-
-	// set registry
-	h.r = cache.New(reg)
-
-	// reconfigure tls config
-	if c := h.opts.TLSConfig; c != nil {
-		h.c = &http.Client{
-			Transport: newTransport(c),
-		}
-	}
-
-	return nil
-}
-
-func (h *httpBroker) Options() broker.Options {
-	return h.opts
-}
-
-func (h *httpBroker) Publish(topic string, msg *broker.Message, opts ...broker.PublishOption) error {
-	// create the message first
-	m := &broker.Message{
-		Header: make(map[string]string),
-		Body:   msg.Body,
-	}
-
-	for k, v := range msg.Header {
-		m.Header[k] = v
-	}
-
-	m.Header["Micro-Topic"] = topic
-
-	// encode the message
-	b, err := h.opts.Codec.Marshal(m)
-	if err != nil {
-		return err
-	}
-
-	// save the message
-	h.saveMessage(topic, b)
-
-	// now attempt to get the service
-	h.RLock()
-	s, err := h.r.GetService(serviceName)
-	if err != nil {
-		h.RUnlock()
-		return err
-	}
-	h.RUnlock()
-
-	pub := func(node *registry.Node, t string, b []byte) error {
-		scheme := "http"
-
-		// check if secure is added in metadata
-		if node.Metadata["secure"] == "true" {
-			scheme = "https"
-		}
-
-		vals := url.Values{}
-		vals.Add("id", node.Id)
-
-		uri := fmt.Sprintf("%s://%s%s?%s", scheme, node.Address, DefaultPath, vals.Encode())
-		r, err := h.c.Post(uri, "application/json", bytes.NewReader(b))
-		if err != nil {
-			return err
-		}
-
-		// discard response body
-		io.Copy(ioutil.Discard, r.Body)
-		r.Body.Close()
-		return nil
-	}
-
-	srv := func(s []*registry.Service, b []byte) {
-		for _, service := range s {
-			var nodes []*registry.Node
-
-			for _, node := range service.Nodes {
-				// only use nodes tagged with broker http
-				if node.Metadata["broker"] != "http" {
-					continue
-				}
-
-				// look for nodes for the topic
-				if node.Metadata["topic"] != topic {
-					continue
-				}
-
-				nodes = append(nodes, node)
-			}
-
-			// only process if we have nodes
-			if len(nodes) == 0 {
-				continue
-			}
-
-			switch service.Version {
-			// broadcast version means broadcast to all nodes
-			case broadcastVersion:
-				var success bool
-
-				// publish to all nodes
-				for _, node := range nodes {
-					// publish async
-					if err := pub(node, topic, b); err == nil {
-						success = true
-					}
-				}
-
-				// save if it failed to publish at least once
-				if !success {
-					h.saveMessage(topic, b)
-				}
-			default:
-				// select node to publish to
-				node := nodes[rand.Int()%len(nodes)]
-
-				// publish async to one node
-				if err := pub(node, topic, b); err != nil {
-					// if failed save it
-					h.saveMessage(topic, b)
-				}
-			}
-		}
-	}
-
-	// do the rest async
-	go func() {
-		// get a third of the backlog
-		messages := h.getMessage(topic, 8)
-		delay := (len(messages) > 1)
-
-		// publish all the messages
-		for _, msg := range messages {
-			// serialize here
-			srv(s, msg)
-
-			// sending a backlog of messages
-			if delay {
-				time.Sleep(time.Millisecond * 100)
-			}
-		}
-	}()
-
-	return nil
-}
-
-func (h *httpBroker) Subscribe(topic string, handler broker.Handler, opts ...broker.SubscribeOption) (broker.Subscriber, error) {
-	var err error
-	var host, port string
-	options := broker.NewSubscribeOptions(opts...)
-
-	// parse address for host, port
-	host, port, err = net.SplitHostPort(h.Address())
-	if err != nil {
-		return nil, err
-	}
-
-	addr, err := maddr.Extract(host)
-	if err != nil {
-		return nil, err
-	}
-
-	var secure bool
-
-	if h.opts.Secure || h.opts.TLSConfig != nil {
-		secure = true
-	}
-
-	// register service
-	node := &registry.Node{
-		Id:      topic + "-" + h.id,
-		Address: mnet.HostPort(addr, port),
-		Metadata: map[string]string{
-			"secure": fmt.Sprintf("%t", secure),
-			"broker": "http",
-			"topic":  topic,
-		},
-	}
-
-	// check for queue group or broadcast queue
-	version := options.Queue
-	if len(version) == 0 {
-		version = broadcastVersion
-	}
-
-	service := &registry.Service{
-		Name:    serviceName,
-		Version: version,
-		Nodes:   []*registry.Node{node},
-	}
-
-	// generate subscriber
-	subscriber := &httpSubscriber{
-		opts:  options,
-		hb:    h,
-		id:    node.Id,
-		topic: topic,
-		fn:    handler,
-		svc:   service,
-	}
-
-	// subscribe now
-	if err := h.subscribe(subscriber); err != nil {
-		return nil, err
-	}
-
-	// return the subscriber
-	return subscriber, nil
-}
-
-func (h *httpBroker) String() string {
-	return "http"
-}
-
-// NewBroker returns a new http broker
-func NewBroker(opts ...broker.Option) broker.Broker {
-	return newHttpBroker(opts...)
-}

broker/http/http_test.go

@@ -1,377 +0,0 @@
-package http
-
-import (
-	"sync"
-	"testing"
-	"time"
-
-	"github.com/asim/go-micro/v3/broker"
-	"github.com/asim/go-micro/v3/registry"
-	"github.com/asim/go-micro/v3/registry/memory"
-	"github.com/google/uuid"
-)
-
-var (
-	// mock data
-	testData = map[string][]*registry.Service{
-		"foo": {
-			{
-				Name:    "foo",
-				Version: "1.0.0",
-				Nodes: []*registry.Node{
-					{
-						Id:      "foo-1.0.0-123",
-						Address: "localhost:9999",
-					},
-					{
-						Id:      "foo-1.0.0-321",
-						Address: "localhost:9999",
-					},
-				},
-			},
-			{
-				Name:    "foo",
-				Version: "1.0.1",
-				Nodes: []*registry.Node{
-					{
-						Id:      "foo-1.0.1-321",
-						Address: "localhost:6666",
-					},
-				},
-			},
-			{
-				Name:    "foo",
-				Version: "1.0.3",
-				Nodes: []*registry.Node{
-					{
-						Id:      "foo-1.0.3-345",
-						Address: "localhost:8888",
-					},
-				},
-			},
-		},
-	}
-)
-
-func newTestRegistry() registry.Registry {
-	return memory.NewRegistry(memory.Services(testData))
-}
-
-func sub(be *testing.B, c int) {
-	be.StopTimer()
-	m := newTestRegistry()
-
-	b := NewBroker(broker.Registry(m))
-	topic := uuid.New().String()
-
-	if err := b.Init(); err != nil {
-		be.Fatalf("Unexpected init error: %v", err)
-	}
-
-	if err := b.Connect(); err != nil {
-		be.Fatalf("Unexpected connect error: %v", err)
-	}
-
-	msg := &broker.Message{
-		Header: map[string]string{
-			"Content-Type": "application/json",
-		},
-		Body: []byte(`{"message": "Hello World"}`),
-	}
-
-	var subs []broker.Subscriber
-	done := make(chan bool, c)
-
-	for i := 0; i < c; i++ {
-		sub, err := b.Subscribe(topic, func(m *broker.Message) error {
-			done <- true
-
-			if string(m.Body) != string(msg.Body) {
-				be.Fatalf("Unexpected msg %s, expected %s", string(m.Body), string(msg.Body))
-			}
-
-			return nil
-		}, broker.Queue("shared"))
-		if err != nil {
-			be.Fatalf("Unexpected subscribe error: %v", err)
-		}
-		subs = append(subs, sub)
-	}
-
-	for i := 0; i < be.N; i++ {
-		be.StartTimer()
-		if err := b.Publish(topic, msg); err != nil {
-			be.Fatalf("Unexpected publish error: %v", err)
-		}
-		<-done
-		be.StopTimer()
-	}
-
-	for _, sub := range subs {
-		sub.Unsubscribe()
-	}
-
-	if err := b.Disconnect(); err != nil {
-		be.Fatalf("Unexpected disconnect error: %v", err)
-	}
-}
-
-func pub(be *testing.B, c int) {
-	be.StopTimer()
-	m := newTestRegistry()
-	b := NewBroker(broker.Registry(m))
-	topic := uuid.New().String()
-
-	if err := b.Init(); err != nil {
-		be.Fatalf("Unexpected init error: %v", err)
-	}
-
-	if err := b.Connect(); err != nil {
-		be.Fatalf("Unexpected connect error: %v", err)
-	}
-
-	msg := &broker.Message{
-		Header: map[string]string{
-			"Content-Type": "application/json",
-		},
-		Body: []byte(`{"message": "Hello World"}`),
-	}
-
-	done := make(chan bool, c*4)
-
-	sub, err := b.Subscribe(topic, func(m *broker.Message) error {
-		done <- true
-		if string(m.Body) != string(msg.Body) {
-			be.Fatalf("Unexpected msg %s, expected %s", string(m.Body), string(msg.Body))
-		}
-		return nil
-	}, broker.Queue("shared"))
-	if err != nil {
-		be.Fatalf("Unexpected subscribe error: %v", err)
-	}
-
-	var wg sync.WaitGroup
-	ch := make(chan int, c*4)
-	be.StartTimer()
-
-	for i := 0; i < c; i++ {
-		go func() {
-			for range ch {
-				if err := b.Publish(topic, msg); err != nil {
-					be.Fatalf("Unexpected publish error: %v", err)
-				}
-				select {
-				case <-done:
-				case <-time.After(time.Second):
-				}
-				wg.Done()
-			}
-		}()
-	}
-
-	for i := 0; i < be.N; i++ {
-		wg.Add(1)
-		ch <- i
-	}
-
-	wg.Wait()
-	be.StopTimer()
-	sub.Unsubscribe()
-	close(ch)
-	close(done)
-
-	if err := b.Disconnect(); err != nil {
-		be.Fatalf("Unexpected disconnect error: %v", err)
-	}
-}
-
-func TestBroker(t *testing.T) {
-	m := newTestRegistry()
-	b := NewBroker(broker.Registry(m))
-
-	if err := b.Init(); err != nil {
-		t.Fatalf("Unexpected init error: %v", err)
-	}
-
-	if err := b.Connect(); err != nil {
-		t.Fatalf("Unexpected connect error: %v", err)
-	}
-
-	msg := &broker.Message{
-		Header: map[string]string{
-			"Content-Type": "application/json",
-		},
-		Body: []byte(`{"message": "Hello World"}`),
-	}
-
-	done := make(chan bool)
-
-	sub, err := b.Subscribe("test", func(m *broker.Message) error {
-
-		if string(m.Body) != string(msg.Body) {
-			t.Fatalf("Unexpected msg %s, expected %s", string(m.Body), string(msg.Body))
-		}
-
-		close(done)
-		return nil
-	})
-	if err != nil {
-		t.Fatalf("Unexpected subscribe error: %v", err)
-	}
-
-	if err := b.Publish("test", msg); err != nil {
-		t.Fatalf("Unexpected publish error: %v", err)
-	}
-
-	<-done
-	sub.Unsubscribe()
-
-	if err := b.Disconnect(); err != nil {
-		t.Fatalf("Unexpected disconnect error: %v", err)
-	}
-}
-
-func TestConcurrentSubBroker(t *testing.T) {
-	m := newTestRegistry()
-	b := NewBroker(broker.Registry(m))
-
-	if err := b.Init(); err != nil {
-		t.Fatalf("Unexpected init error: %v", err)
-	}
-
-	if err := b.Connect(); err != nil {
-		t.Fatalf("Unexpected connect error: %v", err)
-	}
-
-	msg := &broker.Message{
-		Header: map[string]string{
-			"Content-Type": "application/json",
-		},
-		Body: []byte(`{"message": "Hello World"}`),
-	}
-
-	var subs []broker.Subscriber
-	var wg sync.WaitGroup
-
-	for i := 0; i < 10; i++ {
-		sub, err := b.Subscribe("test", func(m *broker.Message) error {
-			defer wg.Done()
-
-			if string(m.Body) != string(msg.Body) {
-				t.Fatalf("Unexpected msg %s, expected %s", string(m.Body), string(msg.Body))
-			}
-
-			return nil
-		})
-		if err != nil {
-			t.Fatalf("Unexpected subscribe error: %v", err)
-		}
-
-		wg.Add(1)
-		subs = append(subs, sub)
-	}
-
-	if err := b.Publish("test", msg); err != nil {
-		t.Fatalf("Unexpected publish error: %v", err)
-	}
-
-	wg.Wait()
-
-	for _, sub := range subs {
-		sub.Unsubscribe()
-	}
-
-	if err := b.Disconnect(); err != nil {
-		t.Fatalf("Unexpected disconnect error: %v", err)
-	}
-}
-
-func TestConcurrentPubBroker(t *testing.T) {
-	m := newTestRegistry()
-	b := NewBroker(broker.Registry(m))
-
-	if err := b.Init(); err != nil {
-		t.Fatalf("Unexpected init error: %v", err)
-	}
-
-	if err := b.Connect(); err != nil {
-		t.Fatalf("Unexpected connect error: %v", err)
-	}
-
-	msg := &broker.Message{
-		Header: map[string]string{
-			"Content-Type": "application/json",
-		},
-		Body: []byte(`{"message": "Hello World"}`),
-	}
-
-	var wg sync.WaitGroup
-
-	sub, err := b.Subscribe("test", func(m *broker.Message) error {
-		defer wg.Done()
-
-		if string(m.Body) != string(msg.Body) {
-			t.Fatalf("Unexpected msg %s, expected %s", string(m.Body), string(msg.Body))
-		}
-
-		return nil
-	})
-	if err != nil {
-		t.Fatalf("Unexpected subscribe error: %v", err)
-	}
-
-	for i := 0; i < 10; i++ {
-		wg.Add(1)
-
-		if err := b.Publish("test", msg); err != nil {
-			t.Fatalf("Unexpected publish error: %v", err)
-		}
-	}
-
-	wg.Wait()
-
-	sub.Unsubscribe()
-
-	if err := b.Disconnect(); err != nil {
-		t.Fatalf("Unexpected disconnect error: %v", err)
-	}
-}
-
-func BenchmarkSub1(b *testing.B) {
-	sub(b, 1)
-}
-func BenchmarkSub8(b *testing.B) {
-	sub(b, 8)
-}
-
-func BenchmarkSub32(b *testing.B) {
-	sub(b, 32)
-}
-
-func BenchmarkSub64(b *testing.B) {
-	sub(b, 64)
-}
-
-func BenchmarkSub128(b *testing.B) {
-	sub(b, 128)
-}
-
-func BenchmarkPub1(b *testing.B) {
-	pub(b, 1)
-}
-
-func BenchmarkPub8(b *testing.B) {
-	pub(b, 8)
-}
-
-func BenchmarkPub32(b *testing.B) {
-	pub(b, 32)
-}
-
-func BenchmarkPub64(b *testing.B) {
-	pub(b, 64)
-}
-
-func BenchmarkPub128(b *testing.B) {
-	pub(b, 128)
-}

broker/http/options.go

@@ -1,23 +0,0 @@
-package http
-
-import (
-	"context"
-	"net/http"
-
-	"github.com/asim/go-micro/v3/broker"
-)
-
-// Handle registers the handler for the given pattern.
-func Handle(pattern string, handler http.Handler) broker.Option {
-	return func(o *broker.Options) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		handlers, ok := o.Context.Value("http_handlers").(map[string]http.Handler)
-		if !ok {
-			handlers = make(map[string]http.Handler)
-		}
-		handlers[pattern] = handler
-		o.Context = context.WithValue(o.Context, "http_handlers", handlers)
-	}
-}

broker/memory.go

@@ -0,0 +1,243 @@
+package broker
+
+import (
+	"context"
+	"errors"
+	"sync"
+
+	"github.com/google/uuid"
+	"github.com/unistack-org/micro/v3/logger"
+	maddr "github.com/unistack-org/micro/v3/util/addr"
+	mnet "github.com/unistack-org/micro/v3/util/net"
+	"github.com/unistack-org/micro/v3/util/rand"
+)
+
+type memoryBroker struct {
+	opts        Options
+	Subscribers map[string][]*memorySubscriber
+	addr        string
+	sync.RWMutex
+	connected bool
+}
+
+type memoryEvent struct {
+	opts    Options
+	err     error
+	message interface{}
+	topic   string
+}
+
+type memorySubscriber struct {
+	opts    SubscribeOptions
+	ctx     context.Context
+	exit    chan bool
+	handler Handler
+	id      string
+	topic   string
+}
+
+func (m *memoryBroker) Options() Options {
+	return m.opts
+}
+
+func (m *memoryBroker) Address() string {
+	return m.addr
+}
+
+func (m *memoryBroker) Connect(ctx context.Context) error {
+	m.Lock()
+	defer m.Unlock()
+
+	if m.connected {
+		return nil
+	}
+
+	// use 127.0.0.1 to avoid scan of all network interfaces
+	addr, err := maddr.Extract("127.0.0.1")
+	if err != nil {
+		return err
+	}
+	var rng rand.Rand
+	i := rng.Intn(20000)
+	// set addr with port
+	addr = mnet.HostPort(addr, 10000+i)
+
+	m.addr = addr
+	m.connected = true
+
+	return nil
+}
+
+func (m *memoryBroker) Disconnect(ctx context.Context) error {
+	m.Lock()
+	defer m.Unlock()
+
+	if !m.connected {
+		return nil
+	}
+
+	m.connected = false
+
+	return nil
+}
+
+func (m *memoryBroker) Init(opts ...Option) error {
+	for _, o := range opts {
+		o(&m.opts)
+	}
+	return nil
+}
+
+func (m *memoryBroker) Publish(ctx context.Context, topic string, msg *Message, opts ...PublishOption) error {
+	m.RLock()
+	if !m.connected {
+		m.RUnlock()
+		return errors.New("not connected")
+	}
+
+	subs, ok := m.Subscribers[topic]
+	m.RUnlock()
+	if !ok {
+		return nil
+	}
+
+	var v interface{}
+	if m.opts.Codec != nil {
+		buf, err := m.opts.Codec.Marshal(msg)
+		if err != nil {
+			return err
+		}
+		v = buf
+	} else {
+		v = msg
+	}
+
+	p := &memoryEvent{
+		topic:   topic,
+		message: v,
+		opts:    m.opts,
+	}
+
+	eh := m.opts.ErrorHandler
+
+	for _, sub := range subs {
+		if err := sub.handler(p); err != nil {
+			p.err = err
+			if sub.opts.ErrorHandler != nil {
+				eh = sub.opts.ErrorHandler
+			}
+			if eh != nil {
+				eh(p)
+			} else if m.opts.Logger.V(logger.ErrorLevel) {
+				m.opts.Logger.Error(m.opts.Context, err.Error())
+			}
+			continue
+		}
+	}
+
+	return nil
+}
+
+func (m *memoryBroker) Subscribe(ctx context.Context, topic string, handler Handler, opts ...SubscribeOption) (Subscriber, error) {
+	m.RLock()
+	if !m.connected {
+		m.RUnlock()
+		return nil, errors.New("not connected")
+	}
+	m.RUnlock()
+
+	options := NewSubscribeOptions(opts...)
+
+	id, err := uuid.NewRandom()
+	if err != nil {
+		return nil, err
+	}
+
+	sub := &memorySubscriber{
+		exit:    make(chan bool, 1),
+		id:      id.String(),
+		topic:   topic,
+		handler: handler,
+		opts:    options,
+		ctx:     ctx,
+	}
+
+	m.Lock()
+	m.Subscribers[topic] = append(m.Subscribers[topic], sub)
+	m.Unlock()
+
+	go func() {
+		<-sub.exit
+		m.Lock()
+		var newSubscribers []*memorySubscriber
+		for _, sb := range m.Subscribers[topic] {
+			if sb.id == sub.id {
+				continue
+			}
+			newSubscribers = append(newSubscribers, sb)
+		}
+		m.Subscribers[topic] = newSubscribers
+		m.Unlock()
+	}()
+
+	return sub, nil
+}
+
+func (m *memoryBroker) String() string {
+	return "memory"
+}
+
+func (m *memoryBroker) Name() string {
+	return m.opts.Name
+}
+
+func (m *memoryEvent) Topic() string {
+	return m.topic
+}
+
+func (m *memoryEvent) Message() *Message {
+	switch v := m.message.(type) {
+	case *Message:
+		return v
+	case []byte:
+		msg := &Message{}
+		if err := m.opts.Codec.Unmarshal(v, msg); err != nil {
+			if m.opts.Logger.V(logger.ErrorLevel) {
+				m.opts.Logger.Error(m.opts.Context, "[memory]: failed to unmarshal: %v", err)
+			}
+			return nil
+		}
+		return msg
+	}
+
+	return nil
+}
+
+func (m *memoryEvent) Ack() error {
+	return nil
+}
+
+func (m *memoryEvent) Error() error {
+	return m.err
+}
+
+func (m *memorySubscriber) Options() SubscribeOptions {
+	return m.opts
+}
+
+func (m *memorySubscriber) Topic() string {
+	return m.topic
+}
+
+func (m *memorySubscriber) Unsubscribe(ctx context.Context) error {
+	m.exit <- true
+	return nil
+}
+
+// NewBroker return new memory broker
+func NewBroker(opts ...Option) Broker {
+	return &memoryBroker{
+		opts:        NewOptions(opts...),
+		Subscribers: make(map[string][]*memorySubscriber),
+	}
+}

broker/memory/memory.go

@@ -1,183 +0,0 @@
-// Package memory provides a memory broker
-package memory
-
-import (
-	"context"
-	"errors"
-	"math/rand"
-	"sync"
-	"time"
-
-	"github.com/asim/go-micro/v3/broker"
-	maddr "github.com/asim/go-micro/v3/util/addr"
-	mnet "github.com/asim/go-micro/v3/util/net"
-	"github.com/google/uuid"
-)
-
-type memoryBroker struct {
-	opts broker.Options
-
-	addr string
-	sync.RWMutex
-	connected   bool
-	Subscribers map[string][]*memorySubscriber
-}
-
-type memorySubscriber struct {
-	id      string
-	topic   string
-	exit    chan bool
-	handler broker.Handler
-	opts    broker.SubscribeOptions
-}
-
-func (m *memoryBroker) Options() broker.Options {
-	return m.opts
-}
-
-func (m *memoryBroker) Address() string {
-	return m.addr
-}
-
-func (m *memoryBroker) Connect() error {
-	m.Lock()
-	defer m.Unlock()
-
-	if m.connected {
-		return nil
-	}
-
-	// use 127.0.0.1 to avoid scan of all network interfaces
-	addr, err := maddr.Extract("127.0.0.1")
-	if err != nil {
-		return err
-	}
-	i := rand.Intn(20000)
-	// set addr with port
-	addr = mnet.HostPort(addr, 10000+i)
-
-	m.addr = addr
-	m.connected = true
-
-	return nil
-}
-
-func (m *memoryBroker) Disconnect() error {
-	m.Lock()
-	defer m.Unlock()
-
-	if !m.connected {
-		return nil
-	}
-
-	m.connected = false
-
-	return nil
-}
-
-func (m *memoryBroker) Init(opts ...broker.Option) error {
-	for _, o := range opts {
-		o(&m.opts)
-	}
-	return nil
-}
-
-func (m *memoryBroker) Publish(topic string, msg *broker.Message, opts ...broker.PublishOption) error {
-	m.RLock()
-	if !m.connected {
-		m.RUnlock()
-		return errors.New("not connected")
-	}
-
-	subs, ok := m.Subscribers[topic]
-	m.RUnlock()
-	if !ok {
-		return nil
-	}
-
-	for _, sub := range subs {
-		if err := sub.handler(msg); err != nil {
-			if eh := sub.opts.ErrorHandler; eh != nil {
-				eh(msg, err)
-			}
-			continue
-		}
-	}
-
-	return nil
-}
-
-func (m *memoryBroker) Subscribe(topic string, handler broker.Handler, opts ...broker.SubscribeOption) (broker.Subscriber, error) {
-	m.RLock()
-	if !m.connected {
-		m.RUnlock()
-		return nil, errors.New("not connected")
-	}
-	m.RUnlock()
-
-	var options broker.SubscribeOptions
-	for _, o := range opts {
-		o(&options)
-	}
-
-	sub := &memorySubscriber{
-		exit:    make(chan bool, 1),
-		id:      uuid.New().String(),
-		topic:   topic,
-		handler: handler,
-		opts:    options,
-	}
-
-	m.Lock()
-	m.Subscribers[topic] = append(m.Subscribers[topic], sub)
-	m.Unlock()
-
-	go func() {
-		<-sub.exit
-		m.Lock()
-		var newSubscribers []*memorySubscriber
-		for _, sb := range m.Subscribers[topic] {
-			if sb.id == sub.id {
-				continue
-			}
-			newSubscribers = append(newSubscribers, sb)
-		}
-		m.Subscribers[topic] = newSubscribers
-		m.Unlock()
-	}()
-
-	return sub, nil
-}
-
-func (m *memoryBroker) String() string {
-	return "memory"
-}
-
-func (m *memorySubscriber) Options() broker.SubscribeOptions {
-	return m.opts
-}
-
-func (m *memorySubscriber) Topic() string {
-	return m.topic
-}
-
-func (m *memorySubscriber) Unsubscribe() error {
-	m.exit <- true
-	return nil
-}
-
-func NewBroker(opts ...broker.Option) broker.Broker {
-	options := broker.Options{
-		Context: context.Background(),
-	}
-
-	rand.Seed(time.Now().UnixNano())
-	for _, o := range opts {
-		o(&options)
-	}
-
-	return &memoryBroker{
-		opts:        options,
-		Subscribers: make(map[string][]*memorySubscriber),
-	}
-}

broker/memory_test.go

@@ -1,33 +1,33 @@
-package memory
+package broker
 
 import (
+	"context"
 	"fmt"
 	"testing"
-
-	"github.com/asim/go-micro/v3/broker"
 )
 
 func TestMemoryBroker(t *testing.T) {
 	b := NewBroker()
+	ctx := context.Background()
 
-	if err := b.Connect(); err != nil {
+	if err := b.Connect(ctx); err != nil {
 		t.Fatalf("Unexpected connect error %v", err)
 	}
 
 	topic := "test"
 	count := 10
 
-	fn := func(m *broker.Message) error {
+	fn := func(p Event) error {
 		return nil
 	}
 
-	sub, err := b.Subscribe(topic, fn)
+	sub, err := b.Subscribe(ctx, topic, fn)
 	if err != nil {
 		t.Fatalf("Unexpected error subscribing %v", err)
 	}
 
 	for i := 0; i < count; i++ {
-		message := &broker.Message{
+		message := &Message{
 			Header: map[string]string{
 				"foo": "bar",
 				"id":  fmt.Sprintf("%d", i),
@@ -35,16 +35,16 @@ func TestMemoryBroker(t *testing.T) {
 			Body: []byte(`hello world`),
 		}
 
-		if err := b.Publish(topic, message); err != nil {
+		if err := b.Publish(ctx, topic, message); err != nil {
 			t.Fatalf("Unexpected error publishing %d", i)
 		}
 	}
 
-	if err := sub.Unsubscribe(); err != nil {
+	if err := sub.Unsubscribe(ctx); err != nil {
 		t.Fatalf("Unexpected error unsubscribing from %s: %v", topic, err)
 	}
 
-	if err := b.Disconnect(); err != nil {
+	if err := b.Disconnect(ctx); err != nil {
 		t.Fatalf("Unexpected connect error %v", err)
 	}
 }

broker/options.go

@@ -4,64 +4,130 @@ import (
 	"context"
 	"crypto/tls"
 
-	"github.com/asim/go-micro/v3/codec"
-	"github.com/asim/go-micro/v3/registry"
+	"github.com/unistack-org/micro/v3/codec"
+	"github.com/unistack-org/micro/v3/logger"
+	"github.com/unistack-org/micro/v3/meter"
+	"github.com/unistack-org/micro/v3/register"
+	"github.com/unistack-org/micro/v3/tracer"
 )
 
+// Options struct
 type Options struct {
-	Addrs  []string
-	Secure bool
-	Codec  codec.Marshaler
-
+	// Tracer used for tracing
+	Tracer tracer.Tracer
+	// Register can be used for clustering
+	Register register.Register
+	// Codec holds the codec for marshal/unmarshal
+	Codec codec.Codec
+	// Logger used for logging
+	Logger logger.Logger
+	// Meter used for metrics
+	Meter meter.Meter
+	// Context holds external options
+	Context context.Context
+	// TLSConfig holds tls.TLSConfig options
 	TLSConfig *tls.Config
-	// Registry used for clustering
-	Registry registry.Registry
-	// Other options for implementations of the interface
-	// can be stored in a context
-	Context context.Context
+	// ErrorHandler used when broker can't unmarshal incoming message
+	ErrorHandler Handler
+	// Name holds the broker name
+	Name string
+	// Addrs holds the broker address
+	Addrs []string
 }
 
+// NewOptions create new Options
+func NewOptions(opts ...Option) Options {
+	options := Options{
+		Register: register.DefaultRegister,
+		Logger:   logger.DefaultLogger,
+		Context:  context.Background(),
+		Meter:    meter.DefaultMeter,
+		Codec:    codec.DefaultCodec,
+		Tracer:   tracer.DefaultTracer,
+	}
+	for _, o := range opts {
+		o(&options)
+	}
+	return options
+}
+
+// Context sets the context option
+func Context(ctx context.Context) Option {
+	return func(o *Options) {
+		o.Context = ctx
+	}
+}
+
+// PublishOptions struct
 type PublishOptions struct {
-	// Other options for implementations of the interface
-	// can be stored in a context
+	// Context holds external options
 	Context context.Context
+	// BodyOnly flag says the message contains raw body bytes
+	BodyOnly bool
 }
 
+// NewPublishOptions creates PublishOptions struct
+func NewPublishOptions(opts ...PublishOption) PublishOptions {
+	options := PublishOptions{
+		Context: context.Background(),
+	}
+
+	for _, o := range opts {
+		o(&options)
+	}
+
+	return options
+}
+
+// SubscribeOptions struct
 type SubscribeOptions struct {
-	// Handler executed when errors occur processing messages
-	ErrorHandler ErrorHandler
-
-	// Subscribers with the same queue name
-	// will create a shared subscription where each
-	// receives a subset of messages.
-	Queue string
-
-	// Other options for implementations of the interface
-	// can be stored in a context
+	// Context holds external options
 	Context context.Context
+	// ErrorHandler used when broker can't unmarshal incoming message
+	ErrorHandler Handler
+	// Group holds consumer group
+	Group string
+	// AutoAck flag specifies auto ack of incoming message when no error happens
+	AutoAck bool
+	// BodyOnly flag specifies that message contains only body bytes without header
+	BodyOnly bool
 }
 
+// Option func
 type Option func(*Options)
 
+// PublishOption func
 type PublishOption func(*PublishOptions)
 
-// PublishContext set context
+// PublishBodyOnly publish only body of the message
+func PublishBodyOnly(b bool) PublishOption {
+	return func(o *PublishOptions) {
+		o.BodyOnly = b
+	}
+}
+
+// PublishContext sets the context
 func PublishContext(ctx context.Context) PublishOption {
 	return func(o *PublishOptions) {
 		o.Context = ctx
 	}
 }
 
+// SubscribeOption func
 type SubscribeOption func(*SubscribeOptions)
 
+// NewSubscribeOptions creates new SubscribeOptions
 func NewSubscribeOptions(opts ...SubscribeOption) SubscribeOptions {
-	opt := SubscribeOptions{}
-
-	for _, o := range opts {
-		o(&opt)
+	options := SubscribeOptions{
+		AutoAck: true,
+		Context: context.Background(),
 	}
 
-	return opt
+	for _, o := range opts {
+		o(&options)
+	}
+
+	return options
 }
 
 // Addrs sets the host addresses to be used by the broker
@@ -73,47 +139,107 @@ func Addrs(addrs ...string) Option {
 
 // Codec sets the codec used for encoding/decoding used where
 // a broker does not support headers
-func Codec(c codec.Marshaler) Option {
+func Codec(c codec.Codec) Option {
 	return func(o *Options) {
 		o.Codec = c
 	}
 }
 
+// DisableAutoAck disables auto ack
+func DisableAutoAck() SubscribeOption {
+	return func(o *SubscribeOptions) {
+		o.AutoAck = false
+	}
+}
+
+// SubscribeAutoAck will disable auto acking of messages
+// after they have been handled.
+func SubscribeAutoAck(b bool) SubscribeOption {
+	return func(o *SubscribeOptions) {
+		o.AutoAck = b
+	}
+}
+
+// SubscribeBodyOnly consumes only body of the message
+func SubscribeBodyOnly(b bool) SubscribeOption {
+	return func(o *SubscribeOptions) {
+		o.BodyOnly = b
+	}
+}
+
 // ErrorHandler will catch all broker errors that cant be handled
 // in normal way, for example Codec errors
-func HandleError(h ErrorHandler) SubscribeOption {
+func ErrorHandler(h Handler) Option {
+	return func(o *Options) {
+		o.ErrorHandler = h
+	}
+}
+
+// SubscribeErrorHandler will catch all broker errors that cant be handled
+// in normal way, for example Codec errors
+func SubscribeErrorHandler(h Handler) SubscribeOption {
 	return func(o *SubscribeOptions) {
 		o.ErrorHandler = h
 	}
 }
 
-// Queue sets the name of the queue to share messages on
+// Queue sets the subscribers queue
+// Deprecated
 func Queue(name string) SubscribeOption {
 	return func(o *SubscribeOptions) {
-		o.Queue = name
+		o.Group = name
 	}
 }
 
-func Registry(r registry.Registry) Option {
+// SubscribeGroup sets the name of the queue to share messages on
+func SubscribeGroup(name string) SubscribeOption {
+	return func(o *SubscribeOptions) {
+		o.Group = name
+	}
+}
+
+// Register sets register option
+func Register(r register.Register) Option {
 	return func(o *Options) {
-		o.Registry = r
+		o.Register = r
 	}
 }
 
-// Secure communication with the broker
-func Secure(b bool) Option {
-	return func(o *Options) {
-		o.Secure = b
-	}
-}
-
-// Specify TLS Config
+// TLSConfig sets the TLS Config
 func TLSConfig(t *tls.Config) Option {
 	return func(o *Options) {
 		o.TLSConfig = t
 	}
 }
 
+// Logger sets the logger
+func Logger(l logger.Logger) Option {
+	return func(o *Options) {
+		o.Logger = l
+	}
+}
+
+// Tracer to be used for tracing
+func Tracer(t tracer.Tracer) Option {
+	return func(o *Options) {
+		o.Tracer = t
+	}
+}
+
+// Meter sets the meter
+func Meter(m meter.Meter) Option {
+	return func(o *Options) {
+		o.Meter = m
+	}
+}
+
+// Name sets the name
+func Name(n string) Option {
+	return func(o *Options) {
+		o.Name = n
+	}
+}
+
 // SubscribeContext set context
 func SubscribeContext(ctx context.Context) SubscribeOption {
 	return func(o *SubscribeOptions) {

build/build.go

@@ -4,17 +4,13 @@ package build
 // Build is an interface for building packages
 type Build interface {
 	// Package builds a package
-	Package(*Source) (*Package, error)
+	Package(name string, src *Source) (*Package, error)
 	// Remove removes the package
 	Remove(*Package) error
-	// Implementation of build
-	String() string
 }
 
 // Source is the source of a build
 type Source struct {
-	// Name of the source
-	Name string
 	// Path to the source if local
 	Path string
 	// Language is the language of code
@@ -25,12 +21,12 @@ type Source struct {
 
 // Package is packaged format for source
 type Package struct {
+	// Source of the package
+	Source *Source
 	// Name of the package
 	Name string
 	// Location of the package
 	Path string
 	// Type of package e.g tarball, binary, docker
 	Type string
-	// Source of the package
-	Source *Source
 }

build/golang/golang.go

@@ -1,76 +0,0 @@
-// Package golang is a go package manager
-package golang
-
-import (
-	"os"
-	"os/exec"
-	"path/filepath"
-
-	"github.com/asim/go-micro/v3/build"
-)
-
-type goBuild struct {
-	Options build.Options
-	Cmd     string
-	Path    string
-}
-
-// whichGo locates the go command
-func whichGo() string {
-	// check GOROOT
-	if gr := os.Getenv("GOROOT"); len(gr) > 0 {
-		return filepath.Join(gr, "bin", "go")
-	}
-
-	// check path
-	for _, p := range filepath.SplitList(os.Getenv("PATH")) {
-		bin := filepath.Join(p, "go")
-		if _, err := os.Stat(bin); err == nil {
-			return bin
-		}
-	}
-
-	// best effort
-	return "go"
-}
-
-func (g *goBuild) Package(src *build.Source) (*build.Package, error) {
-	name := src.Name
-	binary := filepath.Join(g.Path, name)
-	source := src.Path
-
-	cmd := exec.Command(g.Cmd, "build", "-o", binary, source)
-	if err := cmd.Run(); err != nil {
-		return nil, err
-	}
-
-	return &build.Package{
-		Name:   name,
-		Path:   binary,
-		Type:   g.String(),
-		Source: src,
-	}, nil
-}
-
-func (g *goBuild) Remove(b *build.Package) error {
-	binary := filepath.Join(b.Path, b.Name)
-	return os.Remove(binary)
-}
-
-func (g *goBuild) String() string {
-	return "golang"
-}
-
-func NewBuild(opts ...build.Option) build.Build {
-	options := build.Options{
-		Path: os.TempDir(),
-	}
-	for _, o := range opts {
-		o(&options)
-	}
-	return &goBuild{
-		Options: options,
-		Cmd:     whichGo(),
-		Path:    options.Path,
-	}
-}

build/options.go

@@ -1,13 +1,15 @@
 package build
 
+// Options struct
 type Options struct {
 	// local path to download source
 	Path string
 }
 
+// Option func
 type Option func(o *Options)
 
-// Local path for repository
+// Path is the Local path for repository
 func Path(p string) Option {
 	return func(o *Options) {
 		o.Path = p

build/tar/tar.go

@@ -1,46 +0,0 @@
-// Package tar basically tarballs source code
-package tar
-
-import (
-	"os"
-	"path/filepath"
-
-	"github.com/asim/go-micro/v3/build"
-)
-
-type tarBuild struct{}
-
-func (t *tarBuild) Package(src *build.Source) (*build.Package, error) {
-	name := src.Name
-	pkg := name + ".tar.gz"
-	// path to the tarball
-	path := filepath.Join(os.TempDir(), src.Path, pkg)
-
-	// create a temp directory
-	if err := os.MkdirAll(filepath.Join(os.TempDir(), src.Path), 0755); err != nil {
-		return nil, err
-	}
-
-	if err := Compress(src.Path, path); err != nil {
-		return nil, err
-	}
-
-	return &build.Package{
-		Name:   name,
-		Path:   path,
-		Type:   t.String(),
-		Source: src,
-	}, nil
-}
-
-func (t *tarBuild) Remove(b *build.Package) error {
-	return os.Remove(b.Path)
-}
-
-func (t *tarBuild) String() string {
-	return "tar.gz"
-}
-
-func NewBuild(opts ...build.Option) build.Build {
-	return new(tarBuild)
-}

build/tar/util.go

@@ -1,92 +0,0 @@
-package tar
-
-import (
-	"archive/tar"
-	"bytes"
-	"compress/gzip"
-	"io"
-	"os"
-	"path/filepath"
-	"strings"
-)
-
-func Compress(source, dest string) error {
-	// tar + gzip
-	var buf bytes.Buffer
-	_ = compress(source, &buf)
-
-	// write the .tar.gzip
-	fileToWrite, err := os.OpenFile(dest, os.O_CREATE|os.O_RDWR, 0666)
-	if err != nil {
-		return err
-	}
-	_, err = io.Copy(fileToWrite, &buf)
-	return err
-}
-
-func compress(src string, buf io.Writer) error {
-	// tar > gzip > buf
-	zr := gzip.NewWriter(buf)
-	tw := tar.NewWriter(zr)
-
-	// walk through every file in the folder
-	filepath.Walk(src, func(file string, fi os.FileInfo, err error) error {
-
-		// generate tar header
-		header, err := tar.FileInfoHeader(fi, file)
-		if err != nil {
-			return err
-		}
-
-		// must provide real name
-		// (see https://golang.org/src/archive/tar/common.go?#L626)
-
-		srcWithSlash := src
-		if !strings.HasSuffix(src, string(filepath.Separator)) {
-			srcWithSlash = src + string(filepath.Separator)
-		}
-		header.Name = strings.ReplaceAll(file, srcWithSlash, "")
-		if header.Name == src || len(strings.TrimSpace(header.Name)) == 0 {
-			return nil
-		}
-
-		// @todo This is a quick hack to speed up whole repo uploads
-		// https://github.com/micro/micro/pull/956
-		if !fi.IsDir() && !strings.HasSuffix(header.Name, ".go") &&
-			!strings.HasSuffix(header.Name, ".mod") &&
-			!strings.HasSuffix(header.Name, ".sum") {
-			return nil
-		}
-
-		// write header
-		if err := tw.WriteHeader(header); err != nil {
-			return err
-		}
-		if fi.IsDir() {
-			return nil
-		}
-
-		// if not a dir, write file content
-
-		data, err := os.Open(file)
-		if err != nil {
-			return err
-		}
-		if _, err := io.Copy(tw, data); err != nil {
-			return err
-		}
-
-		return nil
-	})
-
-	// produce tar
-	if err := tw.Close(); err != nil {
-		return err
-	}
-	// produce gzip
-	if err := zr.Close(); err != nil {
-		return err
-	}
-	//
-	return nil
-}

cache/cache.go

@@ -1,29 +0,0 @@
-// Package cache is a caching interface
-package cache
-
-// Cache is an interface for caching
-type Cache interface {
-	// Initialise options
-	Init(...Option) error
-	// Get a value
-	Get(key string) (interface{}, error)
-	// Set a value
-	Set(key string, val interface{}) error
-	// Delete a value
-	Delete(key string) error
-	// Name of the implementation
-	String() string
-}
-
-type Options struct {
-	Nodes []string
-}
-
-type Option func(o *Options)
-
-// Nodes sets the nodes for the cache
-func Nodes(v ...string) Option {
-	return func(o *Options) {
-		o.Nodes = v
-	}
-}

cache/memory/memory.go

@@ -1,56 +0,0 @@
-// Package memory is an in memory cache
-package memory
-
-import (
-	"sync"
-
-	"github.com/asim/go-micro/v3/cache"
-	"github.com/asim/go-micro/v3/errors"
-)
-
-type memoryCache struct {
-	// TODO: use a decent caching library
-	sync.RWMutex
-	values map[string]interface{}
-}
-
-func (m *memoryCache) Init(opts ...cache.Option) error {
-	// TODO: implement
-	return nil
-}
-
-func (m *memoryCache) Get(key string) (interface{}, error) {
-	m.RLock()
-	defer m.RUnlock()
-
-	v, ok := m.values[key]
-	if !ok {
-		return nil, errors.NotFound("go.micro.cache", key+" not found")
-	}
-
-	return v, nil
-}
-
-func (m *memoryCache) Set(key string, val interface{}) error {
-	m.Lock()
-	m.values[key] = val
-	m.Unlock()
-	return nil
-}
-
-func (m *memoryCache) Delete(key string) error {
-	m.Lock()
-	delete(m.values, key)
-	m.Unlock()
-	return nil
-}
-
-func (m *memoryCache) String() string {
-	return "memory"
-}
-
-func NewCache(opts ...cache.Option) cache.Cache {
-	return &memoryCache{
-		values: make(map[string]interface{}),
-	}
-}

client/backoff.go

@@ -4,9 +4,10 @@ import (
 	"context"
 	"time"
 
-	"github.com/asim/go-micro/v3/util/backoff"
+	"github.com/unistack-org/micro/v3/util/backoff"
 )
 
+// BackoffFunc is the backoff call func
 type BackoffFunc func(ctx context.Context, req Request, attempts int) (time.Duration, error)
 
 func exponentialBackoff(ctx context.Context, req Request, attempts int) (time.Duration, error) {

client/backoff_test.go

@@ -4,8 +4,6 @@ import (
 	"context"
 	"testing"
 	"time"
-
-	"github.com/asim/go-micro/v3/codec"
 )
 
 func TestBackoff(t *testing.T) {
@@ -34,63 +32,3 @@ func TestBackoff(t *testing.T) {
 		}
 	}
 }
-
-type testRequest struct {
-	service     string
-	method      string
-	endpoint    string
-	contentType string
-	codec       codec.Codec
-	body        interface{}
-	opts        RequestOptions
-}
-
-func newRequest(service, endpoint string, request interface{}, contentType string, reqOpts ...RequestOption) Request {
-	var opts RequestOptions
-
-	for _, o := range reqOpts {
-		o(&opts)
-	}
-
-	// set the content-type specified
-	if len(opts.ContentType) > 0 {
-		contentType = opts.ContentType
-	}
-
-	return &testRequest{
-		service:     service,
-		method:      endpoint,
-		endpoint:    endpoint,
-		body:        request,
-		contentType: contentType,
-		opts:        opts,
-	}
-}
-
-func (r *testRequest) ContentType() string {
-	return r.contentType
-}
-
-func (r *testRequest) Service() string {
-	return r.service
-}
-
-func (r *testRequest) Method() string {
-	return r.method
-}
-
-func (r *testRequest) Endpoint() string {
-	return r.endpoint
-}
-
-func (r *testRequest) Body() interface{} {
-	return r.body
-}
-
-func (r *testRequest) Codec() codec.Writer {
-	return r.codec
-}
-
-func (r *testRequest) Stream() bool {
-	return r.opts.Stream
-}

client/client.go

@@ -5,17 +5,38 @@ import (
 	"context"
 	"time"
 
-	"github.com/asim/go-micro/v3/codec"
+	"github.com/unistack-org/micro/v3/codec"
+	"github.com/unistack-org/micro/v3/metadata"
+)
+
+var (
+	// DefaultClient is the global default client
+	DefaultClient Client = NewClient()
+	// DefaultContentType is the default content-type if not specified
+	DefaultContentType = "application/json"
+	// DefaultBackoff is the default backoff function for retries
+	DefaultBackoff = exponentialBackoff
+	// DefaultRetry is the default check-for-retry function for retries
+	DefaultRetry = RetryNever
+	// DefaultRetries is the default number of times a request is tried
+	DefaultRetries = 0
+	// DefaultRequestTimeout is the default request timeout
+	DefaultRequestTimeout = time.Second * 5
+	// DefaultPoolSize sets the connection pool size
+	DefaultPoolSize = 100
+	// DefaultPoolTTL sets the connection pool ttl
+	DefaultPoolTTL = time.Minute
 )
 
 // Client is the interface used to make requests to services.
 // It supports Request/Response via Transport and Publishing via the Broker.
 // It also supports bidirectional streaming of requests.
 type Client interface {
-	Init(...Option) error
+	Name() string
+	Init(opts ...Option) error
 	Options() Options
 	NewMessage(topic string, msg interface{}, opts ...MessageOption) Message
-	NewRequest(service, endpoint string, req interface{}, reqOpts ...RequestOption) Request
+	NewRequest(service string, endpoint string, req interface{}, opts ...RequestOption) Request
 	Call(ctx context.Context, req Request, rsp interface{}, opts ...CallOption) error
 	Stream(ctx context.Context, req Request, opts ...CallOption) (Stream, error)
 	Publish(ctx context.Context, msg Message, opts ...PublishOption) error
@@ -42,7 +63,7 @@ type Request interface {
 	// The unencoded request body
 	Body() interface{}
 	// Write to the encoded request writer. This is nil before a call is made
-	Codec() codec.Writer
+	Codec() codec.Codec
 	// indicates whether the request will be a streaming one rather than unary
 	Stream() bool
 }
@@ -50,9 +71,9 @@ type Request interface {
 // Response is the response received from a service
 type Response interface {
 	// Read the response
-	Codec() codec.Reader
+	Codec() codec.Codec
 	// read the header
-	Header() map[string]string
+	Header() metadata.Metadata
 	// Read the undecoded response
 	Read() ([]byte, error)
 }
@@ -66,9 +87,9 @@ type Stream interface {
 	// The response read
 	Response() Response
 	// Send will encode and send a request
-	Send(interface{}) error
+	Send(msg interface{}) error
 	// Recv will decode and read a response
-	Recv(interface{}) error
+	Recv(msg interface{}) error
 	// Error returns the stream error
 	Error() error
 	// Close closes the stream
@@ -89,18 +110,3 @@ type MessageOption func(*MessageOptions)
 
 // RequestOption used by NewRequest
 type RequestOption func(*RequestOptions)
-
-var (
-	// DefaultBackoff is the default backoff function for retries
-	DefaultBackoff = exponentialBackoff
-	// DefaultRetry is the default check-for-retry function for retries
-	DefaultRetry = RetryOnError
-	// DefaultRetries is the default number of times a request is tried
-	DefaultRetries = 1
-	// DefaultRequestTimeout is the default request timeout
-	DefaultRequestTimeout = time.Second * 5
-	// DefaultPoolSize sets the connection pool size
-	DefaultPoolSize = 100
-	// DefaultPoolTTL sets the connection pool ttl
-	DefaultPoolTTL = time.Minute
-)

client/client_call_options.go

@@ -0,0 +1,23 @@
+package client
+
+import (
+	"context"
+)
+
+type clientCallOptions struct {
+	Client
+	opts []CallOption
+}
+
+func (s *clientCallOptions) Call(ctx context.Context, req Request, rsp interface{}, opts ...CallOption) error {
+	return s.Client.Call(ctx, req, rsp, append(s.opts, opts...)...)
+}
+
+func (s *clientCallOptions) Stream(ctx context.Context, req Request, opts ...CallOption) (Stream, error) {
+	return s.Client.Stream(ctx, req, append(s.opts, opts...)...)
+}
+
+// NewClientCallOptions add CallOption to every call
+func NewClientCallOptions(c Client, opts ...CallOption) Client {
+	return &clientCallOptions{c, opts}
+}

client/context.go

@@ -0,0 +1,54 @@
+package client
+
+import (
+	"context"
+)
+
+type clientKey struct{}
+
+// FromContext get client from context
+func FromContext(ctx context.Context) (Client, bool) {
+	if ctx == nil {
+		return nil, false
+	}
+	c, ok := ctx.Value(clientKey{}).(Client)
+	return c, ok
+}
+
+// NewContext put client in context
+func NewContext(ctx context.Context, c Client) context.Context {
+	if ctx == nil {
+		ctx = context.Background()
+	}
+	return context.WithValue(ctx, clientKey{}, c)
+}
+
+// SetPublishOption returns a function to setup a context with given value
+func SetPublishOption(k, v interface{}) PublishOption {
+	return func(o *PublishOptions) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+		o.Context = context.WithValue(o.Context, k, v)
+	}
+}
+
+// SetCallOption returns a function to setup a context with given value
+func SetCallOption(k, v interface{}) CallOption {
+	return func(o *CallOptions) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+		o.Context = context.WithValue(o.Context, k, v)
+	}
+}
+
+// SetOption returns a function to setup a context with given value
+func SetOption(k, v interface{}) Option {
+	return func(o *Options) {
+		if o.Context == nil {
+			o.Context = context.Background()
+		}
+		o.Context = context.WithValue(o.Context, k, v)
+	}
+}

client/grpc/README.md

@@ -1,25 +0,0 @@
-# GRPC Client
-
-The grpc client is a [micro.Client](https://godoc.org/github.com/asim/go-micro/client#Client) compatible client.
-
-## Overview
-
-The client makes use of the [google.golang.org/grpc](google.golang.org/grpc) framework for the underlying communication mechanism.
-
-## Usage
-
-Specify the client to your micro service
-
-```go
-import (
-	"github.com/asim/go-micro"
-	"github.com/micro/go-plugins/client/grpc"
-)
-
-func main() {
-	service := micro.NewService(
-		micro.Name("greeter"),
-		micro.Client(grpc.NewClient()),
-	)
-}
-```

client/grpc/codec.go

@@ -1,206 +0,0 @@
-package grpc
-
-import (
-	"encoding/json"
-	"fmt"
-	"strings"
-
-	b "bytes"
-
-	"github.com/asim/go-micro/v3/codec"
-	"github.com/asim/go-micro/v3/codec/bytes"
-	"github.com/golang/protobuf/jsonpb"
-	"github.com/golang/protobuf/proto"
-	"github.com/oxtoacart/bpool"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/encoding"
-)
-
-type jsonCodec struct{}
-type protoCodec struct{}
-type bytesCodec struct{}
-type wrapCodec struct{ encoding.Codec }
-
-var jsonpbMarshaler = &jsonpb.Marshaler{}
-var useNumber bool
-
-// create buffer pool with 16 instances each preallocated with 256 bytes
-var bufferPool = bpool.NewSizedBufferPool(16, 256)
-
-var (
-	defaultGRPCCodecs = map[string]encoding.Codec{
-		"application/json":         jsonCodec{},
-		"application/proto":        protoCodec{},
-		"application/protobuf":     protoCodec{},
-		"application/octet-stream": protoCodec{},
-		"application/grpc":         protoCodec{},
-		"application/grpc+json":    jsonCodec{},
-		"application/grpc+proto":   protoCodec{},
-		"application/grpc+bytes":   bytesCodec{},
-	}
-)
-
-// UseNumber fix unmarshal Number(8234567890123456789) to interface(8.234567890123457e+18)
-func UseNumber() {
-	useNumber = true
-}
-
-func (w wrapCodec) String() string {
-	return w.Codec.Name()
-}
-
-func (w wrapCodec) Marshal(v interface{}) ([]byte, error) {
-	b, ok := v.(*bytes.Frame)
-	if ok {
-		return b.Data, nil
-	}
-	return w.Codec.Marshal(v)
-}
-
-func (w wrapCodec) Unmarshal(data []byte, v interface{}) error {
-	b, ok := v.(*bytes.Frame)
-	if ok {
-		b.Data = data
-		return nil
-	}
-	return w.Codec.Unmarshal(data, v)
-}
-
-func (protoCodec) Marshal(v interface{}) ([]byte, error) {
-	switch m := v.(type) {
-	case *bytes.Frame:
-		return m.Data, nil
-	case proto.Message:
-		return proto.Marshal(m)
-	}
-	return nil, fmt.Errorf("failed to marshal: %v is not type of *bytes.Frame or proto.Message", v)
-}
-
-func (protoCodec) Unmarshal(data []byte, v interface{}) error {
-	m, ok := v.(proto.Message)
-	if !ok {
-		return fmt.Errorf("failed to unmarshal: %v is not type of proto.Message", v)
-	}
-	return proto.Unmarshal(data, m)
-}
-
-func (protoCodec) Name() string {
-	return "proto"
-}
-
-func (bytesCodec) Marshal(v interface{}) ([]byte, error) {
-	b, ok := v.(*[]byte)
-	if !ok {
-		return nil, fmt.Errorf("failed to marshal: %v is not type of *[]byte", v)
-	}
-	return *b, nil
-}
-
-func (bytesCodec) Unmarshal(data []byte, v interface{}) error {
-	b, ok := v.(*[]byte)
-	if !ok {
-		return fmt.Errorf("failed to unmarshal: %v is not type of *[]byte", v)
-	}
-	*b = data
-	return nil
-}
-
-func (bytesCodec) Name() string {
-	return "bytes"
-}
-
-func (jsonCodec) Marshal(v interface{}) ([]byte, error) {
-	if b, ok := v.(*bytes.Frame); ok {
-		return b.Data, nil
-	}
-
-	if pb, ok := v.(proto.Message); ok {
-		buf := bufferPool.Get()
-		defer bufferPool.Put(buf)
-		if err := jsonpbMarshaler.Marshal(buf, pb); err != nil {
-			return nil, err
-		}
-		return buf.Bytes(), nil
-	}
-
-	return json.Marshal(v)
-}
-
-func (jsonCodec) Unmarshal(data []byte, v interface{}) error {
-	if len(data) == 0 {
-		return nil
-	}
-	if b, ok := v.(*bytes.Frame); ok {
-		b.Data = data
-		return nil
-	}
-	if pb, ok := v.(proto.Message); ok {
-		return jsonpb.Unmarshal(b.NewReader(data), pb)
-	}
-
-	dec := json.NewDecoder(b.NewReader(data))
-	if useNumber {
-		dec.UseNumber()
-	}
-	return dec.Decode(v)
-}
-
-func (jsonCodec) Name() string {
-	return "json"
-}
-
-type grpcCodec struct {
-	// headers
-	id       string
-	target   string
-	method   string
-	endpoint string
-
-	s grpc.ClientStream
-	c encoding.Codec
-}
-
-func (g *grpcCodec) ReadHeader(m *codec.Message, mt codec.MessageType) error {
-	md, err := g.s.Header()
-	if err != nil {
-		return err
-	}
-	if m == nil {
-		m = new(codec.Message)
-	}
-	if m.Header == nil {
-		m.Header = make(map[string]string, len(md))
-	}
-	for k, v := range md {
-		m.Header[k] = strings.Join(v, ",")
-	}
-	m.Id = g.id
-	m.Target = g.target
-	m.Method = g.method
-	m.Endpoint = g.endpoint
-	return nil
-}
-
-func (g *grpcCodec) ReadBody(v interface{}) error {
-	if f, ok := v.(*bytes.Frame); ok {
-		return g.s.RecvMsg(f)
-	}
-	return g.s.RecvMsg(v)
-}
-
-func (g *grpcCodec) Write(m *codec.Message, v interface{}) error {
-	// if we don't have a body
-	if v != nil {
-		return g.s.SendMsg(v)
-	}
-	// write the body using the framing codec
-	return g.s.SendMsg(&bytes.Frame{Data: m.Body})
-}
-
-func (g *grpcCodec) Close() error {
-	return g.s.CloseSend()
-}
-
-func (g *grpcCodec) String() string {
-	return g.c.Name()
-}

client/grpc/error.go

@@ -1,39 +0,0 @@
-package grpc
-
-import (
-	"github.com/asim/go-micro/v3/errors"
-	"google.golang.org/grpc/status"
-)
-
-func microError(err error) error {
-	// no error
-	switch err {
-	case nil:
-		return nil
-	}
-
-	if verr, ok := err.(*errors.Error); ok {
-		return verr
-	}
-
-	// grpc error
-	s, ok := status.FromError(err)
-	if !ok {
-		return err
-	}
-
-	// return first error from details
-	if details := s.Details(); len(details) > 0 {
-		if verr, ok := details[0].(error); ok {
-			return microError(verr)
-		}
-	}
-
-	// try to decode micro *errors.Error
-	if e := errors.Parse(s.Message()); e.Code > 0 {
-		return e // actually a micro error
-	}
-
-	// fallback
-	return errors.InternalServerError("go.micro.client", s.Message())
-}

client/grpc/grpc.go

@@ -1,728 +0,0 @@
-// Package grpc provides a gRPC client
-package grpc
-
-import (
-	"context"
-	"crypto/tls"
-	"fmt"
-	"net"
-	"reflect"
-	"strings"
-	"sync/atomic"
-	"time"
-
-	"github.com/asim/go-micro/v3/broker"
-	"github.com/asim/go-micro/v3/client"
-	raw "github.com/asim/go-micro/v3/codec/bytes"
-	"github.com/asim/go-micro/v3/errors"
-	"github.com/asim/go-micro/v3/metadata"
-
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/credentials"
-	"google.golang.org/grpc/encoding"
-	gmetadata "google.golang.org/grpc/metadata"
-)
-
-type grpcClient struct {
-	opts client.Options
-	pool *pool
-	once atomic.Value
-}
-
-func init() {
-	encoding.RegisterCodec(wrapCodec{jsonCodec{}})
-	encoding.RegisterCodec(wrapCodec{protoCodec{}})
-	encoding.RegisterCodec(wrapCodec{bytesCodec{}})
-}
-
-// secure returns the dial option for whether its a secure or insecure connection
-func (g *grpcClient) secure(addr string) grpc.DialOption {
-	// first we check if theres'a  tls config
-	if g.opts.Context != nil {
-		if v := g.opts.Context.Value(tlsAuth{}); v != nil {
-			tls := v.(*tls.Config)
-			creds := credentials.NewTLS(tls)
-			// return tls config if it exists
-			return grpc.WithTransportCredentials(creds)
-		}
-	}
-
-	// default config
-	tlsConfig := &tls.Config{}
-	defaultCreds := grpc.WithTransportCredentials(credentials.NewTLS(tlsConfig))
-
-	// check if the address is prepended with https
-	if strings.HasPrefix(addr, "https://") {
-		return defaultCreds
-	}
-
-	// if no port is specified or port is 443 default to tls
-	_, port, err := net.SplitHostPort(addr)
-	// assuming with no port its going to be secured
-	if port == "443" {
-		return defaultCreds
-	} else if err != nil && strings.Contains(err.Error(), "missing port in address") {
-		return defaultCreds
-	}
-
-	// other fallback to insecure
-	return grpc.WithInsecure()
-}
-
-func (g *grpcClient) call(ctx context.Context, addr string, req client.Request, rsp interface{}, opts client.CallOptions) error {
-	var header map[string]string
-
-	header = make(map[string]string)
-	if md, ok := metadata.FromContext(ctx); ok {
-		header = make(map[string]string, len(md))
-		for k, v := range md {
-			header[strings.ToLower(k)] = v
-		}
-	} else {
-		header = make(map[string]string)
-	}
-
-	// set timeout in nanoseconds
-	header["timeout"] = fmt.Sprintf("%d", opts.RequestTimeout)
-	// set the content type for the request
-	header["x-content-type"] = req.ContentType()
-
-	md := gmetadata.New(header)
-	ctx = gmetadata.NewOutgoingContext(ctx, md)
-
-	cf, err := g.newGRPCCodec(req.ContentType())
-	if err != nil {
-		return errors.InternalServerError("go.micro.client", err.Error())
-	}
-
-	maxRecvMsgSize := g.maxRecvMsgSizeValue()
-	maxSendMsgSize := g.maxSendMsgSizeValue()
-
-	var grr error
-
-	grpcDialOptions := []grpc.DialOption{
-		grpc.WithTimeout(opts.DialTimeout),
-		g.secure(addr),
-		grpc.WithDefaultCallOptions(
-			grpc.MaxCallRecvMsgSize(maxRecvMsgSize),
-			grpc.MaxCallSendMsgSize(maxSendMsgSize),
-		),
-	}
-
-	if opts := g.getGrpcDialOptions(); opts != nil {
-		grpcDialOptions = append(grpcDialOptions, opts...)
-	}
-
-	cc, err := g.pool.getConn(addr, grpcDialOptions...)
-	if err != nil {
-		return errors.InternalServerError("go.micro.client", fmt.Sprintf("Error sending request: %v", err))
-	}
-	defer func() {
-		// defer execution of release
-		g.pool.release(addr, cc, grr)
-	}()
-
-	ch := make(chan error, 1)
-
-	go func() {
-		grpcCallOptions := []grpc.CallOption{
-			grpc.ForceCodec(cf),
-			grpc.CallContentSubtype(cf.Name())}
-		if opts := g.getGrpcCallOptions(); opts != nil {
-			grpcCallOptions = append(grpcCallOptions, opts...)
-		}
-		err := cc.Invoke(ctx, methodToGRPC(req.Service(), req.Endpoint()), req.Body(), rsp, grpcCallOptions...)
-		ch <- microError(err)
-	}()
-
-	select {
-	case err := <-ch:
-		grr = err
-	case <-ctx.Done():
-		grr = errors.Timeout("go.micro.client", "%v", ctx.Err())
-	}
-
-	return grr
-}
-
-func (g *grpcClient) stream(ctx context.Context, addr string, req client.Request, rsp interface{}, opts client.CallOptions) error {
-	var header map[string]string
-
-	if md, ok := metadata.FromContext(ctx); ok {
-		header = make(map[string]string, len(md))
-		for k, v := range md {
-			header[k] = v
-		}
-	} else {
-		header = make(map[string]string)
-	}
-
-	// set timeout in nanoseconds
-	if opts.StreamTimeout > time.Duration(0) {
-		header["timeout"] = fmt.Sprintf("%d", opts.StreamTimeout)
-	}
-	// set the content type for the request
-	header["x-content-type"] = req.ContentType()
-
-	md := gmetadata.New(header)
-	ctx = gmetadata.NewOutgoingContext(ctx, md)
-
-	cf, err := g.newGRPCCodec(req.ContentType())
-	if err != nil {
-		return errors.InternalServerError("go.micro.client", err.Error())
-	}
-
-	wc := wrapCodec{cf}
-
-	grpcDialOptions := []grpc.DialOption{
-		grpc.WithTimeout(opts.DialTimeout),
-		g.secure(addr),
-	}
-
-	if opts := g.getGrpcDialOptions(); opts != nil {
-		grpcDialOptions = append(grpcDialOptions, opts...)
-	}
-
-	cc, err := g.pool.getConn(addr, grpcDialOptions...)
-	if err != nil {
-		return errors.InternalServerError("go.micro.client", fmt.Sprintf("Error sending request: %v", err))
-	}
-
-	desc := &grpc.StreamDesc{
-		StreamName:    req.Service() + req.Endpoint(),
-		ClientStreams: true,
-		ServerStreams: true,
-	}
-
-	grpcCallOptions := []grpc.CallOption{
-		grpc.ForceCodec(wc),
-		grpc.CallContentSubtype(cf.Name()),
-	}
-	if opts := g.getGrpcCallOptions(); opts != nil {
-		grpcCallOptions = append(grpcCallOptions, opts...)
-	}
-
-	var cancel context.CancelFunc
-	ctx, cancel = context.WithCancel(ctx)
-
-	st, err := cc.NewStream(ctx, desc, methodToGRPC(req.Service(), req.Endpoint()), grpcCallOptions...)
-	if err != nil {
-		// we need to cleanup as we dialled and created a context
-		// cancel the context
-		cancel()
-		// release the connection
-		g.pool.release(addr, cc, err)
-		// now return the error
-		return errors.InternalServerError("go.micro.client", fmt.Sprintf("Error creating stream: %v", err))
-	}
-
-	codec := &grpcCodec{
-		s: st,
-		c: wc,
-	}
-
-	// set request codec
-	if r, ok := req.(*grpcRequest); ok {
-		r.codec = codec
-	}
-
-	// setup the stream response
-	stream := &grpcStream{
-		ClientStream: st,
-		context:      ctx,
-		request:      req,
-		response: &response{
-			conn:   cc,
-			stream: st,
-			codec:  cf,
-			gcodec: codec,
-		},
-		conn: cc,
-		close: func(err error) {
-			// cancel the context if an error occured
-			if err != nil {
-				cancel()
-			}
-
-			// defer execution of release
-			g.pool.release(addr, cc, err)
-		},
-	}
-
-	// set the stream as the response
-	val := reflect.ValueOf(rsp).Elem()
-	val.Set(reflect.ValueOf(stream).Elem())
-	return nil
-}
-
-func (g *grpcClient) poolMaxStreams() int {
-	if g.opts.Context == nil {
-		return DefaultPoolMaxStreams
-	}
-	v := g.opts.Context.Value(poolMaxStreams{})
-	if v == nil {
-		return DefaultPoolMaxStreams
-	}
-	return v.(int)
-}
-
-func (g *grpcClient) poolMaxIdle() int {
-	if g.opts.Context == nil {
-		return DefaultPoolMaxIdle
-	}
-	v := g.opts.Context.Value(poolMaxIdle{})
-	if v == nil {
-		return DefaultPoolMaxIdle
-	}
-	return v.(int)
-}
-
-func (g *grpcClient) maxRecvMsgSizeValue() int {
-	if g.opts.Context == nil {
-		return DefaultMaxRecvMsgSize
-	}
-	v := g.opts.Context.Value(maxRecvMsgSizeKey{})
-	if v == nil {
-		return DefaultMaxRecvMsgSize
-	}
-	return v.(int)
-}
-
-func (g *grpcClient) maxSendMsgSizeValue() int {
-	if g.opts.Context == nil {
-		return DefaultMaxSendMsgSize
-	}
-	v := g.opts.Context.Value(maxSendMsgSizeKey{})
-	if v == nil {
-		return DefaultMaxSendMsgSize
-	}
-	return v.(int)
-}
-
-func (g *grpcClient) newGRPCCodec(contentType string) (encoding.Codec, error) {
-	codecs := make(map[string]encoding.Codec)
-	if g.opts.Context != nil {
-		if v := g.opts.Context.Value(codecsKey{}); v != nil {
-			codecs = v.(map[string]encoding.Codec)
-		}
-	}
-	if c, ok := codecs[contentType]; ok {
-		return wrapCodec{c}, nil
-	}
-	if c, ok := defaultGRPCCodecs[contentType]; ok {
-		return wrapCodec{c}, nil
-	}
-	return nil, fmt.Errorf("Unsupported Content-Type: %s", contentType)
-}
-
-func (g *grpcClient) Init(opts ...client.Option) error {
-	size := g.opts.PoolSize
-	ttl := g.opts.PoolTTL
-
-	for _, o := range opts {
-		o(&g.opts)
-	}
-
-	// update pool configuration if the options changed
-	if size != g.opts.PoolSize || ttl != g.opts.PoolTTL {
-		g.pool.Lock()
-		g.pool.size = g.opts.PoolSize
-		g.pool.ttl = int64(g.opts.PoolTTL.Seconds())
-		g.pool.Unlock()
-	}
-
-	return nil
-}
-
-func (g *grpcClient) Options() client.Options {
-	return g.opts
-}
-
-func (g *grpcClient) NewMessage(topic string, msg interface{}, opts ...client.MessageOption) client.Message {
-	return newGRPCEvent(topic, msg, g.opts.ContentType, opts...)
-}
-
-func (g *grpcClient) NewRequest(service, method string, req interface{}, reqOpts ...client.RequestOption) client.Request {
-	return newGRPCRequest(service, method, req, g.opts.ContentType, reqOpts...)
-}
-
-func (g *grpcClient) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
-	if req == nil {
-		return errors.InternalServerError("go.micro.client", "req is nil")
-	} else if rsp == nil {
-		return errors.InternalServerError("go.micro.client", "rsp is nil")
-	}
-	// make a copy of call opts
-	callOpts := g.opts.CallOptions
-	for _, opt := range opts {
-		opt(&callOpts)
-	}
-
-	// check if we already have a deadline
-	d, ok := ctx.Deadline()
-	if !ok {
-		// no deadline so we create a new one
-		var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, callOpts.RequestTimeout)
-		defer cancel()
-	} else {
-		// got a deadline so no need to setup context
-		// but we need to set the timeout we pass along
-		opt := client.WithRequestTimeout(time.Until(d))
-		opt(&callOpts)
-	}
-
-	// should we noop right here?
-	select {
-	case <-ctx.Done():
-		return errors.New("go.micro.client", fmt.Sprintf("%v", ctx.Err()), 408)
-	default:
-	}
-
-	// make copy of call method
-	gcall := g.call
-
-	// wrap the call in reverse
-	for i := len(callOpts.CallWrappers); i > 0; i-- {
-		gcall = callOpts.CallWrappers[i-1](gcall)
-	}
-
-	// use the router passed as a call option, or fallback to the rpc clients router
-	if callOpts.Router == nil {
-		callOpts.Router = g.opts.Router
-	}
-
-	if callOpts.Selector == nil {
-		callOpts.Selector = g.opts.Selector
-	}
-
-	// inject proxy address
-	// TODO: don't even bother using Lookup/Select in this case
-	if len(g.opts.Proxy) > 0 {
-		callOpts.Address = []string{g.opts.Proxy}
-	}
-
-	// lookup the route to send the reques to
-	// TODO apply any filtering here
-	routes, err := g.opts.Lookup(ctx, req, callOpts)
-	if err != nil {
-		return errors.InternalServerError("go.micro.client", err.Error())
-	}
-
-	// balance the list of nodes
-	next, err := callOpts.Selector.Select(routes)
-	if err != nil {
-		return err
-	}
-
-	// return errors.New("go.micro.client", "request timeout", 408)
-	call := func(i int) error {
-		// call backoff first. Someone may want an initial start delay
-		t, err := callOpts.Backoff(ctx, req, i)
-		if err != nil {
-			return errors.InternalServerError("go.micro.client", err.Error())
-		}
-
-		// only sleep if greater than 0
-		if t.Seconds() > 0 {
-			time.Sleep(t)
-		}
-
-		// get the next node
-		node := next()
-
-		// make the call
-		err = gcall(ctx, node, req, rsp, callOpts)
-
-		// record the result of the call to inform future routing decisions
-		g.opts.Selector.Record(node, err)
-
-		// try and transform the error to a go-micro error
-		if verr, ok := err.(*errors.Error); ok {
-			return verr
-		}
-
-		return err
-	}
-
-	ch := make(chan error, callOpts.Retries+1)
-	var gerr error
-
-	for i := 0; i <= callOpts.Retries; i++ {
-		go func(i int) {
-			ch <- call(i)
-		}(i)
-
-		select {
-		case <-ctx.Done():
-			return errors.New("go.micro.client", fmt.Sprintf("%v", ctx.Err()), 408)
-		case err := <-ch:
-			// if the call succeeded lets bail early
-			if err == nil {
-				return nil
-			}
-
-			retry, rerr := callOpts.Retry(ctx, req, i, err)
-			if rerr != nil {
-				return rerr
-			}
-
-			if !retry {
-				return err
-			}
-
-			gerr = err
-		}
-	}
-
-	return gerr
-}
-
-func (g *grpcClient) Stream(ctx context.Context, req client.Request, opts ...client.CallOption) (client.Stream, error) {
-	// make a copy of call opts
-	callOpts := g.opts.CallOptions
-	for _, opt := range opts {
-		opt(&callOpts)
-	}
-
-	// #200 - streams shouldn't have a request timeout set on the context
-
-	// should we noop right here?
-	select {
-	case <-ctx.Done():
-		return nil, errors.New("go.micro.client", fmt.Sprintf("%v", ctx.Err()), 408)
-	default:
-	}
-
-	// make a copy of stream
-	gstream := g.stream
-
-	// wrap the call in reverse
-	for i := len(callOpts.CallWrappers); i > 0; i-- {
-		gstream = callOpts.CallWrappers[i-1](gstream)
-	}
-
-	// use the router passed as a call option, or fallback to the rpc clients router
-	if callOpts.Router == nil {
-		callOpts.Router = g.opts.Router
-	}
-
-	if callOpts.Selector == nil {
-		callOpts.Selector = g.opts.Selector
-	}
-
-	// inject proxy address
-	// TODO: don't even bother using Lookup/Select in this case
-	if len(g.opts.Proxy) > 0 {
-		callOpts.Address = []string{g.opts.Proxy}
-	}
-
-	// lookup the route to send the reques to
-	// TODO: move to internal lookup func
-	routes, err := g.opts.Lookup(ctx, req, callOpts)
-	if err != nil {
-		return nil, errors.InternalServerError("go.micro.client", err.Error())
-	}
-
-	// balance the list of nodes
-	next, err := callOpts.Selector.Select(routes)
-	if err != nil {
-		return nil, err
-	}
-
-	call := func(i int) (client.Stream, error) {
-		// call backoff first. Someone may want an initial start delay
-		t, err := callOpts.Backoff(ctx, req, i)
-		if err != nil {
-			return nil, errors.InternalServerError("go.micro.client", err.Error())
-		}
-
-		// only sleep if greater than 0
-		if t.Seconds() > 0 {
-			time.Sleep(t)
-		}
-
-		// get the next node
-		node := next()
-
-		// make the call
-		stream := &grpcStream{}
-		err = g.stream(ctx, node, req, stream, callOpts)
-
-		// record the result of the call to inform future routing decisions
-		g.opts.Selector.Record(node, err)
-
-		// try and transform the error to a go-micro error
-		if verr, ok := err.(*errors.Error); ok {
-			return nil, verr
-		}
-
-		g.opts.Selector.Record(node, err)
-		return stream, err
-	}
-
-	type response struct {
-		stream client.Stream
-		err    error
-	}
-
-	ch := make(chan response, callOpts.Retries+1)
-	var grr error
-
-	for i := 0; i <= callOpts.Retries; i++ {
-		go func(i int) {
-			s, err := call(i)
-			ch <- response{s, err}
-		}(i)
-
-		select {
-		case <-ctx.Done():
-			return nil, errors.New("go.micro.client", fmt.Sprintf("%v", ctx.Err()), 408)
-		case rsp := <-ch:
-			// if the call succeeded lets bail early
-			if rsp.err == nil {
-				return rsp.stream, nil
-			}
-
-			retry, rerr := callOpts.Retry(ctx, req, i, grr)
-			if rerr != nil {
-				return nil, rerr
-			}
-
-			if !retry {
-				return nil, rsp.err
-			}
-
-			grr = rsp.err
-		}
-	}
-
-	return nil, grr
-}
-
-func (g *grpcClient) Publish(ctx context.Context, p client.Message, opts ...client.PublishOption) error {
-	var options client.PublishOptions
-	var body []byte
-
-	// fail early on connect error
-	if !g.once.Load().(bool) {
-		if err := g.opts.Broker.Connect(); err != nil {
-			return errors.InternalServerError("go.micro.client", err.Error())
-		}
-		g.once.Store(true)
-	}
-
-	for _, o := range opts {
-		o(&options)
-	}
-
-	md, ok := metadata.FromContext(ctx)
-	if !ok {
-		md = make(map[string]string)
-	}
-	md["Content-Type"] = p.ContentType()
-	md["Micro-Topic"] = p.Topic()
-
-	// passed in raw data
-	if d, ok := p.Payload().(*raw.Frame); ok {
-		body = d.Data
-	} else {
-		// use codec for payload
-		cf, err := g.newGRPCCodec(p.ContentType())
-		if err != nil {
-			return errors.InternalServerError("go.micro.client", err.Error())
-		}
-		// set the body
-		b, err := cf.Marshal(p.Payload())
-		if err != nil {
-			return errors.InternalServerError("go.micro.client", err.Error())
-		}
-		body = b
-	}
-
-	topic := p.Topic()
-
-	// get the exchange
-	if len(options.Exchange) > 0 {
-		topic = options.Exchange
-	}
-
-	return g.opts.Broker.Publish(topic, &broker.Message{
-		Header: md,
-		Body:   body,
-	}, broker.PublishContext(options.Context))
-}
-
-func (g *grpcClient) String() string {
-	return "grpc"
-}
-
-func (g *grpcClient) getGrpcDialOptions() []grpc.DialOption {
-	if g.opts.CallOptions.Context == nil {
-		return nil
-	}
-
-	v := g.opts.CallOptions.Context.Value(grpcDialOptions{})
-
-	if v == nil {
-		return nil
-	}
-
-	opts, ok := v.([]grpc.DialOption)
-
-	if !ok {
-		return nil
-	}
-
-	return opts
-}
-
-func (g *grpcClient) getGrpcCallOptions() []grpc.CallOption {
-	if g.opts.CallOptions.Context == nil {
-		return nil
-	}
-
-	v := g.opts.CallOptions.Context.Value(grpcCallOptions{})
-
-	if v == nil {
-		return nil
-	}
-
-	opts, ok := v.([]grpc.CallOption)
-
-	if !ok {
-		return nil
-	}
-
-	return opts
-}
-
-func newClient(opts ...client.Option) client.Client {
-	options := client.NewOptions()
-	// default content type for grpc
-	options.ContentType = "application/grpc+proto"
-
-	for _, o := range opts {
-		o(&options)
-	}
-
-	rc := &grpcClient{
-		opts: options,
-	}
-	rc.once.Store(false)
-
-	rc.pool = newPool(options.PoolSize, options.PoolTTL, rc.poolMaxIdle(), rc.poolMaxStreams())
-
-	c := client.Client(rc)
-
-	// wrap in reverse
-	for i := len(options.Wrappers); i > 0; i-- {
-		c = options.Wrappers[i-1](c)
-	}
-
-	return c
-}
-
-func NewClient(opts ...client.Option) client.Client {
-	return newClient(opts...)
-}

client/grpc/grpc_pool.go

@@ -1,218 +0,0 @@
-package grpc
-
-import (
-	"sync"
-	"time"
-
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/connectivity"
-)
-
-type pool struct {
-	size int
-	ttl  int64
-
-	//  max streams on a *poolConn
-	maxStreams int
-	//  max idle conns
-	maxIdle int
-
-	sync.Mutex
-	conns map[string]*streamsPool
-}
-
-type streamsPool struct {
-	//  head of list
-	head *poolConn
-	//  busy conns list
-	busy *poolConn
-	//  the siza of list
-	count int
-	//  idle conn
-	idle int
-}
-
-type poolConn struct {
-	//  grpc conn
-	*grpc.ClientConn
-	err  error
-	addr string
-
-	//  pool and streams pool
-	pool    *pool
-	sp      *streamsPool
-	streams int
-	created int64
-
-	//  list
-	pre  *poolConn
-	next *poolConn
-	in   bool
-}
-
-func newPool(size int, ttl time.Duration, idle int, ms int) *pool {
-	if ms <= 0 {
-		ms = 1
-	}
-	if idle < 0 {
-		idle = 0
-	}
-	return &pool{
-		size:       size,
-		ttl:        int64(ttl.Seconds()),
-		maxStreams: ms,
-		maxIdle:    idle,
-		conns:      make(map[string]*streamsPool),
-	}
-}
-
-func (p *pool) getConn(addr string, opts ...grpc.DialOption) (*poolConn, error) {
-	now := time.Now().Unix()
-	p.Lock()
-	sp, ok := p.conns[addr]
-	if !ok {
-		sp = &streamsPool{head: &poolConn{}, busy: &poolConn{}, count: 0, idle: 0}
-		p.conns[addr] = sp
-	}
-	//  while we have conns check streams and then return one
-	//  otherwise we'll create a new conn
-	conn := sp.head.next
-	for conn != nil {
-		//  check conn state
-		// https://github.com/grpc/grpc/blob/master/doc/connectivity-semantics-and-api.md
-		switch conn.GetState() {
-		case connectivity.Connecting:
-			conn = conn.next
-			continue
-		case connectivity.Shutdown:
-			next := conn.next
-			if conn.streams == 0 {
-				removeConn(conn)
-				sp.idle--
-			}
-			conn = next
-			continue
-		case connectivity.TransientFailure:
-			next := conn.next
-			if conn.streams == 0 {
-				removeConn(conn)
-				conn.ClientConn.Close()
-				sp.idle--
-			}
-			conn = next
-			continue
-		case connectivity.Ready:
-		case connectivity.Idle:
-		}
-		//  a old conn
-		if now-conn.created > p.ttl {
-			next := conn.next
-			if conn.streams == 0 {
-				removeConn(conn)
-				conn.ClientConn.Close()
-				sp.idle--
-			}
-			conn = next
-			continue
-		}
-		//  a busy conn
-		if conn.streams >= p.maxStreams {
-			next := conn.next
-			removeConn(conn)
-			addConnAfter(conn, sp.busy)
-			conn = next
-			continue
-		}
-		//  a idle conn
-		if conn.streams == 0 {
-			sp.idle--
-		}
-		//  a good conn
-		conn.streams++
-		p.Unlock()
-		return conn, nil
-	}
-	p.Unlock()
-
-	//  create new conn
-	cc, err := grpc.Dial(addr, opts...)
-	if err != nil {
-		return nil, err
-	}
-	conn = &poolConn{cc, nil, addr, p, sp, 1, time.Now().Unix(), nil, nil, false}
-
-	//  add conn to streams pool
-	p.Lock()
-	if sp.count < p.size {
-		addConnAfter(conn, sp.head)
-	}
-	p.Unlock()
-
-	return conn, nil
-}
-
-func (p *pool) release(addr string, conn *poolConn, err error) {
-	p.Lock()
-	p, sp, created := conn.pool, conn.sp, conn.created
-	//  try to add conn
-	if !conn.in && sp.count < p.size {
-		addConnAfter(conn, sp.head)
-	}
-	if !conn.in {
-		p.Unlock()
-		conn.ClientConn.Close()
-		return
-	}
-	//  a busy conn
-	if conn.streams >= p.maxStreams {
-		removeConn(conn)
-		addConnAfter(conn, sp.head)
-	}
-	conn.streams--
-	//  if streams == 0, we can do something
-	if conn.streams == 0 {
-		//  1. it has errored
-		//  2. too many idle conn or
-		//  3. conn is too old
-		now := time.Now().Unix()
-		if err != nil || sp.idle >= p.maxIdle || now-created > p.ttl {
-			removeConn(conn)
-			p.Unlock()
-			conn.ClientConn.Close()
-			return
-		}
-		sp.idle++
-	}
-	p.Unlock()
-	return
-}
-
-func (conn *poolConn) Close() {
-	conn.pool.release(conn.addr, conn, conn.err)
-}
-
-func removeConn(conn *poolConn) {
-	if conn.pre != nil {
-		conn.pre.next = conn.next
-	}
-	if conn.next != nil {
-		conn.next.pre = conn.pre
-	}
-	conn.pre = nil
-	conn.next = nil
-	conn.in = false
-	conn.sp.count--
-	return
-}
-
-func addConnAfter(conn *poolConn, after *poolConn) {
-	conn.next = after.next
-	conn.pre = after
-	if after.next != nil {
-		after.next.pre = conn
-	}
-	after.next = conn
-	conn.in = true
-	conn.sp.count++
-	return
-}

client/grpc/grpc_pool_test.go

@@ -1,64 +0,0 @@
-package grpc
-
-import (
-	"context"
-	"net"
-	"testing"
-	"time"
-
-	"google.golang.org/grpc"
-	pgrpc "google.golang.org/grpc"
-	pb "google.golang.org/grpc/examples/helloworld/helloworld"
-)
-
-func testPool(t *testing.T, size int, ttl time.Duration, idle int, ms int) {
-	// setup server
-	l, err := net.Listen("tcp", ":0")
-	if err != nil {
-		t.Fatalf("failed to listen: %v", err)
-	}
-	defer l.Close()
-
-	s := pgrpc.NewServer()
-	pb.RegisterGreeterServer(s, &greeterServer{})
-
-	go s.Serve(l)
-	defer s.Stop()
-
-	// zero pool
-	p := newPool(size, ttl, idle, ms)
-
-	for i := 0; i < 10; i++ {
-		// get a conn
-		cc, err := p.getConn(l.Addr().String(), grpc.WithInsecure())
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		rsp := pb.HelloReply{}
-
-		err = cc.Invoke(context.TODO(), "/helloworld.Greeter/SayHello", &pb.HelloRequest{Name: "John"}, &rsp)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if rsp.Message != "Hello John" {
-			t.Fatalf("Got unexpected response %v", rsp.Message)
-		}
-
-		// release the conn
-		p.release(l.Addr().String(), cc, nil)
-
-		p.Lock()
-		if i := p.conns[l.Addr().String()].count; i > size {
-			p.Unlock()
-			t.Fatalf("pool size %d is greater than expected %d", i, size)
-		}
-		p.Unlock()
-	}
-}
-
-func TestGRPCPool(t *testing.T) {
-	testPool(t, 0, time.Minute, 10, 2)
-	testPool(t, 2, time.Minute, 10, 1)
-}

client/grpc/grpc_test.go

@@ -1,108 +0,0 @@
-package grpc
-
-import (
-	"context"
-	"net"
-	"testing"
-
-	"github.com/asim/go-micro/v3/client"
-	"github.com/asim/go-micro/v3/errors"
-	"github.com/asim/go-micro/v3/registry"
-	"github.com/asim/go-micro/v3/registry/memory"
-	"github.com/asim/go-micro/v3/router"
-	regRouter "github.com/asim/go-micro/v3/router/registry"
-	pgrpc "google.golang.org/grpc"
-	pb "google.golang.org/grpc/examples/helloworld/helloworld"
-)
-
-// server is used to implement helloworld.GreeterServer.
-type greeterServer struct{}
-
-// SayHello implements helloworld.GreeterServer
-func (g *greeterServer) SayHello(ctx context.Context, in *pb.HelloRequest) (*pb.HelloReply, error) {
-	if in.Name == "Error" {
-		return nil, &errors.Error{Id: "1", Code: 99, Detail: "detail"}
-	}
-	return &pb.HelloReply{Message: "Hello " + in.Name}, nil
-}
-
-func TestGRPCClient(t *testing.T) {
-	l, err := net.Listen("tcp", ":0")
-	if err != nil {
-		t.Fatalf("failed to listen: %v", err)
-	}
-	defer l.Close()
-
-	s := pgrpc.NewServer()
-	pb.RegisterGreeterServer(s, &greeterServer{})
-
-	go s.Serve(l)
-	defer s.Stop()
-
-	// create mock registry
-	r := memory.NewRegistry()
-
-	// register service
-	r.Register(&registry.Service{
-		Name:    "helloworld",
-		Version: "test",
-		Nodes: []*registry.Node{
-			{
-				Id:      "test-1",
-				Address: l.Addr().String(),
-				Metadata: map[string]string{
-					"protocol": "grpc",
-				},
-			},
-		},
-	})
-
-	// create router
-	rtr := regRouter.NewRouter(router.Registry(r))
-
-	// create client
-	c := NewClient(client.Router(rtr))
-
-	testMethods := []string{
-		"/helloworld.Greeter/SayHello",
-		"Greeter.SayHello",
-	}
-
-	for _, method := range testMethods {
-		req := c.NewRequest("helloworld", method, &pb.HelloRequest{
-			Name: "John",
-		})
-
-		rsp := pb.HelloReply{}
-
-		err = c.Call(context.TODO(), req, &rsp)
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		if rsp.Message != "Hello John" {
-			t.Fatalf("Got unexpected response %v", rsp.Message)
-		}
-	}
-
-	req := c.NewRequest("helloworld", "/helloworld.Greeter/SayHello", &pb.HelloRequest{
-		Name: "Error",
-	})
-
-	rsp := pb.HelloReply{}
-
-	err = c.Call(context.TODO(), req, &rsp)
-	if err == nil {
-		t.Fatal("nil error received")
-	}
-
-	verr, ok := err.(*errors.Error)
-	if !ok {
-		t.Fatalf("invalid error received %#+v\n", err)
-	}
-
-	if verr.Code != 99 && verr.Id != "1" && verr.Detail != "detail" {
-		t.Fatalf("invalid error received %#+v\n", verr)
-	}
-
-}

client/grpc/message.go

@@ -1,40 +0,0 @@
-package grpc
-
-import (
-	"github.com/asim/go-micro/v3/client"
-)
-
-type grpcEvent struct {
-	topic       string
-	contentType string
-	payload     interface{}
-}
-
-func newGRPCEvent(topic string, payload interface{}, contentType string, opts ...client.MessageOption) client.Message {
-	var options client.MessageOptions
-	for _, o := range opts {
-		o(&options)
-	}
-
-	if len(options.ContentType) > 0 {
-		contentType = options.ContentType
-	}
-
-	return &grpcEvent{
-		payload:     payload,
-		topic:       topic,
-		contentType: contentType,
-	}
-}
-
-func (g *grpcEvent) ContentType() string {
-	return g.contentType
-}
-
-func (g *grpcEvent) Topic() string {
-	return g.topic
-}
-
-func (g *grpcEvent) Payload() interface{} {
-	return g.payload
-}

client/grpc/options.go

@@ -1,131 +0,0 @@
-// Package grpc provides a gRPC options
-package grpc
-
-import (
-	"context"
-	"crypto/tls"
-
-	"github.com/asim/go-micro/v3/client"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/encoding"
-)
-
-var (
-	// DefaultPoolMaxStreams maximum streams on a connectioin
-	// (20)
-	DefaultPoolMaxStreams = 20
-
-	// DefaultPoolMaxIdle maximum idle conns of a pool
-	// (50)
-	DefaultPoolMaxIdle = 50
-
-	// DefaultMaxRecvMsgSize maximum message that client can receive
-	// (4 MB).
-	DefaultMaxRecvMsgSize = 1024 * 1024 * 4
-
-	// DefaultMaxSendMsgSize maximum message that client can send
-	// (4 MB).
-	DefaultMaxSendMsgSize = 1024 * 1024 * 4
-)
-
-type poolMaxStreams struct{}
-type poolMaxIdle struct{}
-type codecsKey struct{}
-type tlsAuth struct{}
-type maxRecvMsgSizeKey struct{}
-type maxSendMsgSizeKey struct{}
-type grpcDialOptions struct{}
-type grpcCallOptions struct{}
-
-// maximum streams on a connectioin
-func PoolMaxStreams(n int) client.Option {
-	return func(o *client.Options) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		o.Context = context.WithValue(o.Context, poolMaxStreams{}, n)
-	}
-}
-
-// maximum idle conns of a pool
-func PoolMaxIdle(d int) client.Option {
-	return func(o *client.Options) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		o.Context = context.WithValue(o.Context, poolMaxIdle{}, d)
-	}
-}
-
-// gRPC Codec to be used to encode/decode requests for a given content type
-func Codec(contentType string, c encoding.Codec) client.Option {
-	return func(o *client.Options) {
-		codecs := make(map[string]encoding.Codec)
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		if v := o.Context.Value(codecsKey{}); v != nil {
-			codecs = v.(map[string]encoding.Codec)
-		}
-		codecs[contentType] = c
-		o.Context = context.WithValue(o.Context, codecsKey{}, codecs)
-	}
-}
-
-// AuthTLS should be used to setup a secure authentication using TLS
-func AuthTLS(t *tls.Config) client.Option {
-	return func(o *client.Options) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		o.Context = context.WithValue(o.Context, tlsAuth{}, t)
-	}
-}
-
-//
-// MaxRecvMsgSize set the maximum size of message that client can receive.
-//
-func MaxRecvMsgSize(s int) client.Option {
-	return func(o *client.Options) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		o.Context = context.WithValue(o.Context, maxRecvMsgSizeKey{}, s)
-	}
-}
-
-//
-// MaxSendMsgSize set the maximum size of message that client can send.
-//
-func MaxSendMsgSize(s int) client.Option {
-	return func(o *client.Options) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		o.Context = context.WithValue(o.Context, maxSendMsgSizeKey{}, s)
-	}
-}
-
-//
-// DialOptions to be used to configure gRPC dial options
-//
-func DialOptions(opts ...grpc.DialOption) client.CallOption {
-	return func(o *client.CallOptions) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		o.Context = context.WithValue(o.Context, grpcDialOptions{}, opts)
-	}
-}
-
-//
-// CallOptions to be used to configure gRPC call options
-//
-func CallOptions(opts ...grpc.CallOption) client.CallOption {
-	return func(o *client.CallOptions) {
-		if o.Context == nil {
-			o.Context = context.Background()
-		}
-		o.Context = context.WithValue(o.Context, grpcCallOptions{}, opts)
-	}
-}

client/grpc/request.go

@@ -1,87 +0,0 @@
-package grpc
-
-import (
-	"fmt"
-	"strings"
-
-	"github.com/asim/go-micro/v3/client"
-	"github.com/asim/go-micro/v3/codec"
-)
-
-type grpcRequest struct {
-	service     string
-	method      string
-	contentType string
-	request     interface{}
-	opts        client.RequestOptions
-	codec       codec.Codec
-}
-
-// service Struct.Method /service.Struct/Method
-func methodToGRPC(service, method string) string {
-	// no method or already grpc method
-	if len(method) == 0 || method[0] == '/' {
-		return method
-	}
-
-	// assume method is Foo.Bar
-	mParts := strings.Split(method, ".")
-	if len(mParts) != 2 {
-		return method
-	}
-
-	if len(service) == 0 {
-		return fmt.Sprintf("/%s/%s", mParts[0], mParts[1])
-	}
-
-	// return /pkg.Foo/Bar
-	return fmt.Sprintf("/%s.%s/%s", service, mParts[0], mParts[1])
-}
-
-func newGRPCRequest(service, method string, request interface{}, contentType string, reqOpts ...client.RequestOption) client.Request {
-	var opts client.RequestOptions
-	for _, o := range reqOpts {
-		o(&opts)
-	}
-
-	// set the content-type specified
-	if len(opts.ContentType) > 0 {
-		contentType = opts.ContentType
-	}
-
-	return &grpcRequest{
-		service:     service,
-		method:      method,
-		request:     request,
-		contentType: contentType,
-		opts:        opts,
-	}
-}
-
-func (g *grpcRequest) ContentType() string {
-	return g.contentType
-}
-
-func (g *grpcRequest) Service() string {
-	return g.service
-}
-
-func (g *grpcRequest) Method() string {
-	return g.method
-}
-
-func (g *grpcRequest) Endpoint() string {
-	return g.method
-}
-
-func (g *grpcRequest) Codec() codec.Writer {
-	return g.codec
-}
-
-func (g *grpcRequest) Body() interface{} {
-	return g.request
-}
-
-func (g *grpcRequest) Stream() bool {
-	return g.opts.Stream
-}

client/grpc/request_test.go

@@ -1,41 +0,0 @@
-package grpc
-
-import (
-	"testing"
-)
-
-func TestMethodToGRPC(t *testing.T) {
-	testData := []struct {
-		service string
-		method  string
-		expect  string
-	}{
-		{
-			"helloworld",
-			"Greeter.SayHello",
-			"/helloworld.Greeter/SayHello",
-		},
-		{
-			"helloworld",
-			"/helloworld.Greeter/SayHello",
-			"/helloworld.Greeter/SayHello",
-		},
-		{
-			"",
-			"/helloworld.Greeter/SayHello",
-			"/helloworld.Greeter/SayHello",
-		},
-		{
-			"",
-			"Greeter.SayHello",
-			"/Greeter/SayHello",
-		},
-	}
-
-	for _, d := range testData {
-		method := methodToGRPC(d.service, d.method)
-		if method != d.expect {
-			t.Fatalf("expected %s got %s", d.expect, method)
-		}
-	}
-}

client/grpc/response.go

@@ -1,44 +0,0 @@
-package grpc
-
-import (
-	"strings"
-
-	"github.com/asim/go-micro/v3/codec"
-	"github.com/asim/go-micro/v3/codec/bytes"
-	"google.golang.org/grpc"
-	"google.golang.org/grpc/encoding"
-)
-
-type response struct {
-	conn   *poolConn
-	stream grpc.ClientStream
-	codec  encoding.Codec
-	gcodec codec.Codec
-}
-
-// Read the response
-func (r *response) Codec() codec.Reader {
-	return r.gcodec
-}
-
-// read the header
-func (r *response) Header() map[string]string {
-	md, err := r.stream.Header()
-	if err != nil {
-		return map[string]string{}
-	}
-	hdr := make(map[string]string, len(md))
-	for k, v := range md {
-		hdr[k] = strings.Join(v, ",")
-	}
-	return hdr
-}
-
-// Read the undecoded response
-func (r *response) Read() ([]byte, error) {
-	f := &bytes.Frame{}
-	if err := r.gcodec.ReadBody(f); err != nil {
-		return nil, err
-	}
-	return f.Data, nil
-}

client/grpc/stream.go

@@ -1,94 +0,0 @@
-package grpc
-
-import (
-	"context"
-	"io"
-	"sync"
-
-	"github.com/asim/go-micro/v3/client"
-	"google.golang.org/grpc"
-)
-
-// Implements the streamer interface
-type grpcStream struct {
-	// embed so we can access if need be
-	grpc.ClientStream
-
-	sync.RWMutex
-	closed   bool
-	err      error
-	conn     *poolConn
-	request  client.Request
-	response client.Response
-	context  context.Context
-	close    func(err error)
-}
-
-func (g *grpcStream) Context() context.Context {
-	return g.context
-}
-
-func (g *grpcStream) Request() client.Request {
-	return g.request
-}
-
-func (g *grpcStream) Response() client.Response {
-	return g.response
-}
-
-func (g *grpcStream) Send(msg interface{}) error {
-	if err := g.ClientStream.SendMsg(msg); err != nil {
-		g.setError(err)
-		return err
-	}
-	return nil
-}
-
-func (g *grpcStream) Recv(msg interface{}) (err error) {
-	defer g.setError(err)
-
-	if err = g.ClientStream.RecvMsg(msg); err != nil {
-		// #202 - inconsistent gRPC stream behavior
-		// the only way to tell if the stream is done is when we get a EOF on the Recv
-		// here we should close the underlying gRPC ClientConn
-		closeErr := g.Close()
-		if err == io.EOF && closeErr != nil {
-			err = closeErr
-		}
-
-		return err
-	}
-
-	return
-}
-
-func (g *grpcStream) Error() error {
-	g.RLock()
-	defer g.RUnlock()
-	return g.err
-}
-
-func (g *grpcStream) setError(e error) {
-	g.Lock()
-	g.err = e
-	g.Unlock()
-}
-
-// Close the gRPC send stream
-// #202 - inconsistent gRPC stream behavior
-// The underlying gRPC stream should not be closed here since the
-// stream should still be able to receive after this function call
-// TODO: should the conn be closed in another way?
-func (g *grpcStream) Close() error {
-	g.Lock()
-	defer g.Unlock()
-
-	if g.closed {
-		return nil
-	}
-
-	// close the connection
-	g.closed = true
-	g.close(g.err)
-	return g.ClientStream.CloseSend()
-}

client/lookup.go

@@ -4,8 +4,8 @@ import (
 	"context"
 	"sort"
 
-	"github.com/asim/go-micro/v3/errors"
-	"github.com/asim/go-micro/v3/router"
+	"github.com/unistack-org/micro/v3/errors"
+	"github.com/unistack-org/micro/v3/router"
 )
 
 // LookupFunc is used to lookup routes for a service
@@ -18,17 +18,21 @@ func LookupRoute(ctx context.Context, req Request, opts CallOptions) ([]string,
 		return opts.Address, nil
 	}
 
+	if opts.Router == nil {
+		return nil, router.ErrRouteNotFound
+	}
+
 	// construct the router query
-	query := []router.LookupOption{}
+	query := []router.QueryOption{router.QueryService(req.Service())}
 
 	// if a custom network was requested, pass this to the router. By default the router will use it's
 	// own network, which is set during initialisation.
 	if len(opts.Network) > 0 {
-		query = append(query, router.LookupNetwork(opts.Network))
+		query = append(query, router.QueryNetwork(opts.Network))
 	}
 
 	// lookup the routes which can be used to execute the request
-	routes, err := opts.Router.Lookup(req.Service(), query...)
+	routes, err := opts.Router.Lookup(query...)
 	if err == router.ErrRouteNotFound {
 		return nil, errors.InternalServerError("go.micro.client", "service %s: %s", req.Service(), err.Error())
 	} else if err != nil {
@@ -40,8 +44,7 @@ func LookupRoute(ctx context.Context, req Request, opts CallOptions) ([]string,
 		return routes[i].Metric < routes[j].Metric
 	})
 
-	var addrs []string
-
+	addrs := make([]string, 0, len(routes))
 	for _, route := range routes {
 		addrs = append(addrs, route.Address)
 	}

client/mucp/common_test.go

@@ -1,59 +0,0 @@
-package mucp
-
-import (
-	"github.com/asim/go-micro/v3/registry"
-)
-
-var (
-	// mock data
-	testData = map[string][]*registry.Service{
-		"foo": {
-			{
-				Name:    "foo",
-				Version: "1.0.0",
-				Nodes: []*registry.Node{
-					{
-						Id:      "foo-1.0.0-123",
-						Address: "localhost:9999",
-						Metadata: map[string]string{
-							"protocol": "mucp",
-						},
-					},
-					{
-						Id:      "foo-1.0.0-321",
-						Address: "localhost:9999",
-						Metadata: map[string]string{
-							"protocol": "mucp",
-						},
-					},
-				},
-			},
-			{
-				Name:    "foo",
-				Version: "1.0.1",
-				Nodes: []*registry.Node{
-					{
-						Id:      "foo-1.0.1-321",
-						Address: "localhost:6666",
-						Metadata: map[string]string{
-							"protocol": "mucp",
-						},
-					},
-				},
-			},
-			{
-				Name:    "foo",
-				Version: "1.0.3",
-				Nodes: []*registry.Node{
-					{
-						Id:      "foo-1.0.3-345",
-						Address: "localhost:8888",
-						Metadata: map[string]string{
-							"protocol": "mucp",
-						},
-					},
-				},
-			},
-		},
-	}
-)

client/mucp/mucp.go

@@ -1,626 +0,0 @@
-// Package mucp provides a transport agnostic RPC client
-package mucp
-
-import (
-	"context"
-	"fmt"
-	"sync/atomic"
-	"time"
-
-	"github.com/asim/go-micro/v3/broker"
-	"github.com/asim/go-micro/v3/client"
-	"github.com/asim/go-micro/v3/codec"
-	raw "github.com/asim/go-micro/v3/codec/bytes"
-	"github.com/asim/go-micro/v3/errors"
-	"github.com/asim/go-micro/v3/metadata"
-	"github.com/asim/go-micro/v3/network/transport"
-	"github.com/asim/go-micro/v3/util/buf"
-	"github.com/asim/go-micro/v3/util/pool"
-	"github.com/google/uuid"
-)
-
-type rpcClient struct {
-	once atomic.Value
-	opts client.Options
-	pool pool.Pool
-	seq  uint64
-}
-
-// NewClient returns a new micro client interface
-func NewClient(opt ...client.Option) client.Client {
-	opts := client.NewOptions(opt...)
-
-	p := pool.NewPool(
-		pool.Size(opts.PoolSize),
-		pool.TTL(opts.PoolTTL),
-		pool.Transport(opts.Transport),
-	)
-
-	rc := &rpcClient{
-		opts: opts,
-		pool: p,
-		seq:  0,
-	}
-	rc.once.Store(false)
-
-	c := client.Client(rc)
-
-	// wrap in reverse
-	for i := len(opts.Wrappers); i > 0; i-- {
-		c = opts.Wrappers[i-1](c)
-	}
-
-	return c
-}
-
-func (r *rpcClient) newCodec(contentType string) (codec.NewCodec, error) {
-	if c, ok := r.opts.Codecs[contentType]; ok {
-		return c, nil
-	}
-	if cf, ok := DefaultCodecs[contentType]; ok {
-		return cf, nil
-	}
-	return nil, fmt.Errorf("Unsupported Content-Type: %s", contentType)
-}
-
-func (r *rpcClient) call(ctx context.Context, addr string, req client.Request, resp interface{}, opts client.CallOptions) error {
-	msg := &transport.Message{
-		Header: make(map[string]string),
-	}
-
-	md, ok := metadata.FromContext(ctx)
-	if ok {
-		for k, v := range md {
-			// don't copy Micro-Topic header, that used for pub/sub
-			// this fix case then client uses the same context that received in subscriber
-			if k == "Micro-Topic" {
-				continue
-			}
-			msg.Header[k] = v
-		}
-	}
-
-	// set timeout in nanoseconds
-	msg.Header["Timeout"] = fmt.Sprintf("%d", opts.RequestTimeout)
-	// set the content type for the request
-	msg.Header["Content-Type"] = req.ContentType()
-	// set the accept header
-	msg.Header["Accept"] = req.ContentType()
-
-	cf, err := r.newCodec(req.ContentType())
-	if err != nil {
-		return errors.InternalServerError("go.micro.client", err.Error())
-	}
-
-	dOpts := []transport.DialOption{
-		transport.WithStream(),
-	}
-
-	if opts.DialTimeout >= 0 {
-		dOpts = append(dOpts, transport.WithTimeout(opts.DialTimeout))
-	}
-
-	c, err := r.pool.Get(addr, dOpts...)
-	if err != nil {
-		return errors.InternalServerError("go.micro.client", "connection error: %v", err)
-	}
-
-	seq := atomic.AddUint64(&r.seq, 1) - 1
-	codec := newRpcCodec(msg, c, cf, "")
-
-	rsp := &rpcResponse{
-		socket: c,
-		codec:  codec,
-	}
-
-	stream := &rpcStream{
-		id:       fmt.Sprintf("%v", seq),
-		context:  ctx,
-		request:  req,
-		response: rsp,
-		codec:    codec,
-		closed:   make(chan bool),
-		release:  func(err error) { r.pool.Release(c, err) },
-		sendEOS:  false,
-	}
-	// close the stream on exiting this function
-	defer stream.Close()
-
-	// wait for error response
-	ch := make(chan error, 1)
-
-	go func() {
-		defer func() {
-			if r := recover(); r != nil {
-				ch <- errors.InternalServerError("go.micro.client", "panic recovered: %v", r)
-			}
-		}()
-
-		// send request
-		if err := stream.Send(req.Body()); err != nil {
-			ch <- err
-			return
-		}
-
-		// recv request
-		if err := stream.Recv(resp); err != nil {
-			ch <- err
-			return
-		}
-
-		// success
-		ch <- nil
-	}()
-
-	var grr error
-
-	select {
-	case err := <-ch:
-		return err
-	case <-ctx.Done():
-		grr = errors.Timeout("go.micro.client", fmt.Sprintf("%v", ctx.Err()))
-	}
-
-	// set the stream error
-	if grr != nil {
-		stream.Lock()
-		stream.err = grr
-		stream.Unlock()
-
-		return grr
-	}
-
-	return nil
-}
-
-func (r *rpcClient) stream(ctx context.Context, addr string, req client.Request, opts client.CallOptions) (client.Stream, error) {
-	msg := &transport.Message{
-		Header: make(map[string]string),
-	}
-
-	md, ok := metadata.FromContext(ctx)
-	if ok {
-		for k, v := range md {
-			msg.Header[k] = v
-		}
-	}
-
-	// set timeout in nanoseconds
-	if opts.StreamTimeout > time.Duration(0) {
-		msg.Header["Timeout"] = fmt.Sprintf("%d", opts.StreamTimeout)
-	}
-	// set the content type for the request
-	msg.Header["Content-Type"] = req.ContentType()
-	// set the accept header
-	msg.Header["Accept"] = req.ContentType()
-
-	cf, err := r.newCodec(req.ContentType())
-	if err != nil {
-		return nil, errors.InternalServerError("go.micro.client", err.Error())
-	}
-
-	dOpts := []transport.DialOption{
-		transport.WithStream(),
-	}
-
-	if opts.DialTimeout >= 0 {
-		dOpts = append(dOpts, transport.WithTimeout(opts.DialTimeout))
-	}
-
-	c, err := r.opts.Transport.Dial(addr, dOpts...)
-	if err != nil {
-		return nil, errors.InternalServerError("go.micro.client", "connection error: %v", err)
-	}
-
-	// increment the sequence number
-	seq := atomic.AddUint64(&r.seq, 1) - 1
-	id := fmt.Sprintf("%v", seq)
-
-	// create codec with stream id
-	codec := newRpcCodec(msg, c, cf, id)
-
-	rsp := &rpcResponse{
-		socket: c,
-		codec:  codec,
-	}
-
-	// set request codec
-	if r, ok := req.(*rpcRequest); ok {
-		r.codec = codec
-	}
-
-	stream := &rpcStream{
-		id:       id,
-		context:  ctx,
-		request:  req,
-		response: rsp,
-		codec:    codec,
-		// used to close the stream
-		closed: make(chan bool),
-		// signal the end of stream,
-		sendEOS: true,
-		// release func
-		release: func(err error) { c.Close() },
-	}
-
-	// wait for error response
-	ch := make(chan error, 1)
-
-	go func() {
-		// send the first message
-		ch <- stream.Send(req.Body())
-	}()
-
-	var grr error
-
-	select {
-	case err := <-ch:
-		grr = err
-	case <-ctx.Done():
-		grr = errors.Timeout("go.micro.client", fmt.Sprintf("%v", ctx.Err()))
-	}
-
-	if grr != nil {
-		// set the error
-		stream.Lock()
-		stream.err = grr
-		stream.Unlock()
-
-		// close the stream
-		stream.Close()
-		return nil, grr
-	}
-
-	return stream, nil
-}
-
-func (r *rpcClient) Init(opts ...client.Option) error {
-	size := r.opts.PoolSize
-	ttl := r.opts.PoolTTL
-	tr := r.opts.Transport
-
-	for _, o := range opts {
-		o(&r.opts)
-	}
-
-	// update pool configuration if the options changed
-	if size != r.opts.PoolSize || ttl != r.opts.PoolTTL || tr != r.opts.Transport {
-		// close existing pool
-		r.pool.Close()
-		// create new pool
-		r.pool = pool.NewPool(
-			pool.Size(r.opts.PoolSize),
-			pool.TTL(r.opts.PoolTTL),
-			pool.Transport(r.opts.Transport),
-		)
-	}
-
-	return nil
-}
-
-func (r *rpcClient) Options() client.Options {
-	return r.opts
-}
-
-func (r *rpcClient) Call(ctx context.Context, request client.Request, response interface{}, opts ...client.CallOption) error {
-	// make a copy of call opts
-	callOpts := r.opts.CallOptions
-	for _, opt := range opts {
-		opt(&callOpts)
-	}
-
-	// check if we already have a deadline
-	if d, ok := ctx.Deadline(); !ok {
-		// no deadline so we create a new one
-		var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, callOpts.RequestTimeout)
-		defer cancel()
-	} else {
-		// got a deadline so no need to setup context
-		// but we need to set the timeout we pass along
-		remaining := d.Sub(time.Now())
-		client.WithRequestTimeout(remaining)(&callOpts)
-	}
-
-	// should we noop right here?
-	select {
-	case <-ctx.Done():
-		return errors.Timeout("go.micro.client", fmt.Sprintf("%v", ctx.Err()))
-	default:
-	}
-
-	// make copy of call method
-	rcall := r.call
-
-	// wrap the call in reverse
-	for i := len(callOpts.CallWrappers); i > 0; i-- {
-		rcall = callOpts.CallWrappers[i-1](rcall)
-	}
-
-	// use the router passed as a call option, or fallback to the rpc clients router
-	if callOpts.Router == nil {
-		callOpts.Router = r.opts.Router
-	}
-
-	if callOpts.Selector == nil {
-		callOpts.Selector = r.opts.Selector
-	}
-
-	// inject proxy address
-	// TODO: don't even bother using Lookup/Select in this case
-	if len(r.opts.Proxy) > 0 {
-		callOpts.Address = []string{r.opts.Proxy}
-	}
-
-	// lookup the route to send the reques to
-	// TODO apply any filtering here
-	routes, err := r.opts.Lookup(ctx, request, callOpts)
-	if err != nil {
-		return errors.InternalServerError("go.micro.client", err.Error())
-	}
-
-	// balance the list of nodes
-	next, err := callOpts.Selector.Select(routes)
-	if err != nil {
-		return err
-	}
-
-	// return errors.New("go.micro.client", "request timeout", 408)
-	call := func(i int) error {
-		// call backoff first. Someone may want an initial start delay
-		t, err := callOpts.Backoff(ctx, request, i)
-		if err != nil {
-			return errors.InternalServerError("go.micro.client", "backoff error: %v", err.Error())
-		}
-
-		// only sleep if greater than 0
-		if t.Seconds() > 0 {
-			time.Sleep(t)
-		}
-
-		// get the next node
-		node := next()
-
-		// make the call
-		err = rcall(ctx, node, request, response, callOpts)
-
-		// record the result of the call to inform future routing decisions
-		r.opts.Selector.Record(node, err)
-
-		return err
-	}
-
-	// get the retries
-	retries := callOpts.Retries
-
-	// disable retries when using a proxy
-	if len(r.opts.Proxy) > 0 {
-		retries = 0
-	}
-
-	ch := make(chan error, retries+1)
-	var gerr error
-
-	for i := 0; i <= retries; i++ {
-		go func(i int) {
-			ch <- call(i)
-		}(i)
-
-		select {
-		case <-ctx.Done():
-			return errors.Timeout("go.micro.client", fmt.Sprintf("call timeout: %v", ctx.Err()))
-		case err := <-ch:
-			// if the call succeeded lets bail early
-			if err == nil {
-				return nil
-			}
-
-			retry, rerr := callOpts.Retry(ctx, request, i, err)
-			if rerr != nil {
-				return rerr
-			}
-
-			if !retry {
-				return err
-			}
-
-			gerr = err
-		}
-	}
-
-	return gerr
-}
-
-func (r *rpcClient) Stream(ctx context.Context, request client.Request, opts ...client.CallOption) (client.Stream, error) {
-	// make a copy of call opts
-	callOpts := r.opts.CallOptions
-	for _, opt := range opts {
-		opt(&callOpts)
-	}
-
-	// should we noop right here?
-	select {
-	case <-ctx.Done():
-		return nil, errors.Timeout("go.micro.client", fmt.Sprintf("%v", ctx.Err()))
-	default:
-	}
-
-	// use the router passed as a call option, or fallback to the rpc clients router
-	if callOpts.Router == nil {
-		callOpts.Router = r.opts.Router
-	}
-
-	if callOpts.Selector == nil {
-		callOpts.Selector = r.opts.Selector
-	}
-
-	// inject proxy address
-	// TODO: don't even bother using Lookup/Select in this case
-	if len(r.opts.Proxy) > 0 {
-		callOpts.Address = []string{r.opts.Proxy}
-	}
-
-	// lookup the route to send the reques to
-	// TODO apply any filtering here
-	routes, err := r.opts.Lookup(ctx, request, callOpts)
-	if err != nil {
-		return nil, errors.InternalServerError("go.micro.client", err.Error())
-	}
-
-	// balance the list of nodes
-	next, err := callOpts.Selector.Select(routes)
-	if err != nil {
-		return nil, err
-	}
-
-	call := func(i int) (client.Stream, error) {
-		// call backoff first. Someone may want an initial start delay
-		t, err := callOpts.Backoff(ctx, request, i)
-		if err != nil {
-			return nil, errors.InternalServerError("go.micro.client", "backoff error: %v", err.Error())
-		}
-
-		// only sleep if greater than 0
-		if t.Seconds() > 0 {
-			time.Sleep(t)
-		}
-
-		// get the next node
-		node := next()
-
-		// perform the call
-		stream, err := r.stream(ctx, node, request, callOpts)
-
-		// record the result of the call to inform future routing decisions
-		r.opts.Selector.Record(node, err)
-
-		return stream, err
-	}
-
-	type response struct {
-		stream client.Stream
-		err    error
-	}
-
-	// get the retries
-	retries := callOpts.Retries
-
-	// disable retries when using a proxy
-	if len(r.opts.Proxy) > 0 {
-		retries = 0
-	}
-
-	ch := make(chan response, retries+1)
-	var grr error
-
-	for i := 0; i <= retries; i++ {
-		go func(i int) {
-			s, err := call(i)
-			ch <- response{s, err}
-		}(i)
-
-		select {
-		case <-ctx.Done():
-			return nil, errors.Timeout("go.micro.client", fmt.Sprintf("call timeout: %v", ctx.Err()))
-		case rsp := <-ch:
-			// if the call succeeded lets bail early
-			if rsp.err == nil {
-				return rsp.stream, nil
-			}
-
-			retry, rerr := callOpts.Retry(ctx, request, i, rsp.err)
-			if rerr != nil {
-				return nil, rerr
-			}
-
-			if !retry {
-				return nil, rsp.err
-			}
-
-			grr = rsp.err
-		}
-	}
-
-	return nil, grr
-}
-
-func (r *rpcClient) Publish(ctx context.Context, msg client.Message, opts ...client.PublishOption) error {
-	options := client.PublishOptions{
-		Context: context.Background(),
-	}
-	for _, o := range opts {
-		o(&options)
-	}
-
-	md, ok := metadata.FromContext(ctx)
-	if !ok {
-		md = make(map[string]string)
-	}
-
-	id := uuid.New().String()
-	md["Content-Type"] = msg.ContentType()
-	md["Micro-Topic"] = msg.Topic()
-	md["Micro-Id"] = id
-
-	// set the topic
-	topic := msg.Topic()
-
-	// get the exchange
-	if len(options.Exchange) > 0 {
-		topic = options.Exchange
-	}
-
-	// encode message body
-	cf, err := r.newCodec(msg.ContentType())
-	if err != nil {
-		return errors.InternalServerError("go.micro.client", err.Error())
-	}
-
-	var body []byte
-
-	// passed in raw data
-	if d, ok := msg.Payload().(*raw.Frame); ok {
-		body = d.Data
-	} else {
-		// new buffer
-		b := buf.New(nil)
-
-		if err := cf(b).Write(&codec.Message{
-			Target: topic,
-			Type:   codec.Event,
-			Header: map[string]string{
-				"Micro-Id":    id,
-				"Micro-Topic": msg.Topic(),
-			},
-		}, msg.Payload()); err != nil {
-			return errors.InternalServerError("go.micro.client", err.Error())
-		}
-
-		// set the body
-		body = b.Bytes()
-	}
-
-	if !r.once.Load().(bool) {
-		if err = r.opts.Broker.Connect(); err != nil {
-			return errors.InternalServerError("go.micro.client", err.Error())
-		}
-		r.once.Store(true)
-	}
-
-	return r.opts.Broker.Publish(topic, &broker.Message{
-		Header: md,
-		Body:   body,
-	}, broker.PublishContext(options.Context))
-}
-
-func (r *rpcClient) NewMessage(topic string, message interface{}, opts ...client.MessageOption) client.Message {
-	return newMessage(topic, message, r.opts.ContentType, opts...)
-}
-
-func (r *rpcClient) NewRequest(service, method string, request interface{}, reqOpts ...client.RequestOption) client.Request {
-	return newRequest(service, method, request, r.opts.ContentType, reqOpts...)
-}
-
-func (r *rpcClient) String() string {
-	return "mucp"
-}

client/mucp/mucp_codec.go

@@ -1,267 +0,0 @@
-package mucp
-
-import (
-	"bytes"
-	errs "errors"
-
-	"github.com/asim/go-micro/v3/codec"
-	raw "github.com/asim/go-micro/v3/codec/bytes"
-	"github.com/asim/go-micro/v3/codec/grpc"
-	"github.com/asim/go-micro/v3/codec/json"
-	"github.com/asim/go-micro/v3/codec/jsonrpc"
-	"github.com/asim/go-micro/v3/codec/proto"
-	"github.com/asim/go-micro/v3/codec/protorpc"
-	"github.com/asim/go-micro/v3/errors"
-	"github.com/asim/go-micro/v3/network/transport"
-	"github.com/asim/go-micro/v3/registry"
-)
-
-const (
-	lastStreamResponseError = "EOS"
-)
-
-// serverError represents an error that has been returned from
-// the remote side of the RPC connection.
-type serverError string
-
-func (e serverError) Error() string {
-	return string(e)
-}
-
-// errShutdown holds the specific error for closing/closed connections
-var (
-	errShutdown = errs.New("connection is shut down")
-)
-
-type rpcCodec struct {
-	client transport.Client
-	codec  codec.Codec
-
-	req *transport.Message
-	buf *readWriteCloser
-
-	// signify if its a stream
-	stream string
-}
-
-type readWriteCloser struct {
-	wbuf *bytes.Buffer
-	rbuf *bytes.Buffer
-}
-
-var (
-	DefaultContentType = "application/protobuf"
-
-	DefaultCodecs = map[string]codec.NewCodec{
-		"application/grpc":         grpc.NewCodec,
-		"application/grpc+json":    grpc.NewCodec,
-		"application/grpc+proto":   grpc.NewCodec,
-		"application/protobuf":     proto.NewCodec,
-		"application/json":         json.NewCodec,
-		"application/json-rpc":     jsonrpc.NewCodec,
-		"application/proto-rpc":    protorpc.NewCodec,
-		"application/octet-stream": raw.NewCodec,
-	}
-
-	// TODO: remove legacy codec list
-	defaultCodecs = map[string]codec.NewCodec{
-		"application/json":         jsonrpc.NewCodec,
-		"application/json-rpc":     jsonrpc.NewCodec,
-		"application/protobuf":     protorpc.NewCodec,
-		"application/proto-rpc":    protorpc.NewCodec,
-		"application/octet-stream": protorpc.NewCodec,
-	}
-)
-
-func (rwc *readWriteCloser) Read(p []byte) (n int, err error) {
-	return rwc.rbuf.Read(p)
-}
-
-func (rwc *readWriteCloser) Write(p []byte) (n int, err error) {
-	return rwc.wbuf.Write(p)
-}
-
-func (rwc *readWriteCloser) Close() error {
-	rwc.rbuf.Reset()
-	rwc.wbuf.Reset()
-	return nil
-}
-
-func getHeaders(m *codec.Message) {
-	set := func(v, hdr string) string {
-		if len(v) > 0 {
-			return v
-		}
-		return m.Header[hdr]
-	}
-
-	// check error in header
-	m.Error = set(m.Error, "Micro-Error")
-
-	// check endpoint in header
-	m.Endpoint = set(m.Endpoint, "Micro-Endpoint")
-
-	// check method in header
-	m.Method = set(m.Method, "Micro-Method")
-
-	// set the request id
-	m.Id = set(m.Id, "Micro-Id")
-}
-
-func setHeaders(m *codec.Message, stream string) {
-	set := func(hdr, v string) {
-		if len(v) == 0 {
-			return
-		}
-		m.Header[hdr] = v
-	}
-
-	set("Micro-Id", m.Id)
-	set("Micro-Service", m.Target)
-	set("Micro-Method", m.Method)
-	set("Micro-Endpoint", m.Endpoint)
-	set("Micro-Error", m.Error)
-
-	if len(stream) > 0 {
-		set("Micro-Stream", stream)
-	}
-}
-
-// setupProtocol sets up the old protocol
-func setupProtocol(msg *transport.Message, node *registry.Node) codec.NewCodec {
-	// get the protocol from node metadata
-	if protocol := node.Metadata["protocol"]; len(protocol) > 0 {
-		return nil
-	}
-
-	// processing topic publishing
-	if len(msg.Header["Micro-Topic"]) > 0 {
-		return nil
-	}
-
-	// no protocol use old codecs
-	switch msg.Header["Content-Type"] {
-	case "application/json":
-		msg.Header["Content-Type"] = "application/json-rpc"
-	case "application/protobuf":
-		msg.Header["Content-Type"] = "application/proto-rpc"
-	}
-
-	// now return codec
-	return defaultCodecs[msg.Header["Content-Type"]]
-}
-
-func newRpcCodec(req *transport.Message, client transport.Client, c codec.NewCodec, stream string) codec.Codec {
-	rwc := &readWriteCloser{
-		wbuf: bytes.NewBuffer(nil),
-		rbuf: bytes.NewBuffer(nil),
-	}
-	r := &rpcCodec{
-		buf:    rwc,
-		client: client,
-		codec:  c(rwc),
-		req:    req,
-		stream: stream,
-	}
-	return r
-}
-
-func (c *rpcCodec) Write(m *codec.Message, body interface{}) error {
-	c.buf.wbuf.Reset()
-
-	// create header
-	if m.Header == nil {
-		m.Header = map[string]string{}
-	}
-
-	// copy original header
-	for k, v := range c.req.Header {
-		m.Header[k] = v
-	}
-
-	// set the mucp headers
-	setHeaders(m, c.stream)
-
-	// if body is bytes Frame don't encode
-	if body != nil {
-		if b, ok := body.(*raw.Frame); ok {
-			// set body
-			m.Body = b.Data
-		} else {
-			// write to codec
-			if err := c.codec.Write(m, body); err != nil {
-				return errors.InternalServerError("go.micro.client.codec", err.Error())
-			}
-			// set body
-			m.Body = c.buf.wbuf.Bytes()
-		}
-	}
-
-	// create new transport message
-	msg := transport.Message{
-		Header: m.Header,
-		Body:   m.Body,
-	}
-
-	// send the request
-	if err := c.client.Send(&msg); err != nil {
-		return errors.InternalServerError("go.micro.client.transport", err.Error())
-	}
-
-	return nil
-}
-
-func (c *rpcCodec) ReadHeader(m *codec.Message, r codec.MessageType) error {
-	var tm transport.Message
-
-	// read message from transport
-	if err := c.client.Recv(&tm); err != nil {
-		return errors.InternalServerError("go.micro.client.transport", err.Error())
-	}
-
-	c.buf.rbuf.Reset()
-	c.buf.rbuf.Write(tm.Body)
-
-	// set headers from transport
-	m.Header = tm.Header
-
-	// read header
-	err := c.codec.ReadHeader(m, r)
-
-	// get headers
-	getHeaders(m)
-
-	// return header error
-	if err != nil {
-		return errors.InternalServerError("go.micro.client.codec", err.Error())
-	}
-
-	return nil
-}
-
-func (c *rpcCodec) ReadBody(b interface{}) error {
-	// read body
-	// read raw data
-	if v, ok := b.(*raw.Frame); ok {
-		v.Data = c.buf.rbuf.Bytes()
-		return nil
-	}
-
-	if err := c.codec.ReadBody(b); err != nil {
-		return errors.InternalServerError("go.micro.client.codec", err.Error())
-	}
-	return nil
-}
-
-func (c *rpcCodec) Close() error {
-	c.buf.Close()
-	c.codec.Close()
-	if err := c.client.Close(); err != nil {
-		return errors.InternalServerError("go.micro.client.transport", err.Error())
-	}
-	return nil
-}
-
-func (c *rpcCodec) String() string {
-	return "rpc"
-}

client/mucp/mucp_message.go

@@ -1,40 +0,0 @@
-package mucp
-
-import (
-	"github.com/asim/go-micro/v3/client"
-)
-
-type message struct {
-	topic       string
-	contentType string
-	payload     interface{}
-}
-
-func newMessage(topic string, payload interface{}, contentType string, opts ...client.MessageOption) client.Message {
-	var options client.MessageOptions
-	for _, o := range opts {
-		o(&options)
-	}
-
-	if len(options.ContentType) > 0 {
-		contentType = options.ContentType
-	}
-
-	return &message{
-		payload:     payload,
-		topic:       topic,
-		contentType: contentType,
-	}
-}
-
-func (m *message) ContentType() string {
-	return m.contentType
-}
-
-func (m *message) Topic() string {
-	return m.topic
-}
-
-func (m *message) Payload() interface{} {
-	return m.payload
-}

client/mucp/mucp_request.go

@@ -1,66 +0,0 @@
-package mucp
-
-import (
-	"github.com/asim/go-micro/v3/client"
-	"github.com/asim/go-micro/v3/codec"
-)
-
-type rpcRequest struct {
-	service     string
-	method      string
-	endpoint    string
-	contentType string
-	codec       codec.Codec
-	body        interface{}
-	opts        client.RequestOptions
-}
-
-func newRequest(service, endpoint string, request interface{}, contentType string, reqOpts ...client.RequestOption) client.Request {
-	var opts client.RequestOptions
-
-	for _, o := range reqOpts {
-		o(&opts)
-	}
-
-	// set the content-type specified
-	if len(opts.ContentType) > 0 {
-		contentType = opts.ContentType
-	}
-
-	return &rpcRequest{
-		service:     service,
-		method:      endpoint,
-		endpoint:    endpoint,
-		body:        request,
-		contentType: contentType,
-		opts:        opts,
-	}
-}
-
-func (r *rpcRequest) ContentType() string {
-	return r.contentType
-}
-
-func (r *rpcRequest) Service() string {
-	return r.service
-}
-
-func (r *rpcRequest) Method() string {
-	return r.method
-}
-
-func (r *rpcRequest) Endpoint() string {
-	return r.endpoint
-}
-
-func (r *rpcRequest) Body() interface{} {
-	return r.body
-}
-
-func (r *rpcRequest) Codec() codec.Writer {
-	return r.codec
-}
-
-func (r *rpcRequest) Stream() bool {
-	return r.opts.Stream
-}

client/mucp/mucp_request_test.go

@@ -1,25 +0,0 @@
-package mucp
-
-import (
-	"testing"
-
-	"github.com/asim/go-micro/v3/client"
-)
-
-func TestRequestOptions(t *testing.T) {
-	r := newRequest("service", "endpoint", nil, "application/json")
-	if r.Service() != "service" {
-		t.Fatalf("expected 'service' got %s", r.Service())
-	}
-	if r.Endpoint() != "endpoint" {
-		t.Fatalf("expected 'endpoint' got %s", r.Endpoint())
-	}
-	if r.ContentType() != "application/json" {
-		t.Fatalf("expected 'endpoint' got %s", r.ContentType())
-	}
-
-	r2 := newRequest("service", "endpoint", nil, "application/json", client.WithContentType("application/protobuf"))
-	if r2.ContentType() != "application/protobuf" {
-		t.Fatalf("expected 'endpoint' got %s", r2.ContentType())
-	}
-}

client/mucp/mucp_response.go

@@ -1,35 +0,0 @@
-package mucp
-
-import (
-	"github.com/asim/go-micro/v3/codec"
-	"github.com/asim/go-micro/v3/network/transport"
-)
-
-type rpcResponse struct {
-	header map[string]string
-	body   []byte
-	socket transport.Socket
-	codec  codec.Codec
-}
-
-func (r *rpcResponse) Codec() codec.Reader {
-	return r.codec
-}
-
-func (r *rpcResponse) Header() map[string]string {
-	return r.header
-}
-
-func (r *rpcResponse) Read() ([]byte, error) {
-	var msg transport.Message
-
-	if err := r.socket.Recv(&msg); err != nil {
-		return nil, err
-	}
-
-	// set internals
-	r.header = msg.Header
-	r.body = msg.Body
-
-	return msg.Body, nil
-}

client/mucp/mucp_stream.go

@@ -1,165 +0,0 @@
-package mucp
-
-import (
-	"context"
-	"io"
-	"sync"
-
-	"github.com/asim/go-micro/v3/client"
-	"github.com/asim/go-micro/v3/codec"
-)
-
-// Implements the streamer interface
-type rpcStream struct {
-	sync.RWMutex
-	id       string
-	closed   chan bool
-	err      error
-	request  client.Request
-	response client.Response
-	codec    codec.Codec
-	context  context.Context
-
-	// signal whether we should send EOS
-	sendEOS bool
-
-	// release releases the connection back to the pool
-	release func(err error)
-}
-
-func (r *rpcStream) isClosed() bool {
-	select {
-	case <-r.closed:
-		return true
-	default:
-		return false
-	}
-}
-
-func (r *rpcStream) Context() context.Context {
-	return r.context
-}
-
-func (r *rpcStream) Request() client.Request {
-	return r.request
-}
-
-func (r *rpcStream) Response() client.Response {
-	return r.response
-}
-
-func (r *rpcStream) Send(msg interface{}) error {
-	r.Lock()
-	defer r.Unlock()
-
-	if r.isClosed() {
-		r.err = errShutdown
-		return errShutdown
-	}
-
-	req := codec.Message{
-		Id:       r.id,
-		Target:   r.request.Service(),
-		Method:   r.request.Method(),
-		Endpoint: r.request.Endpoint(),
-		Type:     codec.Request,
-	}
-
-	if err := r.codec.Write(&req, msg); err != nil {
-		r.err = err
-		return err
-	}
-
-	return nil
-}
-
-func (r *rpcStream) Recv(msg interface{}) error {
-	r.Lock()
-	defer r.Unlock()
-
-	if r.isClosed() {
-		r.err = errShutdown
-		return errShutdown
-	}
-
-	var resp codec.Message
-
-	r.Unlock()
-	err := r.codec.ReadHeader(&resp, codec.Response)
-	r.Lock()
-	if err != nil {
-		if err == io.EOF && !r.isClosed() {
-			r.err = io.ErrUnexpectedEOF
-			return io.ErrUnexpectedEOF
-		}
-		r.err = err
-		return err
-	}
-
-	switch {
-	case len(resp.Error) > 0:
-		// We've got an error response. Give this to the request;
-		// any subsequent requests will get the ReadResponseBody
-		// error if there is one.
-		if resp.Error != lastStreamResponseError {
-			r.err = serverError(resp.Error)
-		} else {
-			r.err = io.EOF
-		}
-		r.Unlock()
-		err = r.codec.ReadBody(nil)
-		r.Lock()
-		if err != nil {
-			r.err = err
-		}
-	default:
-		r.Unlock()
-		err = r.codec.ReadBody(msg)
-		r.Lock()
-		if err != nil {
-			r.err = err
-		}
-	}
-
-	return r.err
-}
-
-func (r *rpcStream) Error() error {
-	r.RLock()
-	defer r.RUnlock()
-	return r.err
-}
-
-func (r *rpcStream) Close() error {
-	r.Lock()
-
-	select {
-	case <-r.closed:
-		r.Unlock()
-		return nil
-	default:
-		close(r.closed)
-		r.Unlock()
-
-		// send the end of stream message
-		if r.sendEOS {
-			// no need to check for error
-			r.codec.Write(&codec.Message{
-				Id:       r.id,
-				Target:   r.request.Service(),
-				Method:   r.request.Method(),
-				Endpoint: r.request.Endpoint(),
-				Type:     codec.Error,
-				Error:    lastStreamResponseError,
-			}, nil)
-		}
-
-		err := r.codec.Close()
-
-		// release the connection
-		r.release(r.Error())
-
-		// return the codec error
-		return err
-	}
-}

client/mucp/mucp_test.go

@@ -1,159 +0,0 @@
-package mucp
-
-import (
-	"context"
-	"fmt"
-	"testing"
-
-	"github.com/asim/go-micro/v3/client"
-	"github.com/asim/go-micro/v3/errors"
-	"github.com/asim/go-micro/v3/registry"
-	"github.com/asim/go-micro/v3/registry/memory"
-	"github.com/asim/go-micro/v3/router"
-	regRouter "github.com/asim/go-micro/v3/router/registry"
-)
-
-func newTestRouter() router.Router {
-	reg := memory.NewRegistry(memory.Services(testData))
-	return regRouter.NewRouter(router.Registry(reg))
-}
-
-func TestCallAddress(t *testing.T) {
-	var called bool
-	service := "test.service"
-	endpoint := "Test.Endpoint"
-	address := "10.1.10.1:8080"
-
-	wrap := func(cf client.CallFunc) client.CallFunc {
-		return func(ctx context.Context, node string, req client.Request, rsp interface{}, opts client.CallOptions) error {
-			called = true
-
-			if req.Service() != service {
-				return fmt.Errorf("expected service: %s got %s", service, req.Service())
-			}
-
-			if req.Endpoint() != endpoint {
-				return fmt.Errorf("expected service: %s got %s", endpoint, req.Endpoint())
-			}
-
-			if node != address {
-				return fmt.Errorf("expected address: %s got %s", address, node)
-			}
-
-			// don't do the call
-			return nil
-		}
-	}
-
-	r := newTestRouter()
-
-	c := NewClient(
-		client.Router(r),
-		client.WrapCall(wrap),
-	)
-
-	req := c.NewRequest(service, endpoint, nil)
-
-	// test calling remote address
-	if err := c.Call(context.Background(), req, nil, client.WithAddress(address)); err != nil {
-		t.Fatal("call with address error", err)
-	}
-
-	if !called {
-		t.Fatal("wrapper not called")
-	}
-
-}
-
-func TestCallRetry(t *testing.T) {
-	service := "test.service"
-	endpoint := "Test.Endpoint"
-	address := "10.1.10.1"
-
-	var called int
-
-	wrap := func(cf client.CallFunc) client.CallFunc {
-		return func(ctx context.Context, node string, req client.Request, rsp interface{}, opts client.CallOptions) error {
-			called++
-			if called == 1 {
-				return errors.InternalServerError("test.error", "retry request")
-			}
-
-			// don't do the call
-			return nil
-		}
-	}
-
-	r := newTestRouter()
-	c := NewClient(
-		client.Router(r),
-		client.WrapCall(wrap),
-	)
-
-	req := c.NewRequest(service, endpoint, nil)
-
-	// test calling remote address
-	if err := c.Call(context.Background(), req, nil, client.WithAddress(address)); err != nil {
-		t.Fatal("call with address error", err)
-	}
-
-	// num calls
-	if called < c.Options().CallOptions.Retries+1 {
-		t.Fatal("request not retried")
-	}
-}
-
-func TestCallWrapper(t *testing.T) {
-	var called bool
-	id := "test.1"
-	service := "test.service"
-	endpoint := "Test.Endpoint"
-	address := "10.1.10.1:8080"
-
-	wrap := func(cf client.CallFunc) client.CallFunc {
-		return func(ctx context.Context, node string, req client.Request, rsp interface{}, opts client.CallOptions) error {
-			called = true
-
-			if req.Service() != service {
-				return fmt.Errorf("expected service: %s got %s", service, req.Service())
-			}
-
-			if req.Endpoint() != endpoint {
-				return fmt.Errorf("expected service: %s got %s", endpoint, req.Endpoint())
-			}
-
-			if node != address {
-				return fmt.Errorf("expected address: %s got %s", address, node)
-			}
-
-			// don't do the call
-			return nil
-		}
-	}
-
-	r := newTestRouter()
-	c := NewClient(
-		client.Router(r),
-		client.WrapCall(wrap),
-	)
-
-	r.Options().Registry.Register(&registry.Service{
-		Name:    service,
-		Version: "latest",
-		Nodes: []*registry.Node{
-			{
-				Id:      id,
-				Address: address,
-			},
-		},
-	})
-
-	req := c.NewRequest(service, endpoint, nil)
-	if err := c.Call(context.Background(), req, nil); err != nil {
-		t.Fatal("call wrapper error", err)
-	}
-
-	if !called {
-		t.Fatal("wrapper not called")
-	}
-}

client/mucp/options_test.go

@@ -1,86 +0,0 @@
-package mucp
-
-import (
-	"testing"
-	"time"
-
-	"github.com/asim/go-micro/v3/client"
-	"github.com/asim/go-micro/v3/network/transport"
-)
-
-func TestCallOptions(t *testing.T) {
-	testData := []struct {
-		set      bool
-		retries  int
-		rtimeout time.Duration
-		dtimeout time.Duration
-	}{
-		{false, client.DefaultRetries, client.DefaultRequestTimeout, transport.DefaultDialTimeout},
-		{true, 10, time.Second, time.Second * 2},
-	}
-
-	for _, d := range testData {
-		var opts client.Options
-		var cl client.Client
-
-		if d.set {
-			opts = client.NewOptions(
-				client.Retries(d.retries),
-				client.RequestTimeout(d.rtimeout),
-				client.DialTimeout(d.dtimeout),
-			)
-
-			cl = NewClient(
-				client.Retries(d.retries),
-				client.RequestTimeout(d.rtimeout),
-				client.DialTimeout(d.dtimeout),
-			)
-		} else {
-			opts = client.NewOptions()
-			cl = NewClient()
-		}
-
-		// test options and those set in client
-		for _, o := range []client.Options{opts, cl.Options()} {
-			if o.CallOptions.Retries != d.retries {
-				t.Fatalf("Expected retries %v got %v", d.retries, o.CallOptions.Retries)
-			}
-
-			if o.CallOptions.RequestTimeout != d.rtimeout {
-				t.Fatalf("Expected request timeout %v got %v", d.rtimeout, o.CallOptions.RequestTimeout)
-			}
-
-			if o.CallOptions.DialTimeout != d.dtimeout {
-				t.Fatalf("Expected %v got %v", d.dtimeout, o.CallOptions.DialTimeout)
-			}
-
-			// copy CallOptions
-			callOpts := o.CallOptions
-
-			// create new opts
-			cretries := client.WithRetries(o.CallOptions.Retries * 10)
-			crtimeout := client.WithRequestTimeout(o.CallOptions.RequestTimeout * (time.Second * 10))
-			cdtimeout := client.WithDialTimeout(o.CallOptions.DialTimeout * (time.Second * 10))
-
-			// set call options
-			for _, opt := range []client.CallOption{cretries, crtimeout, cdtimeout} {
-				opt(&callOpts)
-			}
-
-			// check call options
-			if e := o.CallOptions.Retries * 10; callOpts.Retries != e {
-				t.Fatalf("Expected retries %v got %v", e, callOpts.Retries)
-			}
-
-			if e := o.CallOptions.RequestTimeout * (time.Second * 10); callOpts.RequestTimeout != e {
-				t.Fatalf("Expected request timeout %v got %v", e, callOpts.RequestTimeout)
-			}
-
-			if e := o.CallOptions.DialTimeout * (time.Second * 10); callOpts.DialTimeout != e {
-				t.Fatalf("Expected %v got %v", e, callOpts.DialTimeout)
-			}
-
-		}
-
-	}
-}

client/noop.go

@@ -0,0 +1,231 @@
+package client
+
+import (
+	"context"
+
+	"github.com/unistack-org/micro/v3/broker"
+	"github.com/unistack-org/micro/v3/codec"
+	"github.com/unistack-org/micro/v3/errors"
+	"github.com/unistack-org/micro/v3/metadata"
+)
+
+var (
+	// DefaultCodecs will be used to encode/decode data
+	DefaultCodecs = map[string]codec.Codec{
+		//"application/json":         cjson.NewCodec,
+		//"application/json-rpc":     cjsonrpc.NewCodec,
+		//"application/protobuf":     cproto.NewCodec,
+		//"application/proto-rpc":    cprotorpc.NewCodec,
+		"application/octet-stream": codec.NewCodec(),
+	}
+)
+
+type noopClient struct {
+	opts Options
+}
+
+type noopMessage struct {
+	topic   string
+	payload interface{}
+	opts    MessageOptions
+}
+
+type noopRequest struct {
+	body        interface{}
+	codec       codec.Codec
+	service     string
+	method      string
+	endpoint    string
+	contentType string
+	stream      bool
+}
+
+// NewClient returns new noop client
+func NewClient(opts ...Option) Client {
+	nc := &noopClient{opts: NewOptions(opts...)}
+	// wrap in reverse
+
+	c := Client(nc)
+
+	for i := len(nc.opts.Wrappers); i > 0; i-- {
+		c = nc.opts.Wrappers[i-1](c)
+	}
+
+	return c
+}
+
+func (n *noopClient) Name() string {
+	return n.opts.Name
+}
+
+func (n *noopRequest) Service() string {
+	return n.service
+}
+
+func (n *noopRequest) Method() string {
+	return n.method
+}
+
+func (n *noopRequest) Endpoint() string {
+	return n.endpoint
+}
+
+func (n *noopRequest) ContentType() string {
+	return n.contentType
+}
+
+func (n *noopRequest) Body() interface{} {
+	return n.body
+}
+
+func (n *noopRequest) Codec() codec.Codec {
+	return n.codec
+}
+
+func (n *noopRequest) Stream() bool {
+	return n.stream
+}
+
+type noopResponse struct {
+	codec  codec.Codec
+	header metadata.Metadata
+}
+
+func (n *noopResponse) Codec() codec.Codec {
+	return n.codec
+}
+
+func (n *noopResponse) Header() metadata.Metadata {
+	return n.header
+}
+
+func (n *noopResponse) Read() ([]byte, error) {
+	return nil, nil
+}
+
+type noopStream struct{}
+
+func (n *noopStream) Context() context.Context {
+	return context.Background()
+}
+
+func (n *noopStream) Request() Request {
+	return &noopRequest{}
+}
+
+func (n *noopStream) Response() Response {
+	return &noopResponse{}
+}
+
+func (n *noopStream) Send(interface{}) error {
+	return nil
+}
+
+func (n *noopStream) Recv(interface{}) error {
+	return nil
+}
+
+func (n *noopStream) Error() error {
+	return nil
+}
+
+func (n *noopStream) Close() error {
+	return nil
+}
+
+func (n *noopMessage) Topic() string {
+	return n.topic
+}
+
+func (n *noopMessage) Payload() interface{} {
+	return n.payload
+}
+
+func (n *noopMessage) ContentType() string {
+	return n.opts.ContentType
+}
+
+func (n *noopClient) newCodec(contentType string) (codec.Codec, error) {
+	if cf, ok := n.opts.Codecs[contentType]; ok {
+		return cf, nil
+	}
+	if cf, ok := DefaultCodecs[contentType]; ok {
+		return cf, nil
+	}
+	return nil, codec.ErrUnknownContentType
+}
+
+func (n *noopClient) Init(opts ...Option) error {
+	for _, o := range opts {
+		o(&n.opts)
+	}
+	return nil
+}
+
+func (n *noopClient) Options() Options {
+	return n.opts
+}
+
+func (n *noopClient) String() string {
+	return "noop"
+}
+
+func (n *noopClient) Call(ctx context.Context, req Request, rsp interface{}, opts ...CallOption) error {
+	return nil
+}
+
+func (n *noopClient) NewRequest(service, endpoint string, req interface{}, opts ...RequestOption) Request {
+	return &noopRequest{service: service, endpoint: endpoint}
+}
+
+func (n *noopClient) NewMessage(topic string, msg interface{}, opts ...MessageOption) Message {
+	options := NewMessageOptions(opts...)
+	return &noopMessage{topic: topic, payload: msg, opts: options}
+}
+
+func (n *noopClient) Stream(ctx context.Context, req Request, opts ...CallOption) (Stream, error) {
+	return &noopStream{}, nil
+}
+
+func (n *noopClient) Publish(ctx context.Context, p Message, opts ...PublishOption) error {
+	var body []byte
+
+	options := NewPublishOptions(opts...)
+
+	md, ok := metadata.FromOutgoingContext(ctx)
+	if !ok {
+		md = metadata.New(0)
+	}
+	md["Content-Type"] = p.ContentType()
+	md["Micro-Topic"] = p.Topic()
+
+	// passed in raw data
+	if d, ok := p.Payload().(*codec.Frame); ok {
+		body = d.Data
+	} else {
+		// use codec for payload
+		cf, err := n.newCodec(p.ContentType())
+		if err != nil {
+			return errors.InternalServerError("go.micro.client", err.Error())
+		}
+
+		// set the body
+		b, err := cf.Marshal(p.Payload())
+		if err != nil {
+			return errors.InternalServerError("go.micro.client", err.Error())
+		}
+		body = b
+	}
+
+	topic := p.Topic()
+
+	// get the exchange
+	if len(options.Exchange) > 0 {
+		topic = options.Exchange
+	}
+
+	return n.opts.Broker.Publish(ctx, topic, &broker.Message{
+		Header: md,
+		Body:   body,
+	}, broker.PublishContext(options.Context))
+}

client/options.go

@@ -2,112 +2,168 @@ package client
 
 import (
 	"context"
+	"crypto/tls"
 	"time"
 
-	"github.com/asim/go-micro/v3/broker"
-	"github.com/asim/go-micro/v3/broker/http"
-	"github.com/asim/go-micro/v3/codec"
-	"github.com/asim/go-micro/v3/network/transport"
-	thttp "github.com/asim/go-micro/v3/network/transport/http"
-	"github.com/asim/go-micro/v3/registry"
-	"github.com/asim/go-micro/v3/router"
-	regRouter "github.com/asim/go-micro/v3/router/registry"
-	"github.com/asim/go-micro/v3/selector"
-	"github.com/asim/go-micro/v3/selector/roundrobin"
+	"github.com/unistack-org/micro/v3/broker"
+	"github.com/unistack-org/micro/v3/codec"
+	"github.com/unistack-org/micro/v3/logger"
+	"github.com/unistack-org/micro/v3/meter"
+	"github.com/unistack-org/micro/v3/network/transport"
+	"github.com/unistack-org/micro/v3/register"
+	"github.com/unistack-org/micro/v3/router"
+	"github.com/unistack-org/micro/v3/selector"
+	"github.com/unistack-org/micro/v3/selector/random"
+	"github.com/unistack-org/micro/v3/tracer"
 )
 
+// Options holds client options
 type Options struct {
-	// Used to select codec
-	ContentType string
-	// Proxy address to send requests via
-	Proxy string
-
-	// Plugged interfaces
-	Broker    broker.Broker
-	Codecs    map[string]codec.NewCodec
-	Router    router.Router
-	Selector  selector.Selector
-	Transport transport.Transport
-
-	// Lookup used for looking up routes
-	Lookup LookupFunc
-
-	// Connection Pool
-	PoolSize int
-	PoolTTL  time.Duration
-
-	// Middleware for client
-	Wrappers []Wrapper
-
-	// Default Call Options
+	// CallOptions contains default CallOptions
 	CallOptions CallOptions
-
-	// Other options for implementations of the interface
-	// can be stored in a context
-	Context context.Context
-}
-
-type CallOptions struct {
-	// Address of remote hosts
-	Address []string
-	// Backoff func
-	Backoff BackoffFunc
-	// Transport Dial Timeout
-	DialTimeout time.Duration
-	// Number of Call attempts
-	Retries int
-	// Check if retriable func
-	Retry RetryFunc
-	// Request/Response timeout
-	RequestTimeout time.Duration
-	// Router to use for this call
+	// Logger used to log messages
+	Logger logger.Logger
+	// Tracer used for tracing
+	Tracer tracer.Tracer
+	// Broker used to publish messages
+	Broker broker.Broker
+	// Meter used for metrics
+	Meter meter.Meter
+	// Router used to get route
 	Router router.Router
-	// Selector to use for the call
+	// Selector used to select needed address
 	Selector selector.Selector
-	// SelectOptions to use when selecting a route
-	SelectOptions []selector.SelectOption
-	// Stream timeout for the stream
-	StreamTimeout time.Duration
-	// Use the auth token as the authorization header
-	AuthToken bool
-	// Network to lookup the route within
+	// Transport used for transfer messages
+	Transport transport.Transport
+	// Context is used for external options
+	Context context.Context
+	// Codecs map
+	Codecs map[string]codec.Codec
+	// Lookup func used to get destination addr
+	Lookup LookupFunc
+	// Proxy is used for proxy requests
+	Proxy string
+	// ContentType is Used to select codec
+	ContentType string
+	// Name is the client name
+	Name string
+	// Wrappers contains wrappers
+	Wrappers []Wrapper
+	// PoolSize connection pool size
+	PoolSize int
+	// PoolTTL connection pool ttl
+	PoolTTL time.Duration
+	// TLSConfig specifies tls.Config for secure connection
+	TLSConfig *tls.Config
+}
+
+// NewCallOptions creates new call options struct
+func NewCallOptions(opts ...CallOption) CallOptions {
+	options := CallOptions{}
+	for _, o := range opts {
+		o(&options)
+	}
+	return options
+}
+
+// CallOptions holds client call options
+type CallOptions struct {
+	// Router used for route
+	Router router.Router
+	// Selector selects addr
+	Selector selector.Selector
+	// Context used for deadline
+	Context context.Context
+	// Retry func used for retries
+	Retry RetryFunc
+	// Backoff func used for backoff when retry
+	Backoff BackoffFunc
+	// Network name
 	Network string
-
-	// Middleware for low level call func
+	// CallWrappers call wrappers
 	CallWrappers []CallWrapper
-
-	// Other options for implementations of the interface
-	// can be stored in a context
-	Context context.Context
+	// SelectOptions selector options
+	SelectOptions []selector.SelectOption
+	// Address specifies static addr list
+	Address []string
+	// Retries specifies retries num
+	Retries int
+	// StreamTimeout stream timeout
+	StreamTimeout time.Duration
+	// RequestTimeout request timeout
+	RequestTimeout time.Duration
+	// DialTimeout dial timeout
+	DialTimeout time.Duration
+	// AuthToken flag
+	AuthToken bool
 }
 
+// Context pass context to client
+func Context(ctx context.Context) Option {
+	return func(o *Options) {
+		o.Context = ctx
+	}
+}
+
+// NewPublishOptions create new PublishOptions struct from option
+func NewPublishOptions(opts ...PublishOption) PublishOptions {
+	options := PublishOptions{}
+	for _, o := range opts {
+		o(&options)
+	}
+	return options
+}
+
+// PublishOptions holds publish options
 type PublishOptions struct {
-	// Exchange is the routing exchange for the message
+	// Context used for external options
+	Context context.Context
+	// Exchange topic exchange name
 	Exchange string
-	// Other options for implementations of the interface
-	// can be stored in a context
-	Context context.Context
 }
 
+// NewMessageOptions creates message options struct
+func NewMessageOptions(opts ...MessageOption) MessageOptions {
+	options := MessageOptions{}
+	for _, o := range opts {
+		o(&options)
+	}
+	return options
+}
+
+// MessageOptions holds client message options
 type MessageOptions struct {
+	// ContentType specify content-type of message
 	ContentType string
 }
 
+// NewRequestOptions creates new RequestOptions struct
+func NewRequestOptions(opts ...RequestOption) RequestOptions {
+	options := RequestOptions{}
+	for _, o := range opts {
+		o(&options)
+	}
+	return options
+}
+
+// RequestOptions holds client request options
 type RequestOptions struct {
-	ContentType string
-	Stream      bool
-
-	// Other options for implementations of the interface
-	// can be stored in a context
+	// Context used for external options
 	Context context.Context
+	// ContentType specify content-type of message
+	ContentType string
+	// Stream flag
+	Stream bool
 }
 
-func NewOptions(options ...Option) Options {
-	opts := Options{
+// NewOptions creates new options struct
+func NewOptions(opts ...Option) Options {
+	options := Options{
 		Context:     context.Background(),
-		ContentType: "application/protobuf",
-		Codecs:      make(map[string]codec.NewCodec),
+		ContentType: DefaultContentType,
+		Codecs:      make(map[string]codec.Codec),
 		CallOptions: CallOptions{
+			Context:        context.Background(),
 			Backoff:        DefaultBackoff,
 			Retry:          DefaultRetry,
 			Retries:        DefaultRetries,
@@ -117,17 +173,20 @@ func NewOptions(options ...Option) Options {
 		Lookup:    LookupRoute,
 		PoolSize:  DefaultPoolSize,
 		PoolTTL:   DefaultPoolTTL,
-		Broker:    http.NewBroker(),
-		Router:    regRouter.NewRouter(),
-		Selector:  roundrobin.NewSelector(),
-		Transport: thttp.NewTransport(),
+		Selector:  random.NewSelector(),
+		Logger:    logger.DefaultLogger,
+		Broker:    broker.DefaultBroker,
+		Meter:     meter.DefaultMeter,
+		Tracer:    tracer.DefaultTracer,
+		Router:    router.DefaultRouter,
+		Transport: transport.DefaultTransport,
 	}
 
-	for _, o := range options {
-		o(&opts)
+	for _, o := range opts {
+		o(&options)
 	}
 
-	return opts
+	return options
 }
 
 // Broker to be used for pub/sub
@@ -137,14 +196,35 @@ func Broker(b broker.Broker) Option {
 	}
 }
 
+// Tracer to be used for tracing
+func Tracer(t tracer.Tracer) Option {
+	return func(o *Options) {
+		o.Tracer = t
+	}
+}
+
+// Logger to be used for log mesages
+func Logger(l logger.Logger) Option {
+	return func(o *Options) {
+		o.Logger = l
+	}
+}
+
+// Meter to be used for metrics
+func Meter(m meter.Meter) Option {
+	return func(o *Options) {
+		o.Meter = m
+	}
+}
+
 // Codec to be used to encode/decode requests for a given content type
-func Codec(contentType string, c codec.NewCodec) Option {
+func Codec(contentType string, c codec.Codec) Option {
 	return func(o *Options) {
 		o.Codecs[contentType] = c
 	}
 }
 
-// Default content type of the client
+// ContentType used by default if not specified
 func ContentType(ct string) Option {
 	return func(o *Options) {
 		o.ContentType = ct
@@ -179,10 +259,12 @@ func Transport(t transport.Transport) Option {
 	}
 }
 
-// Registry sets the routers registry
-func Registry(r registry.Registry) Option {
+// Register sets the routers register
+func Register(r register.Register) Option {
 	return func(o *Options) {
-		o.Router.Init(router.Registry(r))
+		if o.Router != nil {
+			o.Router.Init(router.Register(r))
+		}
 	}
 }
 
@@ -200,28 +282,34 @@ func Selector(s selector.Selector) Option {
 	}
 }
 
-// Adds a Wrapper to a list of options passed into the client
+// Wrap adds a wrapper to the list of options passed into the client
 func Wrap(w Wrapper) Option {
 	return func(o *Options) {
 		o.Wrappers = append(o.Wrappers, w)
 	}
 }
 
-// Adds a Wrapper to the list of CallFunc wrappers
+// WrapCall adds a wrapper to the list of CallFunc wrappers
 func WrapCall(cw ...CallWrapper) Option {
 	return func(o *Options) {
 		o.CallOptions.CallWrappers = append(o.CallOptions.CallWrappers, cw...)
 	}
 }
 
-// Backoff is used to set the backoff function used
-// when retrying Calls
+// Backoff is used to set the backoff function used when retrying Calls
 func Backoff(fn BackoffFunc) Option {
 	return func(o *Options) {
 		o.CallOptions.Backoff = fn
 	}
 }
 
+// Name sets the client name
+func Name(n string) Option {
+	return func(o *Options) {
+		o.Name = n
+	}
+}
+
 // Lookup sets the lookup function to use for resolving service names
 func Lookup(l LookupFunc) Option {
 	return func(o *Options) {
@@ -229,8 +317,23 @@ func Lookup(l LookupFunc) Option {
 	}
 }
 
-// Number of retries when making the request.
-// Should this be a Call Option?
+// TLSConfig specifies a *tls.Config
+func TLSConfig(t *tls.Config) Option {
+	return func(o *Options) {
+		// set the internal tls
+		o.TLSConfig = t
+
+		// set the default transport if one is not
+		// already set. Required for Init call below.
+
+		// set the transport tls
+		o.Transport.Init(
+			transport.TLSConfig(t),
+		)
+	}
+}
+
+// Retries sets the retry count when making the request.
 func Retries(i int) Option {
 	return func(o *Options) {
 		o.CallOptions.Retries = i
@@ -244,8 +347,7 @@ func Retry(fn RetryFunc) Option {
 	}
 }
 
-// The request timeout.
-// Should this be a Call Option?
+// RequestTimeout is the request timeout.
 func RequestTimeout(d time.Duration) Option {
 	return func(o *Options) {
 		o.CallOptions.RequestTimeout = d
@@ -259,15 +361,13 @@ func StreamTimeout(d time.Duration) Option {
 	}
 }
 
-// Transport dial timeout
+// DialTimeout sets the dial timeout
 func DialTimeout(d time.Duration) Option {
 	return func(o *Options) {
 		o.CallOptions.DialTimeout = d
 	}
 }
 
-// Call Options
-
 // WithExchange sets the exchange to route a message through
 func WithExchange(e string) PublishOption {
 	return func(o *PublishOptions) {
@@ -379,20 +479,21 @@ func WithSelectOptions(sops ...selector.SelectOption) CallOption {
 	}
 }
 
+// WithMessageContentType sets the message content type
 func WithMessageContentType(ct string) MessageOption {
 	return func(o *MessageOptions) {
 		o.ContentType = ct
 	}
 }
 
-// Request Options
-
+// WithContentType specifies request content type
 func WithContentType(ct string) RequestOption {
 	return func(o *RequestOptions) {
 		o.ContentType = ct
 	}
 }
 
+// StreamingRequest specifies that request is streaming
 func StreamingRequest() RequestOption {
 	return func(o *RequestOptions) {
 		o.Stream = true

client/retry.go

@@ -2,12 +2,11 @@ package client
 
 import (
 	"context"
-	"net/http"
 
-	"github.com/asim/go-micro/v3/errors"
+	"github.com/unistack-org/micro/v3/errors"
 )
 
-// note that returning either false or a non-nil error will result in the call not being retried
+// RetryFunc that returning either false or a non-nil error will result in the call not being retried
 type RetryFunc func(ctx context.Context, req Request, retryCount int, err error) (bool, error)
 
 // RetryAlways always retry on error
@@ -15,22 +14,23 @@ func RetryAlways(ctx context.Context, req Request, retryCount int, err error) (b
 	return true, nil
 }
 
+// RetryNever never retry on error
+func RetryNever(ctx context.Context, req Request, retryCount int, err error) (bool, error) {
+	return false, nil
+}
+
 // RetryOnError retries a request on a 500 or timeout error
 func RetryOnError(ctx context.Context, req Request, retryCount int, err error) (bool, error) {
 	if err == nil {
 		return false, nil
 	}
 
-	e := errors.Parse(err.Error())
-	if e == nil {
-		return false, nil
+	me := errors.FromError(err)
+	switch me.Code {
+	// retry on timeout or internal server error
+	case 408, 500:
+		return true, nil
 	}
 
-	switch e.Code {
-	// retry on timeout or internal server error
-	case http.StatusRequestTimeout, http.StatusInternalServerError:
-		return true, nil
-	default:
-		return false, nil
-	}
+	return false, nil
 }