22 changed files with 954 additions and 1097 deletions
--- a/.gitea/workflows/job_lint.yml
+++ b/.gitea/workflows/job_lint.yml
@ -1,29 +0,0 @@
-name: lint
-
-on:
-  pull_request:
-    types: [opened, reopened, synchronize]
-    branches:
-    - master
-    - v3
-    - v4
-
-jobs:
-  lint:
-    runs-on: ubuntu-latest
-    steps:
-    - name: checkout code
-      uses: actions/checkout@v4
-      with:
-        filter: 'blob:none'
-    - name: setup go
-      uses: actions/setup-go@v5
-      with:
-        cache-dependency-path: "**/*.sum"
-        go-version: 'stable' 
-    - name: setup deps
-      run: go get -v ./...
-    - name: run lint
-      uses: https://github.com/golangci/golangci-lint-action@v6
-      with:
-        version: 'latest'
--- a/.gitea/workflows/job_test.yml
+++ b/.gitea/workflows/job_test.yml
@ -1,34 +0,0 @@
-name: test
-
-on:
-  pull_request:
-    types: [opened, reopened, synchronize]
-    branches:
-    - master
-    - v3
-    - v4
-  push:
-    branches:
-    - master
-    - v3
-    - v4
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    steps:
-    - name: checkout code
-      uses: actions/checkout@v4
-      with:
-        filter: 'blob:none'
-    - name: setup go
-      uses: actions/setup-go@v5
-      with:
-        cache-dependency-path: "**/*.sum"
-        go-version: 'stable'
-    - name: setup deps
-      run: go get -v ./...
-    - name: run test
-      env:
-        INTEGRATION_TESTS: yes
-      run: go test -mod readonly -v ./...
--- a/.gitea/workflows/job_tests.yml
+++ b/.gitea/workflows/job_tests.yml
@ -1,53 +0,0 @@
-name: test
-
-on:
-  pull_request:
-    types: [opened, reopened, synchronize]
-    branches:
-    - master
-    - v3
-    - v4
-  push:
-    branches:
-    - master
-    - v3
-    - v4
-
-jobs:
-  test:
-    runs-on: ubuntu-latest
-    steps:
-    - name: checkout code
-      uses: actions/checkout@v4
-      with:
-        filter: 'blob:none'
-    - name: checkout tests
-      uses: actions/checkout@v4
-      with:
-        ref: master
-        filter: 'blob:none'
-        repository: unistack-org/micro-tests
-        path: micro-tests
-    - name: setup go
-      uses: actions/setup-go@v5
-      with:
-        cache-dependency-path: "**/*.sum"
-        go-version: 'stable'
-    - name: setup go work
-      env:
-        GOWORK: /workspace/${{ github.repository_owner }}/go.work
-      run: |
-        go work init
-        go work use .
-        go work use micro-tests        
-    - name: setup deps
-      env:
-        GOWORK: /workspace/${{ github.repository_owner }}/go.work
-      run: go get -v ./...
-    - name: run tests
-      env:
-        INTEGRATION_TESTS: yes
-        GOWORK: /workspace/${{ github.repository_owner }}/go.work
-      run: |
-        cd micro-tests
-        go test -mod readonly -v ./... || true        
--- a/.github/ISSUE_TEMPLATE/bug_report.md
+++ b/.github/ISSUE_TEMPLATE/bug_report.md
--- a/.github/ISSUE_TEMPLATE/feature-request---enhancement.md
+++ b/.github/ISSUE_TEMPLATE/feature-request---enhancement.md
--- a/.github/ISSUE_TEMPLATE/question.md
+++ b/.github/ISSUE_TEMPLATE/question.md
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
--- a/.github/stale.sh
+++ b/.github/stale.sh
@ -0,0 +1,13 @@
+#!/bin/bash -ex
+
+export PATH=$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
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@ -0,0 +1,46 @@
+name: build
+on:
+ push:
+    branches:
+    - master
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+    - name: setup
+      uses: actions/setup-go@v1
+      with:
+        go-version: 1.15
+    - name: checkout
+      uses: actions/checkout@v2
+    - name: cache
+      uses: actions/cache@v2
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: ${{ runner.os }}-go-
+    - name: deps
+      run: go get -v -t -d ./...
+    - name: test
+      env:
+        INTEGRATION_TESTS: yes
+      run: 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@v1
+        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
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@ -0,0 +1,46 @@
+name: prbuild
+on:
+  pull_request:
+    branches:
+    - master
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+    - name: setup
+      uses: actions/setup-go@v1
+      with:
+        go-version: 1.15
+    - name: checkout
+      uses: actions/checkout@v2
+    - name: cache
+      uses: actions/cache@v2
+      with:
+        path: ~/go/pkg/mod
+        key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
+        restore-keys: ${{ runner.os }}-go-
+    - name: deps
+      run: go get -v -t -d ./...
+    - name: test
+      env:
+        INTEGRATION_TESTS: yes
+      run: 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@v1
+        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
--- a/.golangci.yml
+++ b/.golangci.yml
@ -1,5 +0,0 @@
-run:
-  concurrency: 8
-  deadline: 5m
-  issues-exit-code: 1
-  tests: true
--- a/README.md
+++ b/README.md
@ -5,14 +5,14 @@ This plugin is a http client for micro.
 ## Overview

 The http client wraps `net/http` to provide a robust micro client with service discovery, load balancing and streaming. 
-It complies with the [micro.Client](https://godoc.org/go.unistack.org/micro-client-http/v4#Client) interface.
+It complies with the [micro.Client](https://godoc.org/github.com/unistack-org/micro-client-http#Client) interface.

 ## Usage

 ### Use directly

 ```go
-import "go.unistack.org/micro-client-http/v4"
+import "github.com/unistack-org/micro-client-http"

 service := micro.NewService(
 	micro.Name("my.service"),
--- a/go.mod
+++ b/go.mod
@ -1,5 +1,5 @@
-module go.unistack.org/micro-client-http/v4
+module github.com/unistack-org/micro-client-http/v3

-go 1.19
+go 1.14

-require go.unistack.org/micro/v4 v4.0.18
+require github.com/unistack-org/micro/v3 v3.1.2
--- a/go.sum
+++ b/go.sum
@ -1,6 +1,463 @@
-go.unistack.org/micro/v4 v4.0.1 h1:xo1IxbVfgh8i0eY0VeYa3cbb13u5n/Mxnp3FOgWD4Jo=
-go.unistack.org/micro/v4 v4.0.1/go.mod h1:p/J5UcSJjfHsWGT31uKoghQ5rUQZzQJBAFy+Z4+ZVMs=
-go.unistack.org/micro/v4 v4.0.6 h1:YFWvTh3VwyOd6NHYTQcf47n2TF5+p/EhpnbuBQX3qhk=
-go.unistack.org/micro/v4 v4.0.6/go.mod h1:bVEYTlPi0EsdgZZt311bIroDg9ict7ky3C87dSCCAGk=
-go.unistack.org/micro/v4 v4.0.18 h1:b7WFwem8Nz1xBrRg5FeLnm9CE5gJseHyf9j0BhkiXW0=
-go.unistack.org/micro/v4 v4.0.18/go.mod h1:5+da5r835gP0WnNZbYUJDCvWpJ9Xc3IEGyp62e8o8R4=
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU=
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+gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
+gopkg.in/square/go-jose.v2 v2.3.1 h1:SK5KegNXmKmqE342YYN2qPHEnUYeoMiXXl1poUlI+o4=
+gopkg.in/square/go-jose.v2 v2.3.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
+gopkg.in/square/go-jose.v2 v2.4.1/go.mod h1:M9dMgbHiYLoDGQrXy7OpJDJWiKiU//h+vD76mk0e1AI=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7 h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ=
+gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.3.0 h1:clyUAQHOM3G0M3f5vQj7LuJrETvjVot3Z5el9nffUtU=
+gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
+honnef.co/go/tools v0.0.1-2019.2.3 h1:3JgtbtFHMiCmsznwGVTUWbgGov+pVqnlf1dEJTNAXeM=
+honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
--- a/http.go
+++ b/http.go
@ -1,5 +1,5 @@
 // Package http provides a http client
-package http // import "go.unistack.org/micro-client-http/v4"
+package http

 import (
 	"bufio"
@ -10,293 +10,159 @@ import (
 	"net"
 	"net/http"
 	"net/url"
-	"strings"
-	"sync"
+	"os"
 	"time"

-	"go.unistack.org/micro/v4/client"
-	"go.unistack.org/micro/v4/codec"
-	"go.unistack.org/micro/v4/errors"
-	"go.unistack.org/micro/v4/logger"
-	"go.unistack.org/micro/v4/metadata"
-	"go.unistack.org/micro/v4/options"
-	"go.unistack.org/micro/v4/selector"
-	rutil "go.unistack.org/micro/v4/util/reflect"
+	"github.com/unistack-org/micro/v3/broker"
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/codec"
+	"github.com/unistack-org/micro/v3/errors"
+	"github.com/unistack-org/micro/v3/metadata"
+	"github.com/unistack-org/micro/v3/router"
 )

-var DefaultContentType = "application/json"
-
-/*
 func filterLabel(r []router.Route) []router.Route {
 	//				selector.FilterLabel("protocol", "http")
 	return r
 }
-*/

 type httpClient struct {
-	httpcli *http.Client
 	opts    client.Options
-	sync.RWMutex
-	init bool
+	dialer  *net.Dialer
+	httpcli *http.Client
 }

-func newRequest(ctx context.Context, log logger.Logger, addr string, req client.Request, ct string, cf codec.Codec, msg interface{}, opts client.CallOptions) (*http.Request, error) {
-	var tags []string
-	var parameters map[string]map[string]string
-	scheme := "http"
-	method := http.MethodPost
+func newRequest(addr string, req client.Request, cf codec.Codec, msg interface{}, opts client.CallOptions) (*http.Request, error) {
+	hreq := &http.Request{Method: http.MethodPost}
 	body := "*" // as like google api http annotation
-	host := addr
-	path := req.Endpoint()
-
 	u, err := url.Parse(addr)
-	if err == nil {
-		scheme = u.Scheme
-		path = u.Path
-		host = u.Host
+	if err != nil {
+		hreq.URL = &url.URL{
+			Scheme: "http",
+			Host:   addr,
+			Path:   req.Endpoint(),
+		}
+		hreq.Host = addr
 	} else {
-		u = &url.URL{Scheme: scheme, Path: path, Host: host}
-	}
-
-	// nolint: nestif
-	if opts.Context != nil {
-		if m, ok := opts.Context.Value(methodKey{}).(string); ok {
-			method = m
-		}
-		if p, ok := opts.Context.Value(pathKey{}).(string); ok {
-			path += p
-		}
-		if b, ok := opts.Context.Value(bodyKey{}).(string); ok {
-			body = b
-		}
-		if t, ok := opts.Context.Value(structTagsKey{}).([]string); ok && len(t) > 0 {
-			tags = t
-		}
-		if k, ok := opts.Context.Value(headerKey{}).([]string); ok && len(k) > 0 {
-			if parameters == nil {
-				parameters = make(map[string]map[string]string)
+		ep := req.Endpoint()
+		if opts.Context != nil {
+			if m, ok := opts.Context.Value(methodKey{}).(string); ok {
+				hreq.Method = m
 			}
-			m, ok := parameters["header"]
-			if !ok {
-				m = make(map[string]string)
-				parameters["header"] = m
+			if p, ok := opts.Context.Value(pathKey{}).(string); ok {
+				ep = p
 			}
-			for idx := 0; idx < len(k)/2; idx += 2 {
-				m[k[idx]] = k[idx+1]
+			if b, ok := opts.Context.Value(bodyKey{}).(string); ok {
+				body = b
 			}
 		}
-		if k, ok := opts.Context.Value(cookieKey{}).([]string); ok && len(k) > 0 {
-			if parameters == nil {
-				parameters = make(map[string]map[string]string)
-			}
-			m, ok := parameters["cookie"]
-			if !ok {
-				m = make(map[string]string)
-				parameters["cookie"] = m
-			}
-			for idx := 0; idx < len(k)/2; idx += 2 {
-				m[k[idx]] = k[idx+1]
-			}
+		hreq.URL, err = u.Parse(ep)
+		if err != nil {
+			return nil, errors.BadRequest("go.micro.client", err.Error())
 		}
 	}

-	if len(tags) == 0 {
-		switch ct {
-		default:
-			tags = append(tags, "json", "protobuf")
-		case "text/xml":
-			tags = append(tags, "xml")
-		}
-	}
-
-	if path == "" {
-		path = req.Endpoint()
-	}
-
-	u, err = u.Parse(path)
+	path, nmsg, err := newPathRequest(hreq.URL.Path, hreq.Method, body, msg)
 	if err != nil {
 		return nil, errors.BadRequest("go.micro.client", err.Error())
 	}

-	var nmsg interface{}
-	if len(u.Query()) > 0 {
-		path, nmsg, err = newPathRequest(u.Path+"?"+u.RawQuery, method, body, msg, tags, parameters)
-	} else {
-		path, nmsg, err = newPathRequest(u.Path, method, body, msg, tags, parameters)
-	}
-
-	if err != nil {
-		return nil, errors.BadRequest("go.micro.client", err.Error())
-	}
-
-	u, err = url.Parse(fmt.Sprintf("%s://%s%s", scheme, host, path))
-	if err != nil {
-		return nil, errors.BadRequest("go.micro.client", err.Error())
-	}
-
-	var cookies []*http.Cookie
-	header := make(http.Header)
-	if opts.Context != nil {
-		if md, ok := opts.Context.Value(metadataKey{}).(metadata.Metadata); ok {
-			for k, v := range md {
-				header[k] = v
-			}
-		}
-	}
-	if opts.AuthToken != "" {
-		header.Set(metadata.HeaderAuthorization, opts.AuthToken)
-	}
-	if opts.RequestMetadata != nil {
-		for k, v := range opts.RequestMetadata {
-			header[k] = v
-		}
-	}
-
-	if md, ok := metadata.FromOutgoingContext(ctx); ok {
-		for k, v := range md {
-			header[k] = v
-		}
-	}
-
-	// set timeout in nanoseconds
-	if opts.StreamTimeout > time.Duration(0) {
-		header.Set(metadata.HeaderTimeout, fmt.Sprintf("%d", opts.StreamTimeout))
-	}
-	if opts.RequestTimeout > time.Duration(0) {
-		header.Set(metadata.HeaderTimeout, fmt.Sprintf("%d", opts.RequestTimeout))
-	}
-
-	// set the content type for the request
-	header.Set(metadata.HeaderContentType, ct)
-	var v interface{}
-
-	for km, vm := range parameters {
-		for k, required := range vm {
-			v, err = rutil.StructFieldByPath(msg, k)
-			if err != nil {
-				return nil, errors.BadRequest("go.micro.client", err.Error())
-			}
-			if rutil.IsZero(v) {
-				if required == "true" {
-					return nil, errors.BadRequest("go.micro.client", fmt.Sprintf("required field %s not set", k))
-				}
-				continue
-			}
-
-			switch km {
-			case "header":
-				header.Set(k, fmt.Sprintf("%v", v))
-			case "cookie":
-				cookies = append(cookies, &http.Cookie{Name: k, Value: fmt.Sprintf("%v", v)})
-			}
-		}
-	}
-
+	hreq.URL.Path = path
+	// marshal request
 	b, err := cf.Marshal(nmsg)
 	if err != nil {
 		return nil, errors.BadRequest("go.micro.client", err.Error())
 	}

-	var hreq *http.Request
-	if len(b) > 0 {
-		hreq, err = http.NewRequestWithContext(ctx, method, u.String(), ioutil.NopCloser(bytes.NewBuffer(b)))
-		hreq.ContentLength = int64(len(b))
-		header.Set("Content-Length", fmt.Sprintf("%d", hreq.ContentLength))
-	} else {
-		hreq, err = http.NewRequestWithContext(ctx, method, u.String(), nil)
-	}
-
-	if err != nil {
-		return nil, errors.BadRequest("go.micro.client", err.Error())
-	}
-
-	hreq.Header = header
-	for _, cookie := range cookies {
-		hreq.AddCookie(cookie)
-	}
-
-	if log.V(logger.DebugLevel) {
-		log.Debug(ctx, fmt.Sprintf("request %s to %s with headers %v body %s", method, u.String(), hreq.Header, b))
-	}
+	hreq.Body = ioutil.NopCloser(bytes.NewBuffer(b))
+	hreq.ContentLength = int64(len(b))

 	return hreq, nil
 }

 func (h *httpClient) call(ctx context.Context, addr string, req client.Request, rsp interface{}, opts client.CallOptions) error {
-	ct := req.ContentType()
-	if len(opts.ContentType) > 0 {
-		ct = opts.ContentType
+	header := make(http.Header, 2)
+	if md, ok := metadata.FromContext(ctx); ok {
+		for k, v := range md {
+			header.Set(k, v)
+		}
 	}

-	cf, err := h.newCodec(ct)
+	// set timeout in nanoseconds
+	header.Set("Timeout", fmt.Sprintf("%d", opts.RequestTimeout))
+	// set the content type for the request
+	header.Set("Content-Type", req.ContentType())
+
+	// get codec
+	cf, err := h.newCodec(req.ContentType())
 	if err != nil {
-		return errors.BadRequest("go.micro.client", err.Error())
+		return errors.InternalServerError("go.micro.client", err.Error())
 	}
-	hreq, err := newRequest(ctx, h.opts.Logger, addr, req, ct, cf, req.Body(), opts)
+
+	hreq, err := newRequest(addr, req, cf, req.Body(), opts)
 	if err != nil {
 		return err
 	}

+	hreq.Header = header
+
 	// make the request
-	hrsp, err := h.httpcli.Do(hreq)
+	hrsp, err := h.httpcli.Do(hreq.WithContext(ctx))
 	if err != nil {
-		switch err := err.(type) {
-		case *url.Error:
-			if err, ok := err.Err.(net.Error); ok && err.Timeout() {
-				return errors.Timeout("go.micro.client", err.Error())
-			}
-		case net.Error:
-			if err.Timeout() {
-				return errors.Timeout("go.micro.client", err.Error())
-			}
-		}
 		return errors.InternalServerError("go.micro.client", err.Error())
 	}
-
 	defer hrsp.Body.Close()

-	return h.parseRsp(ctx, hrsp, rsp, opts)
+	return parseRsp(ctx, hrsp, cf, rsp, opts)
 }

 func (h *httpClient) stream(ctx context.Context, addr string, req client.Request, opts client.CallOptions) (client.Stream, error) {
-	ct := req.ContentType()
-	if len(opts.ContentType) > 0 {
-		ct = opts.ContentType
+	var header http.Header
+
+	if md, ok := metadata.FromContext(ctx); ok {
+		header = make(http.Header, len(md)+2)
+		for k, v := range md {
+			header.Set(k, v)
+		}
+	} else {
+		header = make(http.Header, 2)
 	}

+	// set timeout in nanoseconds
+	header.Set("Timeout", fmt.Sprintf("%d", opts.RequestTimeout))
+	// set the content type for the request
+	header.Set("Content-Type", req.ContentType())
+
 	// get codec
-	cf, err := h.newCodec(ct)
+	cf, err := h.newCodec(req.ContentType())
 	if err != nil {
-		return nil, errors.BadRequest("go.micro.client", err.Error())
+		return nil, errors.InternalServerError("go.micro.client", err.Error())
 	}

-	cc, err := (h.httpcli.Transport).(*http.Transport).DialContext(ctx, "tcp", addr)
+	dialAddr := addr
+	u, err := url.Parse(dialAddr)
+	if err == nil && u.Scheme != "" && u.Host != "" {
+		dialAddr = u.Host
+	}
+	cc, err := h.dialer.DialContext(ctx, "tcp", addr)
 	if err != nil {
 		return nil, errors.InternalServerError("go.micro.client", fmt.Sprintf("Error dialing: %v", err))
 	}

 	return &httpStream{
 		address: addr,
-		logger:  h.opts.Logger,
 		context: ctx,
 		closed:  make(chan bool),
 		opts:    opts,
 		conn:    cc,
-		ct:      ct,
-		cf:      cf,
+		codec:   cf,
+		header:  header,
 		reader:  bufio.NewReader(cc),
 		request: req,
 	}, nil
 }

 func (h *httpClient) newCodec(ct string) (codec.Codec, error) {
-	h.RLock()
-	defer h.RUnlock()
-
-	if idx := strings.IndexRune(ct, ';'); idx >= 0 {
-		ct = ct[:idx]
-	}
-
 	if c, ok := h.opts.Codecs[ct]; ok {
 		return c, nil
 	}
@ -304,27 +170,10 @@ func (h *httpClient) newCodec(ct string) (codec.Codec, error) {
 	return nil, codec.ErrUnknownContentType
 }

-func (h *httpClient) Init(opts ...options.Option) error {
-	if len(opts) == 0 && h.init {
-		return nil
-	}
+func (h *httpClient) Init(opts ...client.Option) error {
 	for _, o := range opts {
 		o(&h.opts)
 	}
-
-	if err := h.opts.Tracer.Init(); err != nil {
-		return err
-	}
-	if err := h.opts.Router.Init(); err != nil {
-		return err
-	}
-	if err := h.opts.Logger.Init(); err != nil {
-		return err
-	}
-	if err := h.opts.Meter.Init(); err != nil {
-		return err
-	}
-
 	return nil
 }

@ -332,11 +181,15 @@ func (h *httpClient) Options() client.Options {
 	return h.opts
 }

-func (h *httpClient) NewRequest(service, method string, req interface{}, opts ...options.Option) client.Request {
-	return newHTTPRequest(service, method, req, h.opts.ContentType, opts...)
+func (h *httpClient) NewMessage(topic string, msg interface{}, opts ...client.MessageOption) client.Message {
+	return newHTTPMessage(topic, msg, h.opts.ContentType, opts...)
 }

-func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...options.Option) error {
+func (h *httpClient) NewRequest(service, method string, req interface{}, reqOpts ...client.RequestOption) client.Request {
+	return newHTTPRequest(service, method, req, h.opts.ContentType, reqOpts...)
+}
+
+func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
 	// make a copy of call opts
 	callOpts := h.opts.CallOptions
 	for _, opt := range opts {
@ -353,9 +206,8 @@ func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface
 	} else {
 		// got a deadline so no need to setup context
 		// but we need to set the timeout we pass along
-		if err := options.Set(&callOpts, time.Until(d), ".RequestTimeout"); err != nil {
-			return errors.New("go.micro.client", fmt.Sprintf("%v", err.Error()), 400)
-		}
+		opt := client.WithRequestTimeout(d.Sub(time.Now()))
+		opt(&callOpts)
 	}

 	// should we noop right here?
@ -369,9 +221,9 @@ func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface
 	hcall := h.call

 	// wrap the call in reverse
-	//for i := len(callOpts.CallWrappers); i > 0; i-- {
-	//	hcall = callOpts.CallWrappers[i-1](hcall)
-	//}
+	for i := len(callOpts.CallWrappers); i > 0; i-- {
+		hcall = callOpts.CallWrappers[i-1](hcall)
+	}

 	// use the router passed as a call option, or fallback to the rpc clients router
 	if callOpts.Router == nil {
@ -388,7 +240,18 @@ func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface
 		callOpts.Address = []string{h.opts.Proxy}
 	}

-	var next selector.Next
+	// lookup the route to send the reques to
+	// TODO apply any filtering here
+	routes, err := h.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 {
@ -403,22 +266,6 @@ func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface
 			time.Sleep(t)
 		}

-		if next == nil {
-			var routes []string
-			// lookup the route to send the reques to
-			// TODO apply any filtering here
-			routes, err = h.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
-			}
-		}
-
 		node := next()

 		// make the call
@ -469,28 +316,25 @@ func (h *httpClient) Call(ctx context.Context, req client.Request, rsp interface
 	return gerr
 }

-func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...options.Option) (client.Stream, error) {
-	var err error
-
+func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...client.CallOption) (client.Stream, error) {
 	// make a copy of call opts
 	callOpts := h.opts.CallOptions
-	for _, o := range opts {
-		o(&callOpts)
+	for _, opt := range opts {
+		opt(&callOpts)
 	}

 	// check if we already have a deadline
 	d, ok := ctx.Deadline()
-	if !ok && callOpts.StreamTimeout > time.Duration(0) {
+	if !ok {
 		var cancel context.CancelFunc
 		// no deadline so we create a new one
-		ctx, cancel = context.WithTimeout(ctx, callOpts.StreamTimeout)
+		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
-		if err = options.Set(&callOpts, time.Until(d), ".StreamTimeout"); err != nil {
-			return nil, errors.New("go.micro.client", fmt.Sprintf("%v", err.Error()), 400)
-		}
+		opt := client.WithRequestTimeout(d.Sub(time.Now()))
+		opt(&callOpts)
 	}

 	// should we noop right here?
@ -502,7 +346,10 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...opt

 	/*
 		// make copy of call method
-		hstream := h.stream
+		hstream, err := h.stream()
+		if err != nil {
+			return nil, err
+		}
 		// wrap the call in reverse
 		for i := len(callOpts.CallWrappers); i > 0; i-- {
 			hstream = callOpts.CallWrappers[i-1](hstream)
@ -524,13 +371,24 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...opt
 		callOpts.Address = []string{h.opts.Proxy}
 	}

-	var next selector.Next
+	// lookup the route to send the reques to
+	// TODO apply any filtering here
+	routes, err := h.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, cerr := callOpts.Backoff(ctx, req, i)
-		if cerr != nil {
-			return nil, errors.InternalServerError("go.micro.client", cerr.Error())
+		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
@ -538,37 +396,21 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...opt
 			time.Sleep(t)
 		}

-		if next == nil {
-			var routes []string
-			// lookup the route to send the reques to
-			// TODO apply any filtering here
-			routes, err = h.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
-			}
-		}
-
 		node := next()

-		stream, cerr := h.stream(ctx, node, req, callOpts)
+		stream, err := h.stream(ctx, node, req, callOpts)

 		// record the result of the call to inform future routing decisions
-		if verr := h.opts.Selector.Record(node, cerr); verr != nil {
+		if verr := h.opts.Selector.Record(node, err); verr != nil {
 			return nil, verr
 		}

 		// try and transform the error to a go-micro error
-		if verr, ok := cerr.(*errors.Error); ok {
+		if verr, ok := err.(*errors.Error); ok {
 			return nil, verr
 		}

-		return stream, cerr
+		return stream, err
 	}

 	type response struct {
@ -581,8 +423,8 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...opt

 	for i := 0; i <= callOpts.Retries; i++ {
 		go func() {
-			s, cerr := call(i)
-			ch <- response{s, cerr}
+			s, err := call(i)
+			ch <- response{s, err}
 		}()

 		select {
@ -610,63 +452,119 @@ func (h *httpClient) Stream(ctx context.Context, req client.Request, opts ...opt
 	return nil, grr
 }

+func (h *httpClient) Publish(ctx context.Context, p client.Message, opts ...client.PublishOption) error {
+	options := client.NewPublishOptions(opts...)
+
+	md, ok := metadata.FromContext(ctx)
+	if !ok {
+		md = metadata.New(2)
+	}
+	md["Content-Type"] = p.ContentType()
+	md["Micro-Topic"] = p.Topic()
+
+	cf, err := h.newCodec(p.ContentType())
+	if err != nil {
+		return errors.InternalServerError("go.micro.client", err.Error())
+	}
+
+	var body []byte
+
+	// passed in raw data
+	if d, ok := p.Payload().(*codec.Frame); ok {
+		body = d.Data
+	} else {
+		b := bytes.NewBuffer(nil)
+		if err := cf.Write(b, &codec.Message{Type: codec.Event}, p.Payload()); err != nil {
+			return errors.InternalServerError("go.micro.client", err.Error())
+		}
+		body = b.Bytes()
+	}
+
+	topic := p.Topic()
+
+	// get proxy
+	if prx := os.Getenv("MICRO_PROXY"); len(prx) > 0 {
+		options.Exchange = prx
+	}
+
+	// get the exchange
+	if len(options.Exchange) > 0 {
+		topic = options.Exchange
+	}
+
+	return h.opts.Broker.Publish(ctx, topic, &broker.Message{
+		Header: md,
+		Body:   body,
+	}, broker.PublishContext(ctx))
+}
+
 func (h *httpClient) String() string {
 	return "http"
 }

-func (h *httpClient) Name() string {
-	return h.opts.Name
-}
-
-func NewClient(opts ...options.Option) client.Client {
+func NewClient(opts ...client.Option) client.Client {
 	options := client.NewOptions(opts...)

 	if len(options.ContentType) == 0 {
-		options.ContentType = DefaultContentType
+		options.ContentType = "application/json"
 	}

 	rc := &httpClient{
 		opts: options,
 	}

-	var dialer func(context.Context, string) (net.Conn, error)
-	if v, ok := options.Context.Value(httpDialerKey{}).(*net.Dialer); ok {
-		dialer = func(ctx context.Context, addr string) (net.Conn, error) {
-			return v.DialContext(ctx, "tcp", addr)
-		}
-	}
-	if options.ContextDialer != nil {
-		dialer = options.ContextDialer
-	}
-	if dialer == nil {
-		dialer = func(ctx context.Context, addr string) (net.Conn, error) {
-			return (&net.Dialer{
-				Timeout:   30 * time.Second,
-				KeepAlive: 30 * time.Second,
-			}).DialContext(ctx, "tcp", addr)
-		}
-	}
-
 	if httpcli, ok := options.Context.Value(httpClientKey{}).(*http.Client); ok {
 		rc.httpcli = httpcli
 	} else {
-		// TODO customTransport := http.DefaultTransport.(*http.Transport).Clone()
-		tr := &http.Transport{
-			Proxy: http.ProxyFromEnvironment,
-			DialContext: func(ctx context.Context, network, addr string) (net.Conn, error) {
-				return dialer(ctx, addr)
-			},
-			ForceAttemptHTTP2:     true,
-			MaxConnsPerHost:       100,
-			MaxIdleConns:          20,
-			IdleConnTimeout:       60 * time.Second,
-			TLSHandshakeTimeout:   10 * time.Second,
-			ExpectContinueTimeout: 1 * time.Second,
-			TLSClientConfig:       options.TLSConfig,
-		}
-		rc.httpcli = &http.Client{Transport: tr}
+		rc.httpcli = http.DefaultClient
 	}
+	if dialer, ok := options.Context.Value(httpDialerKey{}).(*net.Dialer); ok {
+		rc.dialer = dialer
+	} else {
+		rc.dialer = &net.Dialer{}
+	}
+
 	c := client.Client(rc)

+	// wrap in reverse
+	for i := len(options.Wrappers); i > 0; i-- {
+		c = options.Wrappers[i-1](c)
+	}
+
 	return c
 }
+
+func parseRsp(ctx context.Context, hrsp *http.Response, cf codec.Codec, rsp interface{}, opts client.CallOptions) error {
+	b, err := ioutil.ReadAll(hrsp.Body)
+	if err != nil {
+		return errors.InternalServerError("go.micro.client", err.Error())
+	}
+
+	if hrsp.StatusCode < 400 {
+		// unmarshal
+		if err := cf.Unmarshal(b, rsp); err != nil {
+			return errors.InternalServerError("go.micro.client", err.Error())
+		}
+		return nil
+	}
+
+	errmap, ok := opts.Context.Value(errorMapKey{}).(map[string]interface{})
+	if !ok || errmap == nil {
+		// user not provide map of errors
+		// id: req.Service() ??
+		return errors.New("go.micro.client", string(b), int32(hrsp.StatusCode))
+	}
+
+	if err, ok = errmap[fmt.Sprintf("%d", hrsp.StatusCode)].(error); !ok {
+		err, ok = errmap["default"].(error)
+	}
+	if !ok {
+		return errors.New("go.micro.client", string(b), int32(hrsp.StatusCode))
+	}
+
+	if cerr := cf.Unmarshal(b, err); cerr != nil {
+		return errors.InternalServerError("go.micro.client", cerr.Error())
+	}
+
+	return err
+}
--- a/http_test.go
+++ b/http_test.go
@ -1,81 +1,30 @@
 package http

 import (
-	"net/url"
-	"strings"
 	"testing"
 )

 type Request struct {
-	Name     string `json:"name"`
-	Field1   string `json:"field1"`
-	ClientID string
-	Field2   string
-	Field3   int64
-}
-
-func TestPathWithHeader(t *testing.T) {
-	req := &Request{Name: "vtolstov", Field1: "field1", ClientID: "1234567890"}
-	p, m, err := newPathRequest(
-		"/api/v1/test?Name={name}&Field1={field1}",
-		"POST",
-		"*",
-		req,
-		nil,
-		map[string]map[string]string{"header": {"ClientID": "true"}},
-	)
-	if err != nil {
-		t.Fatal(err)
-	}
-	u, err := url.Parse(p)
-	if err != nil {
-		t.Fatal(err)
-	}
-	if m != nil {
-		t.Fatal("new struct must be nil")
-	}
-	if u.Query().Get("Name") != "vtolstov" || u.Query().Get("Field1") != "field1" {
-		t.Fatalf("invalid values %v", u.Query())
-	}
-}
-
-func TestPathValues(t *testing.T) {
-	req := &Request{Name: "vtolstov", Field1: "field1"}
-	p, m, err := newPathRequest("/api/v1/test?Name={name}&Field1={field1}", "POST", "*", req, nil, nil)
-	if err != nil {
-		t.Fatal(err)
-	}
-	u, err := url.Parse(p)
-	if err != nil {
-		t.Fatal(err)
-	}
-	_ = m
-	if u.Query().Get("Name") != "vtolstov" || u.Query().Get("Field1") != "field1" {
-		t.Fatalf("invalid values %v", u.Query())
-	}
+	Name   string `json:"name"`
+	Field1 string
+	Field2 string
+	Field3 int64
 }

 func TestValidPath(t *testing.T) {
 	req := &Request{Name: "vtolstov", Field1: "field1", Field2: "field2", Field3: 10}
-	p, m, err := newPathRequest("/api/v1/{name}/list", "GET", "", req, nil, nil)
+	p, m, err := newPathRequest("/api/v1/{name}/list", "GET", "", req)
 	if err != nil {
 		t.Fatal(err)
 	}
-	u, err := url.Parse(p)
-	if err != nil {
-		t.Fatal(err)
-	}
-	_ = m
-	parts := strings.Split(u.RawQuery, "&")
-	if len(parts) != 3 {
-		t.Fatalf("invalid path: %v", parts)
-	}
+	_, _ = p, m
 }

 func TestInvalidPath(t *testing.T) {
 	req := &Request{Name: "vtolstov", Field1: "field1", Field2: "field2", Field3: 10}
-	_, _, err := newPathRequest("/api/v1/{xname}/list", "GET", "", req, nil, nil)
+	p, m, err := newPathRequest("/api/v1/{xname}/list", "GET", "", req)
 	if err == nil {
-		t.Fatal("path param must not be filled")
+		t.Fatalf("path param must not be filled")
 	}
+	_, _ = p, m
 }
--- a/message.go
+++ b/message.go
@ -0,0 +1,36 @@
+package http
+
+import (
+	"github.com/unistack-org/micro/v3/client"
+)
+
+type httpMessage struct {
+	topic       string
+	contentType string
+	payload     interface{}
+}
+
+func newHTTPMessage(topic string, payload interface{}, contentType string, opts ...client.MessageOption) client.Message {
+	options := client.NewMessageOptions(opts...)
+	if len(options.ContentType) == 0 {
+		options.ContentType = contentType
+	}
+
+	return &httpMessage{
+		payload:     payload,
+		topic:       topic,
+		contentType: options.ContentType,
+	}
+}
+
+func (h *httpMessage) ContentType() string {
+	return h.contentType
+}
+
+func (h *httpMessage) Topic() string {
+	return h.topic
+}
+
+func (h *httpMessage) Payload() interface{} {
+	return h.payload
+}
--- a/options.go
+++ b/options.go
@ -1,11 +1,11 @@
 package http

 import (
+	"crypto/tls"
 	"net"
 	"net/http"

-	"go.unistack.org/micro/v4/metadata"
-	"go.unistack.org/micro/v4/options"
+	"github.com/unistack-org/micro/v3/client"
 )

 var (
@ -27,100 +27,71 @@ var (
 )

 type poolMaxStreams struct{}
-
-// PoolMaxStreams maximum streams on a connectioin
-func PoolMaxStreams(n int) options.Option {
-	return options.ContextOption(poolMaxStreams{}, n)
-}
-
 type poolMaxIdle struct{}
-
-// PoolMaxIdle maximum idle conns of a pool
-func PoolMaxIdle(d int) options.Option {
-	return options.ContextOption(poolMaxIdle{}, d)
-}
-
+type codecsKey struct{}
+type tlsAuth struct{}
 type maxRecvMsgSizeKey struct{}
-
-// MaxRecvMsgSize set the maximum size of message that client can receive.
-func MaxRecvMsgSize(s int) options.Option {
-	return options.ContextOption(maxRecvMsgSizeKey{}, s)
-}
-
 type maxSendMsgSizeKey struct{}

+// maximum streams on a connectioin
+func PoolMaxStreams(n int) client.Option {
+	return client.SetOption(poolMaxStreams{}, n)
+}
+
+// maximum idle conns of a pool
+func PoolMaxIdle(d int) client.Option {
+	return client.SetOption(poolMaxIdle{}, d)
+}
+
+// AuthTLS should be used to setup a secure authentication using TLS
+func AuthTLS(t *tls.Config) client.Option {
+	return client.SetOption(tlsAuth{}, t)
+}
+
+//
+// MaxRecvMsgSize set the maximum size of message that client can receive.
+func MaxRecvMsgSize(s int) client.Option {
+	return client.SetOption(maxRecvMsgSizeKey{}, s)
+}
+
+//
 // MaxSendMsgSize set the maximum size of message that client can send.
-func MaxSendMsgSize(s int) options.Option {
-	return options.ContextOption(maxSendMsgSizeKey{}, s)
+func MaxSendMsgSize(s int) client.Option {
+	return client.SetOption(maxSendMsgSizeKey{}, s)
 }

 type httpClientKey struct{}

-// nolint: golint
-// HTTPClient pass http.Client option to client Call
-func HTTPClient(c *http.Client) options.Option {
-	return options.ContextOption(httpClientKey{}, c)
+func HTTPClient(c *http.Client) client.Option {
+	return client.SetOption(httpClientKey{}, c)
 }

 type httpDialerKey struct{}

-// nolint: golint
-// HTTPDialer pass net.Dialer option to client
-func HTTPDialer(d *net.Dialer) options.Option {
-	return options.ContextOption(httpDialerKey{}, d)
+func HTTPDialer(d *net.Dialer) client.Option {
+	return client.SetOption(httpDialerKey{}, d)
 }

 type methodKey struct{}

-// Method pass method option to client Call
-func Method(m string) options.Option {
-	return options.ContextOption(methodKey{}, m)
+func Method(m string) client.CallOption {
+	return client.SetCallOption(methodKey{}, m)
 }

 type pathKey struct{}

-// Path spcecifies path option to client Call
-func Path(p string) options.Option {
-	return options.ContextOption(pathKey{}, p)
+func Path(p string) client.CallOption {
+	return client.SetCallOption(pathKey{}, p)
 }

 type bodyKey struct{}

-// Body specifies body option to client Call
-func Body(b string) options.Option {
-	return options.ContextOption(bodyKey{}, b)
+func Body(b string) client.CallOption {
+	return client.SetCallOption(bodyKey{}, b)
 }

 type errorMapKey struct{}

-func ErrorMap(m map[string]interface{}) options.Option {
-	return options.ContextOption(errorMapKey{}, m)
-}
-
-type structTagsKey struct{}
-
-// StructTags pass tags slice option to client Call
-func StructTags(tags []string) options.Option {
-	return options.ContextOption(structTagsKey{}, tags)
-}
-
-type metadataKey struct{}
-
-// Metadata pass metadata to client Call
-func Metadata(md metadata.Metadata) options.Option {
-	return options.ContextOption(metadataKey{}, md)
-}
-
-type cookieKey struct{}
-
-// Cookie pass cookie to client Call
-func Cookie(cookies ...string) options.Option {
-	return options.ContextOption(cookieKey{}, cookies)
-}
-
-type headerKey struct{}
-
-// Header pass cookie to client Call
-func Header(headers ...string) options.Option {
-	return options.ContextOption(headerKey{}, headers)
+func ErrorMap(m map[string]interface{}) client.CallOption {
+	return client.SetCallOption(errorMapKey{}, m)
 }
--- a/request.go
+++ b/request.go
@ -1,9 +1,8 @@
 package http

 import (
-	"go.unistack.org/micro/v4/client"
-	"go.unistack.org/micro/v4/codec"
-	"go.unistack.org/micro/v4/options"
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/codec"
 )

 type httpRequest struct {
@ -14,8 +13,9 @@ type httpRequest struct {
 	opts        client.RequestOptions
 }

-func newHTTPRequest(service, method string, request interface{}, contentType string, opts ...options.Option) client.Request {
+func newHTTPRequest(service, method string, request interface{}, contentType string, opts ...client.RequestOption) client.Request {
 	options := client.NewRequestOptions(opts...)
+
 	if len(options.ContentType) == 0 {
 		options.ContentType = contentType
 	}
--- a/stream.go
+++ b/stream.go
@ -4,34 +4,34 @@ import (
 	"bufio"
 	"context"
 	"fmt"
-	"io"
 	"net"
 	"net/http"
 	"sync"

-	"go.unistack.org/micro/v4/client"
-	"go.unistack.org/micro/v4/codec"
-	"go.unistack.org/micro/v4/errors"
-	"go.unistack.org/micro/v4/logger"
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/codec"
+	"github.com/unistack-org/micro/v3/errors"
 )

 // Implements the streamer interface
 type httpStream struct {
+	sync.RWMutex
+	address string
+	opts    client.CallOptions
+	codec   codec.Codec
+	context context.Context
+	header  http.Header
+	seq     uint64
+	closed  chan bool
 	err     error
 	conn    net.Conn
-	cf      codec.Codec
-	context context.Context
-	logger  logger.Logger
-	request client.Request
-	closed  chan bool
 	reader  *bufio.Reader
-	address string
-	ct      string
-	opts    client.CallOptions
-	sync.RWMutex
+	request client.Request
 }

-var errShutdown = fmt.Errorf("connection is shut down")
+var (
+	errShutdown = fmt.Errorf("connection is shut down")
+)

 func (h *httpStream) isClosed() bool {
 	select {
@ -54,10 +54,6 @@ func (h *httpStream) Response() client.Response {
 	return nil
 }

-func (h *httpStream) SendMsg(msg interface{}) error {
-	return h.Send(msg)
-}
-
 func (h *httpStream) Send(msg interface{}) error {
 	h.Lock()
 	defer h.Unlock()
@ -67,16 +63,14 @@ func (h *httpStream) Send(msg interface{}) error {
 		return errShutdown
 	}

-	hreq, err := newRequest(h.context, h.logger, h.address, h.request, h.ct, h.cf, msg, h.opts)
+	hreq, err := newRequest(h.address, h.request, h.codec, msg, h.opts)
 	if err != nil {
 		return err
 	}

-	return hreq.Write(h.conn)
-}
+	hreq.Header = h.header

-func (h *httpStream) RecvMsg(msg interface{}) error {
-	return h.Recv(msg)
+	return hreq.Write(h.conn)
 }

 func (h *httpStream) Recv(msg interface{}) error {
@ -94,7 +88,7 @@ func (h *httpStream) Recv(msg interface{}) error {
 	}
 	defer hrsp.Body.Close()

-	return h.parseRsp(h.context, h.logger, hrsp, h.cf, msg, h.opts)
+	return parseRsp(h.context, hrsp, h.codec, msg, h.opts)
 }

 func (h *httpStream) Error() error {
@ -103,10 +97,6 @@ func (h *httpStream) Error() error {
 	return h.err
 }

-func (h *httpStream) CloseSend() error {
-	return h.Close()
-}
-
 func (h *httpStream) Close() error {
 	select {
 	case <-h.closed:
@ -116,60 +106,3 @@ func (h *httpStream) Close() error {
 		return h.conn.Close()
 	}
 }
-
-func (h *httpStream) parseRsp(ctx context.Context, log logger.Logger, hrsp *http.Response, cf codec.Codec, rsp interface{}, opts client.CallOptions) error {
-	var err error
-	var buf []byte
-
-	// fast path return
-	if hrsp.StatusCode == http.StatusNoContent {
-		return nil
-	}
-
-	select {
-	case <-ctx.Done():
-		err = ctx.Err()
-	default:
-		if hrsp.Body != nil {
-			buf, err = io.ReadAll(hrsp.Body)
-			if err != nil {
-				if log.V(logger.ErrorLevel) {
-					log.Error(ctx, "failed to read body", err)
-				}
-				return errors.InternalServerError("go.micro.client", string(buf))
-			}
-		}
-
-		if log.V(logger.DebugLevel) {
-			log.Debug(ctx, fmt.Sprintf("response %s with %v", buf, hrsp.Header))
-		}
-
-		if hrsp.StatusCode < 400 {
-			if err = cf.Unmarshal(buf, rsp); err != nil {
-				return errors.InternalServerError("go.micro.client", err.Error())
-			}
-			return nil
-		}
-
-		var rerr interface{}
-		errmap, ok := opts.Context.Value(errorMapKey{}).(map[string]interface{})
-		if ok && errmap != nil {
-			if rerr, ok = errmap[fmt.Sprintf("%d", hrsp.StatusCode)].(error); !ok {
-				rerr, ok = errmap["default"].(error)
-			}
-		}
-		if !ok || rerr == nil {
-			return errors.New("go.micro.client", string(buf), int32(hrsp.StatusCode))
-		}
-
-		if cerr := cf.Unmarshal(buf, rerr); cerr != nil {
-			return errors.InternalServerError("go.micro.client", cerr.Error())
-		}
-
-		if err, ok = rerr.(error); !ok {
-			err = &Error{rerr}
-		}
-	}
-
-	return err
-}
--- a/util.go
+++ b/util.go
@ -1,72 +1,35 @@
 package http

 import (
-	"context"
 	"fmt"
-	"io"
 	"net/http"
-	"net/url"
 	"reflect"
 	"strings"
 	"sync"

-	"go.unistack.org/micro/v4/client"
-	"go.unistack.org/micro/v4/errors"
-	"go.unistack.org/micro/v4/logger"
-	"go.unistack.org/micro/v4/metadata"
-	rutil "go.unistack.org/micro/v4/util/reflect"
+	rutil "github.com/unistack-org/micro/v3/util/reflect"
+	util "github.com/unistack-org/micro/v3/util/router"
 )

 var (
-	templateCache = make(map[string][]string)
+	templateCache = make(map[string]util.Template)
 	mu            sync.RWMutex
 )

-// Error struct holds error
-type Error struct {
-	err interface{}
-}
-
-// Error func for error interface
-func (err *Error) Error() string {
-	return fmt.Sprintf("%v", err.err)
-}
-
-func GetError(err error) interface{} {
-	if rerr, ok := err.(*Error); ok {
-		return rerr.err
-	}
-	return err
-}
-
-func newPathRequest(path string, method string, body string, msg interface{}, tags []string, parameters map[string]map[string]string) (string, interface{}, error) {
+func newPathRequest(path string, method string, body string, msg interface{}) (string, interface{}, error) {
 	// parse via https://github.com/googleapis/googleapis/blob/master/google/api/http.proto definition
 	tpl, err := newTemplate(path)
 	if err != nil {
 		return "", nil, err
 	}

-	if len(tpl) > 0 && msg == nil {
-		return "", nil, fmt.Errorf("nil message but path params requested: %v", path)
+	if len(tpl.Fields) == 0 {
+		return path, msg, nil
 	}

-	fieldsmapskip := make(map[string]struct{})
-	fieldsmap := make(map[string]string, len(tpl))
-	for _, v := range tpl {
-		var vs, ve int
-		for i := 0; i < len(v); i++ {
-			switch v[i] {
-			case '{':
-				vs = i + 1
-			case '}':
-				ve = i
-			}
-			if ve != 0 {
-				fieldsmap[v[vs:ve]] = ""
-				vs = 0
-				ve = 0
-			}
-		}
+	fieldsmap := make(map[string]string, len(tpl.Fields))
+	for _, v := range tpl.Fields {
+		fieldsmap[v] = ""
 	}

 	nmsg, err := rutil.Zero(msg)
@ -85,7 +48,7 @@ func newPathRequest(path string, method string, body string, msg interface{}, ta
 		tnmsg = tnmsg.Elem()
 	}

-	values := url.Values{}
+	values := make(map[string]string)
 	// copy cycle
 	for i := 0; i < tmsg.NumField(); i++ {
 		val := tmsg.Field(i)
@ -93,149 +56,52 @@ func newPathRequest(path string, method string, body string, msg interface{}, ta
 			continue
 		}
 		fld := tmsg.Type().Field(i)
-		// Skip unexported fields.
-		if fld.PkgPath != "" {
-			continue
-		}
-		/* check for empty PkgPath can be replaced with new method IsExported
-		if !fld.IsExported() {
-			continue
-		}
-		*/
-		t := &tag{}
-		for _, tn := range tags {
-			ts, ok := fld.Tag.Lookup(tn)
-			if !ok {
-				continue
-			}
-
-			tp := strings.Split(ts, ",")
-			// special
-			switch tn {
-			case "protobuf": // special
-				for _, p := range tp {
-					if idx := strings.Index(p, "name="); idx > 0 {
-						t = &tag{key: tn, name: p[idx:]}
-					}
-				}
-			default:
-				t = &tag{key: tn, name: tp[0]}
-			}
-			if t.name != "" {
-				break
-			}
-		}
-
-		cname := t.name
-		if cname == "" {
-			cname = fld.Name
-			// fallback to lowercase
-			t.name = strings.ToLower(fld.Name)
-		}
-		if _, ok := parameters["header"][cname]; ok {
-			continue
-		}
-		if _, ok := parameters["cookie"][cname]; ok {
-			continue
-		}
-
-		if !val.IsValid() || val.IsZero() {
-			continue
-		}
-
-		// nolint: gocritic, nestif
-		if _, ok := fieldsmap[t.name]; ok {
-			switch val.Type().Kind() {
-			case reflect.Slice:
-				for idx := 0; idx < val.Len(); idx++ {
-					values.Add(t.name, getParam(val.Index(idx)))
-				}
-				fieldsmapskip[t.name] = struct{}{}
-			default:
-				fieldsmap[t.name] = getParam(val)
-			}
-		} else if (body == "*" || body == t.name) && method != http.MethodGet {
-			if tnmsg.Field(i).CanSet() {
-				tnmsg.Field(i).Set(val)
-			}
-		} else {
-			if val.Type().Kind() == reflect.Slice {
-				for idx := 0; idx < val.Len(); idx++ {
-					values.Add(t.name, getParam(val.Index(idx)))
-				}
-			} else {
-				values.Add(t.name, getParam(val))
-			}
+		lfield := strings.ToLower(fld.Name)
+		if _, ok := fieldsmap[lfield]; ok {
+			fieldsmap[lfield] = fmt.Sprintf("%v", val.Interface())
+		} else if body == "*" || body == lfield && method != http.MethodGet {
+			tnmsg.Field(i).Set(val)
+		} else if method == http.MethodGet {
+			values[lfield] = fmt.Sprintf("%v", val.Interface())
 		}
 	}

 	// check not filled stuff
 	for k, v := range fieldsmap {
-		_, ok := fieldsmapskip[k]
-		if !ok && v == "" {
-			return "", nil, fmt.Errorf("path param %s not filled", k)
+		if v == "" {
+			return "", nil, fmt.Errorf("path param %s not filled %s", k, v)
 		}
 	}

 	var b strings.Builder
-
-	for _, fld := range tpl {
+	for _, fld := range tpl.Pool {
 		_, _ = b.WriteRune('/')
-		// nolint: nestif
-		var vs, ve, vf int
-		var pholder bool
-		for i := 0; i < len(fld); i++ {
-			switch fld[i] {
-			case '{':
-				vs = i + 1
-			case '}':
-				ve = i
-			}
-			// nolint: nestif
-			if vs > 0 && ve != 0 {
-				if vm, ok := fieldsmap[fld[vs:ve]]; ok {
-					if vm != "" {
-						_, _ = b.WriteString(fld[vf : vs-1])
-						_, _ = b.WriteString(vm)
-						vf = ve + 1
-					}
-				} else {
-					_, _ = b.WriteString(fld)
-				}
-				vs = 0
-				ve = 0
-				pholder = true
-			}
-		}
-		if !pholder {
+		if v, ok := fieldsmap[fld]; ok {
+			_, _ = b.WriteString(v)
+		} else {
 			_, _ = b.WriteString(fld)
 		}
 	}

-	if len(values) > 0 {
-		_, _ = b.WriteRune('?')
-		_, _ = b.WriteString(values.Encode())
-	}
-
-	if rutil.IsZero(nmsg) && !isEmptyStruct(nmsg) {
-		return b.String(), nil, nil
+	if method == http.MethodGet {
+		idx := 0
+		for k, v := range values {
+			if idx == 0 {
+				_, _ = b.WriteRune('?')
+			} else {
+				_, _ = b.WriteRune('&')
+			}
+			_, _ = b.WriteString(k)
+			_, _ = b.WriteRune('=')
+			_, _ = b.WriteString(v)
+			idx++
+		}
 	}

 	return b.String(), nmsg, nil
 }

-func isEmptyStruct(v interface{}) bool {
-	val := reflect.ValueOf(v)
-	if val.Kind() == reflect.Ptr {
-		val = val.Elem()
-	}
-	return val.Kind() == reflect.Struct && val.NumField() == 0
-}
-
-func newTemplate(path string) ([]string, error) {
-	if len(path) == 0 || path[0] != '/' {
-		return nil, fmt.Errorf("path must starts with /")
-	}
+func newTemplate(path string) (util.Template, error) {
 	mu.RLock()
 	tpl, ok := templateCache[path]
 	if ok {
@ -244,121 +110,15 @@ func newTemplate(path string) ([]string, error) {
 	}
 	mu.RUnlock()

-	tpl = strings.Split(path[1:], "/")
+	rule, err := util.Parse(path)
+	if err != nil {
+		return tpl, err
+	}
+
+	tpl = rule.Compile()
 	mu.Lock()
 	templateCache[path] = tpl
 	mu.Unlock()

 	return tpl, nil
 }
-
-func (h *httpClient) parseRsp(ctx context.Context, hrsp *http.Response, rsp interface{}, opts client.CallOptions) error {
-	var err error
-	var buf []byte
-
-	// fast path return
-	if hrsp.StatusCode == http.StatusNoContent {
-		return nil
-	}
-
-	if opts.ResponseMetadata != nil {
-		*opts.ResponseMetadata = metadata.New(len(hrsp.Header))
-		for k, v := range hrsp.Header {
-			opts.ResponseMetadata.Set(k, strings.Join(v, ","))
-		}
-	}
-
-	select {
-	case <-ctx.Done():
-		err = ctx.Err()
-	default:
-		ct := DefaultContentType
-
-		if htype := hrsp.Header.Get("Content-Type"); htype != "" {
-			ct = htype
-		}
-
-		if hrsp.Body != nil {
-			buf, err = io.ReadAll(hrsp.Body)
-			if err != nil {
-				if h.opts.Logger.V(logger.ErrorLevel) {
-					h.opts.Logger.Error(ctx, "failed to read body", err)
-				}
-				return errors.InternalServerError("go.micro.client", string(buf))
-			}
-		}
-
-		cf, cerr := h.newCodec(ct)
-		if cerr != nil {
-			if h.opts.Logger.V(logger.DebugLevel) {
-				h.opts.Logger.Debug(ctx, fmt.Sprintf("response with %v unknown content-type %s %s", hrsp.Header, ct, buf))
-			}
-			return errors.InternalServerError("go.micro.client", cerr.Error())
-		}
-
-		if h.opts.Logger.V(logger.DebugLevel) {
-			h.opts.Logger.Debug(ctx, fmt.Sprintf("response %s with %v", buf, hrsp.Header))
-		}
-
-		// succeseful response
-		if hrsp.StatusCode < 400 {
-			if err = cf.Unmarshal(buf, rsp); err != nil {
-				return errors.InternalServerError("go.micro.client", err.Error())
-			}
-			return nil
-		}
-
-		// response with error
-		var rerr interface{}
-		errmap, ok := opts.Context.Value(errorMapKey{}).(map[string]interface{})
-		if ok && errmap != nil {
-			rerr, ok = errmap[fmt.Sprintf("%d", hrsp.StatusCode)]
-			if !ok {
-				rerr, ok = errmap["default"]
-			}
-		}
-
-		if !ok || rerr == nil {
-			return errors.New("go.micro.client", string(buf), int32(hrsp.StatusCode))
-		}
-
-		if cerr := cf.Unmarshal(buf, rerr); cerr != nil {
-			return errors.InternalServerError("go.micro.client", cerr.Error())
-		}
-
-		if err, ok = rerr.(error); !ok {
-			err = &Error{rerr}
-		}
-
-	}
-
-	return err
-}
-
-type tag struct {
-	key  string
-	name string
-}
-
-func getParam(val reflect.Value) string {
-	var v string
-	switch val.Kind() {
-	case reflect.Ptr:
-		switch reflect.Indirect(val).Type().String() {
-		case
-			"wrapperspb.BoolValue",
-			"wrapperspb.BytesValue",
-			"wrapperspb.DoubleValue",
-			"wrapperspb.FloatValue",
-			"wrapperspb.Int32Value", "wrapperspb.Int64Value",
-			"wrapperspb.StringValue",
-			"wrapperspb.UInt32Value", "wrapperspb.UInt64Value":
-			if eva := reflect.Indirect(val).FieldByName("Value"); eva.IsValid() {
-				v = getParam(eva)
-			}
-		}
-	default:
-		v = fmt.Sprintf("%v", val.Interface())
-	}
-	return v
-}
--- a/util_test.go
+++ b/util_test.go
@ -1,131 +0,0 @@
-package http
-
-import (
-	"net/url"
-	"testing"
-)
-
-func TestParsing(t *testing.T) {
-	type Message struct {
-		IIN string `protobuf:"bytes,1,opt,name=iin,proto3" json:"iin"`
-	}
-
-	omsg := &Message{IIN: "5555"}
-
-	for _, m := range []string{"POST"} {
-		body := ""
-		path, nmsg, err := newPathRequest("/users/iin/{iin}/push-notifications", m, body, omsg, []string{"protobuf", "json"}, nil)
-		if err != nil {
-			t.Fatal(err)
-		}
-		u, err := url.Parse(path)
-		if err != nil {
-			t.Fatal(err)
-		}
-		_ = nmsg
-		if u.Path != "/users/iin/5555/push-notifications" {
-			t.Fatalf("newPathRequest invalid path %s", u.Path)
-		}
-		if nmsg != nil {
-			t.Fatalf("new message must be nil: %v\n", nmsg)
-		}
-	}
-}
-
-func TestNewPathRequest(t *testing.T) {
-	type Message struct {
-		Name string `json:"name"`
-		Val1 string `protobuf:"bytes,1,opt,name=val1,proto3" json:"val1"`
-		Val3 []string
-		Val2 int64
-	}
-
-	omsg := &Message{Name: "test_name", Val1: "test_val1", Val2: 100, Val3: []string{"slice"}}
-
-	for _, m := range []string{"POST", "PUT", "PATCH", "GET", "DELETE"} {
-		body := ""
-		path, nmsg, err := newPathRequest("/v1/test", m, body, omsg, []string{"protobuf", "json"}, nil)
-		if err != nil {
-			t.Fatal(err)
-		}
-		u, err := url.Parse(path)
-		if err != nil {
-			t.Fatal(err)
-		}
-		vals := u.Query()
-		if v, ok := vals["name"]; !ok || v[0] != "test_name" {
-			t.Fatalf("invalid path: %v nmsg: %v", path, nmsg)
-		}
-	}
-}
-
-func TestNewPathRequestWithEmptyBody(t *testing.T) {
-	val := struct{}{}
-	cases := []string{
-		"",
-		"*",
-		"{}",
-		"nil",
-		`{"type": "invalid"}`,
-	}
-
-	for _, body := range cases {
-		for _, m := range []string{"POST", "PUT", "PATCH", "GET", "DELETE"} {
-			path, nmsg, err := newPathRequest("/v1/test", m, body, val, []string{"protobuf", "json"}, nil)
-			if err != nil {
-				t.Fatal(err)
-			}
-			if nmsg == nil {
-				t.Fatalf("invalid path: nil nmsg")
-			}
-
-			u, err := url.Parse(path)
-			if err != nil {
-				t.Fatal(err)
-			}
-			vals := u.Query()
-			if len(vals) != 0 {
-				t.Fatalf("invalid path: %v nmsg: %v", path, nmsg)
-			}
-		}
-	}
-}
-
-func TestNewPathVarRequest(t *testing.T) {
-	type Message struct {
-		Name string `json:"name"`
-		Val1 string `protobuf:"bytes,1,opt,name=val1,proto3" json:"val1"`
-		Val3 []string
-		Val2 int64
-	}
-
-	omsg := &Message{Name: "test_name", Val1: "test_val1", Val2: 100, Val3: []string{"slice"}}
-
-	for _, m := range []string{"POST", "PUT", "PATCH", "GET", "DELETE"} {
-		body := ""
-		if m != "GET" {
-			body = "*"
-		}
-		path, nmsg, err := newPathRequest("/v1/test/{val1}", m, body, omsg, []string{"protobuf", "json"}, nil)
-		if err != nil {
-			t.Fatal(err)
-		}
-		u, err := url.Parse(path)
-		if err != nil {
-			t.Fatal(err)
-		}
-		if m != "GET" {
-			if _, ok := nmsg.(*Message); !ok {
-				t.Fatalf("invalid nmsg: %#+v\n", nmsg)
-			}
-			if nmsg.(*Message).Name != "test_name" {
-				t.Fatalf("invalid nmsg: %v nmsg: %v", path, nmsg)
-			}
-		} else {
-			vals := u.Query()
-			if v, ok := vals["val2"]; !ok || v[0] != "100" {
-				t.Fatalf("invalid path: %v nmsg: %v", path, nmsg)
-			}
-		}
-	}
-}