.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'

.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 ./...

.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        

.github/dependabot.yml

@@ -0,0 +1,19 @@
+# To get started with Dependabot version updates, you'll need to specify which
+# package ecosystems to update and where the package manifests are located.
+# Please see the documentation for all configuration options:
+# https://help.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
+
+version: 2
+updates:
+
+  # Maintain dependencies for GitHub Actions
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+
+  # Maintain dependencies for Golang
+  - package-ecosystem: "gomod"
+    directory: "/"
+    schedule:
+      interval: "daily"

.github/workflows/autoapprove.yml

@@ -0,0 +1,20 @@
+name: "autoapprove"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  autoapprove:
+    runs-on: ubuntu-latest
+    steps:
+      - name: approve
+        uses: hmarr/auto-approve-action@v3
+        if: github.actor == 'vtolstov' || github.actor == 'dependabot[bot]'
+        id: approve
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/automerge.yml

@@ -0,0 +1,21 @@
+name: "automerge"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  automerge:
+    runs-on: ubuntu-latest
+    if: github.actor == 'vtolstov'
+    steps:
+      - name: merge
+        id: merge
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.TOKEN}}

.github/workflows/build.yml

@@ -0,0 +1,47 @@
+name: build
+on:
+ push:
+    branches:
+    - master
+    - v3
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+    - name: setup
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.17
+    - name: checkout
+      uses: actions/checkout@v3
+    - name: cache
+      uses: actions/cache@v3
+      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@v3
+      - name: lint
+        uses: golangci/golangci-lint-action@v3.3.1
+        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/codeql-analysis.yml

@@ -0,0 +1,78 @@
+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "codeql"
+
+on:
+  workflow_run:
+    workflows: ["prbuild"]
+    types:
+      - completed
+  push:
+    branches: [ master, v3 ]
+  pull_request:
+    # The branches below must be a subset of the branches above
+    branches: [ master, v3 ]
+  schedule:
+    - cron: '34 1 * * 0'
+
+jobs:
+  analyze:
+    name: analyze
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      security-events: write
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'go' ]
+        # CodeQL supports [ 'cpp', 'csharp', 'go', 'java', 'javascript', 'python' ]
+        # Learn more:
+        # https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning#changing-the-languages-that-are-analyzed
+
+    steps:
+    - name: checkout
+      uses: actions/checkout@v3
+    - name: setup
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.17
+    # Initializes the CodeQL tools for scanning.
+    - name: init
+      uses: github/codeql-action/init@v2
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+        # queries: ./path/to/local/query, your-org/your-repo/queries@main
+
+    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: autobuild
+      uses: github/codeql-action/autobuild@v2
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 https://git.io/JvXDl
+
+    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
+    #    and modify them (or add more) to build your code if your project
+    #    uses a compiled language
+
+    #- run: |
+    #   make bootstrap
+    #   make release
+
+    - name: analyze
+      uses: github/codeql-action/analyze@v2

.github/workflows/dependabot-automerge.yml

@@ -0,0 +1,27 @@
+name: "dependabot-automerge"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  automerge:
+    runs-on: ubuntu-latest
+    if: github.actor == 'dependabot[bot]'
+    steps:
+      - name: metadata
+        id: metadata
+        uses: dependabot/fetch-metadata@v1.3.5
+        with:
+          github-token: "${{ secrets.TOKEN }}"
+      - name: merge
+        id: merge
+        if: ${{contains(steps.metadata.outputs.dependency-names, 'go.unistack.org')}}
+        run: gh pr merge --auto --merge "$PR_URL"
+        env:
+          PR_URL: ${{github.event.pull_request.html_url}}
+          GITHUB_TOKEN: ${{secrets.TOKEN}}

.github/workflows/pr.yml

@@ -0,0 +1,47 @@
+name: prbuild
+on:
+  pull_request:
+    branches:
+    - master
+    - v3
+jobs:
+  test:
+    name: test
+    runs-on: ubuntu-latest
+    steps:
+    - name: setup
+      uses: actions/setup-go@v3
+      with:
+        go-version: 1.17
+    - name: checkout
+      uses: actions/checkout@v3
+    - name: cache
+      uses: actions/cache@v3
+      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@v3
+      - name: lint
+        uses: golangci/golangci-lint-action@v3.3.1
+        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

.gitignore

@@ -1,24 +0,0 @@
-# Binaries for programs and plugins
-*.exe
-*.exe~
-*.dll
-*.so
-*.dylib
-bin
-
-# Test binary, built with `go test -c`
-*.test
-
-# Output of the go coverage tool, specifically when used with LiteIDE
-*.out
-
-# Dependency directories (remove the comment below to include it)
-# vendor/
-
-# Go workspace file
-go.work
-
-# General
-.DS_Store
-.idea
-.vscode

.golangci.yml

@@ -1,5 +1,44 @@
 run:
-  concurrency: 8
+  concurrency: 4
   deadline: 5m
   issues-exit-code: 1
   tests: true
+
+linters-settings:
+  govet:
+    check-shadowing: true
+    enable:
+      - fieldalignment
+
+linters:
+  enable:
+    - govet
+    - deadcode
+    - errcheck
+    - govet
+    - ineffassign
+    - staticcheck
+    - structcheck
+    - typecheck
+    - unused
+    - varcheck
+    - bodyclose
+    - gci
+    - goconst
+    - gocritic
+    - gosimple
+    - gofmt
+    - gofumpt
+    - goimports
+    - golint
+    - gosec
+    - makezero
+    - misspell
+    - nakedret
+    - nestif
+    - nilerr
+    - noctx
+    - prealloc
+    - unconvert
+    - unparam
+  disable-all: false

codec.go

@@ -1,6 +1,8 @@
 package grpc
 
 import (
+	"io"
+
 	"go.unistack.org/micro/v3/codec"
 	"google.golang.org/grpc/encoding"
 )
@@ -47,3 +49,29 @@ func (w *wrapGrpcCodec) Unmarshal(d []byte, v interface{}, opts ...codec.Option)
 	}
 	return w.Codec.Unmarshal(d, v)
 }
+
+func (w *wrapGrpcCodec) ReadHeader(conn io.Reader, m *codec.Message, mt codec.MessageType) error {
+	return nil
+}
+
+func (w *wrapGrpcCodec) ReadBody(conn io.Reader, v interface{}) error {
+	if m, ok := v.(*codec.Frame); ok {
+		_, err := conn.Read(m.Data)
+		return err
+	}
+	return codec.ErrInvalidMessage
+}
+
+func (w *wrapGrpcCodec) Write(conn io.Writer, m *codec.Message, v interface{}) error {
+	// if we don't have a body
+	if v != nil {
+		b, err := w.Marshal(v)
+		if err != nil {
+			return err
+		}
+		m.Body = b
+	}
+	// write the body using the framing codec
+	_, err := conn.Write(m.Body)
+	return err
+}

generate.go

@@ -1,4 +0,0 @@
-package grpc
-
-//go:generate go install google.golang.org/grpc/cmd/protoc-gen-go-grpc@latest
-//go:generate sh -c "protoc -I./proto -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v3) -I. --go-grpc_out=paths=source_relative:./proto --go_out=paths=source_relative:./proto proto/test.proto"

go.mod

@@ -1,19 +1,12 @@
 module go.unistack.org/micro-server-grpc/v3
 
-go 1.22.7
+go 1.16
-
-toolchain go1.23.3
 
 require (
-	go.unistack.org/micro/v3 v3.10.109
+	github.com/golang/protobuf v1.5.2
-	golang.org/x/net v0.31.0
+	go.unistack.org/micro/v3 v3.9.18
-	google.golang.org/grpc v1.68.0
+	golang.org/x/net v0.0.0-20220722155237-a158d28d115b
-	google.golang.org/protobuf v1.35.2
+	google.golang.org/genproto v0.0.0-20220310185008-1973136f34c6 // indirect
-)
+	google.golang.org/grpc v1.51.0
-
+	google.golang.org/protobuf v1.28.1
-require (
-	go.unistack.org/micro-proto/v3 v3.4.1 // indirect
-	golang.org/x/sys v0.27.0 // indirect
-	golang.org/x/text v0.20.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20241118233622-e639e219e697 // indirect
 )

go.sum

@@ -1,20 +1,197 @@
-github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek=
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
-github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
-go.unistack.org/micro-proto/v3 v3.4.1 h1:UTjLSRz2YZuaHk9iSlVqqsA50JQNAEK2ZFboGqtEa9Q=
+github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY=
-go.unistack.org/micro-proto/v3 v3.4.1/go.mod h1:okx/cnOhzuCX0ggl/vToatbCupi0O44diiiLLsZ93Zo=
+github.com/buger/jsonparser v1.1.1/go.mod h1:6RYKKt7H4d4+iWqouImQ9R2FZql3VbhNgx27UK13J/0=
-go.unistack.org/micro/v3 v3.10.109 h1:WVta6KrkPoFQcH/H+Mum4G35m7mmmK2Gs3yizrzXv+w=
+github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-go.unistack.org/micro/v3 v3.10.109/go.mod h1:YzMldzHN9Ei+zy5t/Psu7RUWDZwUfrNYiStSQtTz90g=
+github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
-golang.org/x/net v0.31.0 h1:68CPQngjLL0r2AlUKiSxtQFKvzRVbnzLwMUn5SzcLHo=
+github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-golang.org/x/net v0.31.0/go.mod h1:P4fl1q7dY2hnZFxEk4pPSkDHF+QqjitcnDjUQyMM+pM=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
-golang.org/x/sys v0.27.0 h1:wBqf8DvsY9Y/2P8gAfPDEYNuS30J4lPHJxXSb/nJZ+s=
+github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
-golang.org/x/sys v0.27.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
-golang.org/x/text v0.20.0 h1:gK/Kv2otX8gz+wn7Rmb3vT96ZwuoxnQlY+HlJVj7Qug=
+github.com/cncf/udpa/go v0.0.0-20210930031921-04548b0d99d4/go.mod h1:6pvJx4me5XPnfI9Z40ddWsdw2W/uZgQLFXToKeRcDiI=
-golang.org/x/text v0.20.0/go.mod h1:D4IsuqiFMhST5bX19pQ9ikHC2GsaKyk/oF+pn3ducp4=
+github.com/cncf/xds/go v0.0.0-20210312221358-fbca930ec8ed/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20241118233622-e639e219e697 h1:LWZqQOEjDyONlF1H6afSWpAL/znlREo2tHfLoe+8LMA=
+github.com/cncf/xds/go v0.0.0-20210805033703-aa0b78936158/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20241118233622-e639e219e697/go.mod h1:5uTbfoYQed2U9p3KIj2/Zzm02PYhndfdmML0qC3q3FU=
+github.com/cncf/xds/go v0.0.0-20210922020428-25de7278fc84/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-google.golang.org/grpc v1.68.0 h1:aHQeeJbo8zAkAa3pRzrVjZlbz6uSfeOXlJNQM0RAbz0=
+github.com/cncf/xds/go v0.0.0-20211001041855-01bcc9b48dfe/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-google.golang.org/grpc v1.68.0/go.mod h1:fmSPC5AsjSBCK54MyHRx48kpOti1/jRfOlwEWywNjWA=
+github.com/cncf/xds/go v0.0.0-20211011173535-cb28da3451f1/go.mod h1:eXthEFrGJvWHgFFCl3hGmgk+/aYT6PnTQLykKQRLhEs=
-google.golang.org/protobuf v1.35.2 h1:8Ar7bF+apOIoThw1EdZl0p1oWvMqTHmpA2fRTyZO8io=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
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+golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
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+golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
+golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
+google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
+google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
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+google.golang.org/genproto v0.0.0-20220107163113-42d7afdf6368/go.mod h1:5CzLGKJ67TSI2B9POpiiyGha0AjJvZIUgRMt1dSmuhc=
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+google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
+google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
+google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
+google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
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grpc.go

@@ -1,5 +1,5 @@
 // Package grpc provides a grpc server
-package grpc
+package grpc // import "go.unistack.org/micro-server-grpc/v3"
 
 import (
 	"context"
@@ -7,39 +7,31 @@ import (
 	"fmt"
 	"net"
 	"reflect"
-	"slices"
+	"runtime/debug"
 	"sort"
 	"strconv"
 	"strings"
 	"sync"
-	"sync/atomic"
 	"time"
 
-	greflection "google.golang.org/grpc/reflection"
-	reflectionv1pb "google.golang.org/grpc/reflection/grpc_reflection_v1"
-
 	// nolint: staticcheck
+	oldproto "github.com/golang/protobuf/proto"
 	"go.unistack.org/micro/v3/broker"
 	"go.unistack.org/micro/v3/codec"
 	"go.unistack.org/micro/v3/errors"
 	"go.unistack.org/micro/v3/logger"
-	"go.unistack.org/micro/v3/metadata"
+	metadata "go.unistack.org/micro/v3/metadata"
-	"go.unistack.org/micro/v3/meter"
-	"go.unistack.org/micro/v3/options"
 	"go.unistack.org/micro/v3/register"
-	"go.unistack.org/micro/v3/semconv"
 	"go.unistack.org/micro/v3/server"
-	msync "go.unistack.org/micro/v3/sync"
-	"go.unistack.org/micro/v3/tracer"
 	"golang.org/x/net/netutil"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/credentials"
 	"google.golang.org/grpc/encoding"
 	gmetadata "google.golang.org/grpc/metadata"
 	"google.golang.org/grpc/peer"
 	"google.golang.org/grpc/status"
 	"google.golang.org/protobuf/proto"
-	"google.golang.org/protobuf/protoadapt"
 )
 
 const (
@@ -47,46 +39,30 @@ const (
 )
 
 /*
-type ServerReflection struct {
+type grpcServerReflection struct {
 	srv *grpc.Server
 	s   *serverReflectionServer
 }
 */
 
-type streamWrapper struct {
+type grpcServer struct {
-	ctx context.Context
+	handlers    map[string]server.Handler
-	grpc.ServerStream
+	srv         *grpc.Server
-}
+	exit        chan chan error
-
+	wg          *sync.WaitGroup
-func (w *streamWrapper) Context() context.Context {
+	rsvc        *register.Service
-	if w.ctx != nil {
+	subscribers map[*subscriber][]broker.Subscriber
-		return w.ctx
+	rpc         *rServer
-	}
+	opts        server.Options
-	return w.ServerStream.Context()
-}
-
-type Server struct {
-	handlers       map[string]server.Handler
-	srv            *grpc.Server
-	exit           chan chan error
-	wg             *msync.WaitGroup
-	rsvc           *register.Service
-	subscribers    map[*subscriber][]broker.Subscriber
-	rpc            *rServer
-	opts           server.Options
-	unknownHandler grpc.StreamHandler
 	sync.RWMutex
-	stateLive   *atomic.Uint32
+	started    bool
-	stateReady  *atomic.Uint32
+	registered bool
-	stateHealth *atomic.Uint32
+	reflection bool
-	started     bool
-	registered  bool
-	// reflection  bool
 }
 
-func newServer(opts ...server.Option) *Server {
+func newGRPCServer(opts ...server.Option) server.Server {
 	// create a grpc server
-	g := &Server{
+	g := &grpcServer{
 		opts: server.NewOptions(opts...),
 		rpc: &rServer{
 			serviceMap: make(map[string]*service),
@@ -94,13 +70,8 @@ func newServer(opts ...server.Option) *Server {
 		handlers:    make(map[string]server.Handler),
 		subscribers: make(map[*subscriber][]broker.Subscriber),
 		exit:        make(chan chan error),
-		stateLive:   &atomic.Uint32{},
-		stateReady:  &atomic.Uint32{},
-		stateHealth: &atomic.Uint32{},
 	}
 
-	g.opts.Meter = g.opts.Meter.Clone(meter.Labels("type", "grpc"))
-
 	return g
 }
 
@@ -120,7 +91,7 @@ func (r grpcRouter) ServeRequest(ctx context.Context, req server.Request, rsp se
 
 */
 
-func (g *Server) configure(opts ...server.Option) error {
+func (g *grpcServer) configure(opts ...server.Option) error {
 	g.Lock()
 	defer g.Unlock()
 
@@ -128,6 +99,27 @@ func (g *Server) configure(opts ...server.Option) error {
 		o(&g.opts)
 	}
 
+	if err := g.opts.Register.Init(); err != nil {
+		return err
+	}
+	if err := g.opts.Broker.Init(); err != nil {
+		return err
+	}
+	if err := g.opts.Tracer.Init(); err != nil {
+		return err
+	}
+	if err := g.opts.Logger.Init(); err != nil {
+		return err
+	}
+	if err := g.opts.Meter.Init(); err != nil {
+		return err
+	}
+	if err := g.opts.Transport.Init(); err != nil {
+		return err
+	}
+
+	g.wg = g.opts.Wait
+
 	if g.opts.Context != nil {
 		if codecs, ok := g.opts.Context.Value(codecsKey{}).(map[string]encoding.Codec); ok && codecs != nil {
 			for k, v := range codecs {
@@ -136,10 +128,6 @@ func (g *Server) configure(opts ...server.Option) error {
 		}
 	}
 
-	for _, k := range g.opts.Codecs {
-		encoding.RegisterCodec(&wrapMicroCodec{k})
-	}
-
 	maxMsgSize := g.getMaxMsgSize()
 
 	gopts := []grpc.ServerOption{
@@ -148,6 +136,10 @@ func (g *Server) configure(opts ...server.Option) error {
 		grpc.UnknownServiceHandler(g.handler),
 	}
 
+	if creds := g.getCredentials(); creds != nil {
+		gopts = append(gopts, grpc.Creds(creds))
+	}
+
 	if opts := g.getGrpcOptions(); opts != nil {
 		gopts = append(opts, gopts...)
 	}
@@ -162,19 +154,8 @@ func (g *Server) configure(opts ...server.Option) error {
 	}
 	g.srv = grpc.NewServer(gopts...)
 
-	if v, ok := g.opts.Context.Value(reflectionKey{}).(Reflector); ok {
+	if v, ok := g.opts.Context.Value(reflectionKey{}).(bool); ok {
-		reflectionv1pb.RegisterServerReflectionServer(
+		g.reflection = v
-			g.srv,
-			greflection.NewServerV1(greflection.ServerOptions{
-				Services:           v,
-				DescriptorResolver: v,
-				ExtensionResolver:  v,
-			}),
-		)
-	}
-
-	if h, ok := g.opts.Context.Value(unknownServiceHandlerKey{}).(grpc.StreamHandler); ok {
-		g.unknownHandler = h
 	}
 
 	if restart {
@@ -184,15 +165,25 @@ func (g *Server) configure(opts ...server.Option) error {
 	return nil
 }
 
-func (g *Server) getMaxMsgSize() int {
+func (g *grpcServer) getMaxMsgSize() int {
+	if g.opts.Context == nil {
+		return codec.DefaultMaxMsgSize
+	}
 	s, ok := g.opts.Context.Value(maxMsgSizeKey{}).(int)
 	if !ok {
-		return 4 * 1024 * 1024
+		return codec.DefaultMaxMsgSize
 	}
 	return s
 }
 
-func (g *Server) getGrpcOptions() []grpc.ServerOption {
+func (g *grpcServer) getCredentials() credentials.TransportCredentials {
+	if g.opts.TLSConfig != nil {
+		return credentials.NewTLS(g.opts.TLSConfig)
+	}
+	return nil
+}
+
+func (g *grpcServer) getGrpcOptions() []grpc.ServerOption {
 	if g.opts.Context == nil {
 		return nil
 	}
@@ -205,58 +196,52 @@ func (g *Server) getGrpcOptions() []grpc.ServerOption {
 	return opts
 }
 
-func (g *Server) handler(srv interface{}, stream grpc.ServerStream) error {
+func (g *grpcServer) handler(srv interface{}, stream grpc.ServerStream) (err error) {
-	var err error
-
-	ctx := stream.Context()
-
 	fullMethod, ok := grpc.MethodFromServerStream(stream)
 	if !ok {
 		return status.Errorf(codes.Internal, "method does not exist in context")
 	}
 
+	serviceName, methodName, err := serviceMethod(fullMethod)
+	if err != nil {
+		return status.New(codes.InvalidArgument, err.Error()).Err()
+	}
+
+	defer func() {
+		if r := recover(); r != nil {
+			g.RLock()
+			config := g.opts
+			g.RUnlock()
+			if config.Logger.V(logger.ErrorLevel) {
+				config.Logger.Errorf(config.Context, "panic in %s.%s recovered: %v", serviceName, methodName, r)
+				config.Logger.Error(config.Context, string(debug.Stack()))
+			}
+			err = errors.InternalServerError(g.opts.Name, "panic in %s.%s recovered: %v", serviceName, methodName, r)
+		} else if err != nil {
+			g.RLock()
+			config := g.opts
+			g.RUnlock()
+			if config.Logger.V(logger.ErrorLevel) {
+				config.Logger.Errorf(config.Context, "grpc handler %s.%s got error: %s", serviceName, methodName, err)
+			}
+		}
+	}()
+
+	if g.wg != nil {
+		g.wg.Add(1)
+		defer g.wg.Done()
+	}
+
 	// get grpc metadata
-	gmd, ok := gmetadata.FromIncomingContext(ctx)
+	gmd, ok := gmetadata.FromIncomingContext(stream.Context())
 	if !ok {
 		gmd = gmetadata.MD{}
 	}
 
-	var serviceName, methodName string
-	serviceName, methodName, err = serviceMethod(fullMethod)
-	if err != nil {
-		err = status.New(codes.InvalidArgument, err.Error()).Err()
-		return err
-	}
-
-	endpointName := serviceName + "/" + methodName
-
-	ts := time.Now()
-	var sp tracer.Span
-	if !slices.Contains(tracer.DefaultSkipEndpoints, endpointName) {
-		ctx, sp = g.opts.Tracer.Start(ctx, "rpc-server",
-			tracer.WithSpanKind(tracer.SpanKindServer),
-			tracer.WithSpanLabels(
-				"endpoint", endpointName,
-				"server", "grpc",
-			),
-		)
-		defer func() {
-			st := status.Convert(err)
-			if st != nil || st.Code() != codes.OK {
-				sp.SetStatus(tracer.SpanStatusError, err.Error())
-			}
-			sp.Finish()
-		}()
-	}
-
 	md := metadata.New(len(gmd))
 	for k, v := range gmd {
-		md[k] = strings.Join(v, ", ")
+		md.Set(k, strings.Join(v, ", "))
 	}
-	md.Set("Path", fullMethod)
-	md.Set("Micro-Server", "grpc")
-	md.Set(metadata.HeaderEndpoint, methodName)
-	md.Set(metadata.HeaderService, serviceName)
 
 	var td string
 	// timeout for server deadline
@@ -294,43 +279,17 @@ func (g *Server) handler(srv interface{}, stream grpc.ServerStream) error {
 	}
 
 	// create new context
-	ctx = metadata.NewIncomingContext(ctx, md)
+	ctx := metadata.NewIncomingContext(stream.Context(), md)
-	ctx = metadata.NewOutgoingContext(ctx, metadata.New(0))
-
-	stream = &streamWrapper{ctx, stream}
-
-	if !slices.Contains(meter.DefaultSkipEndpoints, endpointName) {
-		g.opts.Meter.Counter(semconv.ServerRequestInflight, "endpoint", endpointName, "server", "grpc").Inc()
-		defer func() {
-			te := time.Since(ts)
-			g.opts.Meter.Summary(semconv.ServerRequestLatencyMicroseconds, "endpoint", endpointName, "server", "grpc").Update(te.Seconds())
-			g.opts.Meter.Histogram(semconv.ServerRequestDurationSeconds, "endpoint", endpointName, "server", "grpc").Update(te.Seconds())
-			g.opts.Meter.Counter(semconv.ServerRequestInflight, "endpoint", endpointName, "server", "grpc").Dec()
-
-			st := status.Convert(err)
-			if st == nil || st.Code() == codes.OK {
-				g.opts.Meter.Counter(semconv.ServerRequestTotal, "endpoint", endpointName, "server", "grpc", "status", "success", "code", strconv.Itoa(int(codes.OK))).Inc()
-			} else {
-				g.opts.Meter.Counter(semconv.ServerRequestTotal, "endpoint", endpointName, "server", "grpc", "status", "failure", "code", strconv.Itoa(int(st.Code()))).Inc()
-			}
-		}()
-	}
-
-	if g.opts.Wait != nil {
-		g.opts.Wait.Add(1)
-		defer g.opts.Wait.Done()
-	}
 
 	// get peer from context
-	if p, ok := peer.FromContext(ctx); ok {
+	if p, ok := peer.FromContext(stream.Context()); ok {
 		md.Set("Remote", p.Addr.String())
 		ctx = peer.NewContext(ctx, p)
 	}
 
 	// set the timeout if we have it
 	if len(td) > 0 {
-		var n uint64
+		if n, err := strconv.ParseUint(td, 10, 64); err == nil {
-		if n, err = strconv.ParseUint(td, 10, 64); err == nil {
 			var cancel context.CancelFunc
 			ctx, cancel = context.WithTimeout(ctx, time.Duration(n))
 			defer cancel()
@@ -341,37 +300,57 @@ func (g *Server) handler(srv interface{}, stream grpc.ServerStream) error {
 	svc := g.rpc.serviceMap[serviceName]
 	g.rpc.mu.RUnlock()
 
-	if svc == nil {
+	/*
-		if g.unknownHandler != nil {
+		if svc == nil && g.reflection && methodName == "ServerReflectionInfo" {
-			err = g.unknownHandler(srv, stream)
+			rfl := &grpcServerReflection{srv: g.srv, s: &serverReflectionServer{s: g.srv}}
-			return err
+			svc = &service{}
+			svc.typ = reflect.TypeOf(rfl)
+			svc.rcvr = reflect.ValueOf(rfl)
+			svc.name = reflect.Indirect(svc.rcvr).Type().Name()
+			svc.method = make(map[string]*methodType)
+			typ := reflect.TypeOf(rfl)
+			if me, ok := typ.MethodByName("ServerReflectionInfo"); ok {
+				g.rpc.mu.Lock()
+				ep, err := prepareEndpoint(me)
+				if ep != nil && err != nil {
+					svc.method["ServerReflectionInfo"] = ep
+				} else if err != nil {
+					return status.New(codes.Unimplemented, err.Error()).Err()
+				}
+				g.rpc.mu.Unlock()
+			}
 		}
-		err = status.New(codes.Unimplemented, fmt.Sprintf("unknown service %s", serviceName)).Err()
+	*/
-		return err
+
+	if svc == nil {
+		if g.opts.Context != nil {
+			if h, ok := g.opts.Context.Value(unknownServiceHandlerKey{}).(grpc.StreamHandler); ok {
+				return h(srv, stream)
+			}
+		}
+		return status.New(codes.Unimplemented, fmt.Sprintf("unknown service %s", serviceName)).Err()
 	}
 
 	mtype := svc.method[methodName]
 	if mtype == nil {
-		if g.unknownHandler != nil {
+		if g.opts.Context != nil {
-			err = g.unknownHandler(srv, stream)
+			if h, ok := g.opts.Context.Value(unknownServiceHandlerKey{}).(grpc.StreamHandler); ok {
-			return err
+				return h(srv, stream)
+			}
 		}
-		err = status.New(codes.Unimplemented, fmt.Sprintf("unknown service method %s.%s", serviceName, methodName)).Err()
+		return status.New(codes.Unimplemented, fmt.Sprintf("unknown service method %s.%s", serviceName, methodName)).Err()
-		return err
 	}
 
 	// process unary
 	if !mtype.stream {
-		err = g.processRequest(ctx, stream, svc, mtype, ct)
+		return g.processRequest(ctx, stream, svc, mtype, ct)
-	} else {
-		// process stream
-		err = g.processStream(ctx, stream, svc, mtype, ct)
 	}
 
-	return err
+	// process stream
+	return g.processStream(ctx, stream, svc, mtype, ct)
 }
 
-func (g *Server) processRequest(ctx context.Context, stream grpc.ServerStream, service *service, mtype *methodType, ct string) error {
+func (g *grpcServer) processRequest(ctx context.Context, stream grpc.ServerStream, service *service, mtype *methodType, ct string) error {
 	// for {
 	var err error
 	var argv, replyv reflect.Value
@@ -405,7 +384,6 @@ func (g *Server) processRequest(ctx context.Context, stream grpc.ServerStream, s
 		service:     g.opts.Name,
 		contentType: ct,
 		method:      fmt.Sprintf("%s.%s", service.name, mtype.method.Name),
-		endpoint:    fmt.Sprintf("%s.%s", service.name, mtype.method.Name),
 		payload:     argv.Interface(),
 	}
 	// define the handler func
@@ -420,11 +398,10 @@ func (g *Server) processRequest(ctx context.Context, stream grpc.ServerStream, s
 		return err
 	}
 
-	g.opts.Hooks.EachNext(func(hook options.Hook) {
+	// wrap the handler func
-		if h, ok := hook.(server.HookHandler); ok {
+	for i := len(g.opts.HdlrWrappers); i > 0; i-- {
-			fn = h(fn)
+		fn = g.opts.HdlrWrappers[i-1](fn)
-		}
+	}
-	})
 
 	statusCode := codes.OK
 	statusDesc := ""
@@ -446,7 +423,7 @@ func (g *Server) processRequest(ctx context.Context, stream grpc.ServerStream, s
 			// user defined error that proto based we can attach it to grpc status
 			statusCode = convertCode(appErr)
 			statusDesc = appErr.Error()
-			errStatus, err = status.New(statusCode, statusDesc).WithDetails(protoadapt.MessageV1Of(verr))
+			errStatus, err = status.New(statusCode, statusDesc).WithDetails(oldproto.MessageV1(verr))
 			if err != nil {
 				return err
 			}
@@ -457,7 +434,7 @@ func (g *Server) processRequest(ctx context.Context, stream grpc.ServerStream, s
 			config := g.opts
 			g.RUnlock()
 			if config.Logger.V(logger.ErrorLevel) {
-				config.Logger.Error(config.Context, "handler error will not be transferred properly, must return *errors.Error or proto.Message")
+				config.Logger.Warn(config.Context, "handler error will not be transferred properly, must return *errors.Error or proto.Message")
 			}
 			// default case user pass own error type that not proto based
 			statusCode = convertCode(verr)
@@ -473,16 +450,60 @@ func (g *Server) processRequest(ctx context.Context, stream grpc.ServerStream, s
 	}
 
 	return status.New(statusCode, statusDesc).Err()
+	//	}
 }
 
-func (g *Server) processStream(ctx context.Context, stream grpc.ServerStream, service *service, mtype *methodType, ct string) error {
+/*
+type reflectStream struct {
+	stream server.Stream
+}
+
+func (s *reflectStream) Send(rsp *grpcreflect.ServerReflectionResponse) error {
+	return s.stream.Send(rsp)
+}
+
+func (s *reflectStream) Recv() (*grpcreflect.ServerReflectionRequest, error) {
+	req := &grpcreflect.ServerReflectionRequest{}
+	err := s.stream.Recv(req)
+	return req, err
+}
+
+func (s *reflectStream) SetHeader(gmetadata.MD) error {
+	return nil
+}
+
+func (s *reflectStream) SendHeader(gmetadata.MD) error {
+	return nil
+}
+
+func (s *reflectStream) SetTrailer(gmetadata.MD) {
+
+}
+
+func (s *reflectStream) Context() context.Context {
+	return s.stream.Context()
+}
+
+func (s *reflectStream) SendMsg(m interface{}) error {
+	return s.stream.Send(m)
+}
+
+func (s *reflectStream) RecvMsg(m interface{}) error {
+	return s.stream.Recv(m)
+}
+
+func (g *grpcServerReflection) ServerReflectionInfo(ctx context.Context, stream server.Stream) error {
+	return g.s.ServerReflectionInfo(&reflectStream{stream})
+}
+*/
+
+func (g *grpcServer) processStream(ctx context.Context, stream grpc.ServerStream, service *service, mtype *methodType, ct string) error {
 	opts := g.opts
 
 	r := &rpcRequest{
 		service:     opts.Name,
 		contentType: ct,
 		method:      fmt.Sprintf("%s.%s", service.name, mtype.method.Name),
-		endpoint:    fmt.Sprintf("%s.%s", service.name, mtype.method.Name),
 		stream:      true,
 	}
 
@@ -504,11 +525,9 @@ func (g *Server) processStream(ctx context.Context, stream grpc.ServerStream, se
 		return nil
 	}
 
-	opts.Hooks.EachNext(func(hook options.Hook) {
+	for i := len(opts.HdlrWrappers); i > 0; i-- {
-		if h, ok := hook.(server.HookHandler); ok {
+		fn = opts.HdlrWrappers[i-1](fn)
-			fn = h(fn)
+	}
-		}
-	})
 
 	statusCode := codes.OK
 	statusDesc := ""
@@ -531,7 +550,7 @@ func (g *Server) processStream(ctx context.Context, stream grpc.ServerStream, se
 			// user defined error that proto based we can attach it to grpc status
 			statusCode = convertCode(appErr)
 			statusDesc = appErr.Error()
-			errStatus, err = status.New(statusCode, statusDesc).WithDetails(protoadapt.MessageV1Of(verr))
+			errStatus, err = status.New(statusCode, statusDesc).WithDetails(oldproto.MessageV1(verr))
 			if err != nil {
 				return err
 			}
@@ -551,7 +570,7 @@ func (g *Server) processStream(ctx context.Context, stream grpc.ServerStream, se
 	return status.New(statusCode, statusDesc).Err()
 }
 
-func (g *Server) newCodec(ct string) (codec.Codec, error) {
+func (g *grpcServer) newCodec(ct string) (codec.Codec, error) {
 	g.RLock()
 	defer g.RUnlock()
 
@@ -566,7 +585,7 @@ func (g *Server) newCodec(ct string) (codec.Codec, error) {
 	return nil, codec.ErrUnknownContentType
 }
 
-func (g *Server) Options() server.Options {
+func (g *grpcServer) Options() server.Options {
 	g.RLock()
 	opts := g.opts
 	g.RUnlock()
@@ -574,15 +593,15 @@ func (g *Server) Options() server.Options {
 	return opts
 }
 
-func (g *Server) Init(opts ...server.Option) error {
+func (g *grpcServer) Init(opts ...server.Option) error {
 	return g.configure(opts...)
 }
 
-func (g *Server) NewHandler(h interface{}, opts ...server.HandlerOption) server.Handler {
+func (g *grpcServer) NewHandler(h interface{}, opts ...server.HandlerOption) server.Handler {
 	return newRPCHandler(h, opts...)
 }
 
-func (g *Server) Handle(h server.Handler) error {
+func (g *grpcServer) Handle(h server.Handler) error {
 	if err := g.rpc.register(h.Handler()); err != nil {
 		return err
 	}
@@ -591,11 +610,11 @@ func (g *Server) Handle(h server.Handler) error {
 	return nil
 }
 
-func (g *Server) NewSubscriber(topic string, sb interface{}, opts ...server.SubscriberOption) server.Subscriber {
+func (g *grpcServer) NewSubscriber(topic string, sb interface{}, opts ...server.SubscriberOption) server.Subscriber {
 	return newSubscriber(topic, sb, opts...)
 }
 
-func (g *Server) Subscribe(sb server.Subscriber) error {
+func (g *grpcServer) Subscribe(sb server.Subscriber) error {
 	sub, ok := sb.(*subscriber)
 	if !ok {
 		return fmt.Errorf("invalid subscriber: expected *subscriber")
@@ -619,7 +638,7 @@ func (g *Server) Subscribe(sb server.Subscriber) error {
 	return nil
 }
 
-func (g *Server) Register() error {
+func (g *grpcServer) Register() error {
 	g.RLock()
 	rsvc := g.rsvc
 	config := g.opts
@@ -676,7 +695,7 @@ func (g *Server) Register() error {
 
 	if !registered {
 		if config.Logger.V(logger.InfoLevel) {
-			config.Logger.Info(config.Context, fmt.Sprintf("Register [%s] Registering node: %s", config.Register.String(), service.Nodes[0].ID))
+			config.Logger.Infof(config.Context, "Register [%s] Registering node: %s", config.Register.String(), service.Nodes[0].ID)
 		}
 	}
 
@@ -693,13 +712,38 @@ func (g *Server) Register() error {
 	g.Lock()
 	defer g.Unlock()
 
+	for sb := range g.subscribers {
+		handler := g.createSubHandler(sb, config)
+		var opts []broker.SubscribeOption
+		if queue := sb.Options().Queue; len(queue) > 0 {
+			opts = append(opts, broker.SubscribeGroup(queue))
+		}
+
+		subCtx := config.Context
+		if cx := sb.Options().Context; cx != nil {
+			subCtx = cx
+		}
+		opts = append(opts, broker.SubscribeContext(subCtx))
+		opts = append(opts, broker.SubscribeAutoAck(sb.Options().AutoAck))
+		opts = append(opts, broker.SubscribeBodyOnly(sb.Options().BodyOnly))
+
+		if config.Logger.V(logger.InfoLevel) {
+			config.Logger.Infof(config.Context, "Subscribing to topic: %s", sb.Topic())
+		}
+		sub, err := config.Broker.Subscribe(subCtx, sb.Topic(), handler, opts...)
+		if err != nil {
+			return err
+		}
+		g.subscribers[sb] = []broker.Subscriber{sub}
+	}
+
 	g.registered = true
 	g.rsvc = service
 
 	return nil
 }
 
-func (g *Server) Deregister() error {
+func (g *grpcServer) Deregister() error {
 	var err error
 
 	g.RLock()
@@ -712,7 +756,7 @@ func (g *Server) Deregister() error {
 	}
 
 	if config.Logger.V(logger.InfoLevel) {
-		config.Logger.Info(config.Context, "Deregistering node: "+service.Nodes[0].ID)
+		config.Logger.Infof(config.Context, "Deregistering node: %s", service.Nodes[0].ID)
 	}
 
 	if err := server.DefaultDeregisterFunc(service, config); err != nil {
@@ -736,11 +780,11 @@ func (g *Server) Deregister() error {
 			go func(s broker.Subscriber) {
 				defer wg.Done()
 				if config.Logger.V(logger.InfoLevel) {
-					config.Logger.Info(config.Context, "Unsubscribing from topic: "+s.Topic())
+					config.Logger.Infof(config.Context, "Unsubscribing from topic: %s", s.Topic())
 				}
 				if err := s.Unsubscribe(g.opts.Context); err != nil {
 					if config.Logger.V(logger.ErrorLevel) {
-						config.Logger.Error(config.Context, "Unsubscribing from topic: "+s.Topic(), err)
+						config.Logger.Errorf(config.Context, "Unsubscribing from topic: %s err: %v", s.Topic(), err)
 					}
 				}
 			}(sub)
@@ -753,7 +797,7 @@ func (g *Server) Deregister() error {
 	return nil
 }
 
-func (g *Server) Start() error {
+func (g *grpcServer) Start() error {
 	g.RLock()
 	if g.started {
 		g.RUnlock()
@@ -763,6 +807,10 @@ func (g *Server) Start() error {
 
 	config := g.Options()
 
+	for _, k := range config.Codecs {
+		encoding.RegisterCodec(&wrapMicroCodec{k})
+	}
+
 	// micro: config.Transport.Listen(config.Address)
 	var ts net.Listener
 	var err error
@@ -787,7 +835,7 @@ func (g *Server) Start() error {
 	}
 
 	if config.Logger.V(logger.InfoLevel) {
-		config.Logger.Info(config.Context, "Server [grpc] Listening on "+ts.Addr().String())
+		config.Logger.Infof(config.Context, "Server [grpc] Listening on %s", ts.Addr().String())
 	}
 	g.Lock()
 	g.opts.Address = ts.Addr().String()
@@ -801,13 +849,13 @@ func (g *Server) Start() error {
 		// connect to the broker
 		if err = config.Broker.Connect(config.Context); err != nil {
 			if config.Logger.V(logger.ErrorLevel) {
-				config.Logger.Error(config.Context, fmt.Sprintf("broker [%s] connect error", config.Broker.String()), err)
+				config.Logger.Errorf(config.Context, "Broker [%s] connect error: %v", config.Broker.String(), err)
 			}
 			return err
 		}
 
 		if config.Logger.V(logger.InfoLevel) {
-			config.Logger.Info(config.Context, fmt.Sprintf("broker [%s] Connected to %s", config.Broker.String(), config.Broker.Address()))
+			config.Logger.Infof(config.Context, "Broker [%s] Connected to %s", config.Broker.String(), config.Broker.Address())
 		}
 	}
 
@@ -815,36 +863,29 @@ func (g *Server) Start() error {
 	// nolint: nestif
 	if err = g.opts.RegisterCheck(config.Context); err != nil {
 		if config.Logger.V(logger.ErrorLevel) {
-			config.Logger.Error(config.Context, fmt.Sprintf("Server %s-%s register check error", config.Name, config.ID), err)
+			config.Logger.Errorf(config.Context, "Server %s-%s register check error: %s", config.Name, config.ID, err)
 		}
 	} else {
 		// announce self to the world
 		if err = g.Register(); err != nil {
 			if config.Logger.V(logger.ErrorLevel) {
-				config.Logger.Error(config.Context, "Server register error", err)
+				config.Logger.Errorf(config.Context, "Server register error: %v", err)
 			}
 		}
 	}
 
-	if err = g.subscribe(); err != nil {
-		return err
-	}
-
 	// micro: go ts.Accept(s.accept)
 	go func() {
 		if err = g.srv.Serve(ts); err != nil {
 			if config.Logger.V(logger.ErrorLevel) {
-				config.Logger.Error(config.Context, "gRPC Server start error", err)
+				config.Logger.Errorf(config.Context, "gRPC Server start error: %v", err)
 			}
 			if err = g.Stop(); err != nil {
 				if config.Logger.V(logger.ErrorLevel) {
-					config.Logger.Error(config.Context, "gRPC Server stop error", err)
+					config.Logger.Errorf(config.Context, "gRPC Server stop error: %v", err)
 				}
 			}
 		}
-		g.stateLive.Store(1)
-		g.stateReady.Store(1)
-		g.stateHealth.Store(1)
 	}()
 
 	go func() {
@@ -871,23 +912,23 @@ func (g *Server) Start() error {
 				// nolint: nestif
 				if rerr != nil && registered {
 					if config.Logger.V(logger.ErrorLevel) {
-						config.Logger.Error(config.Context, fmt.Sprintf("Server %s-%s register check error, deregister it", config.Name, config.ID), rerr)
+						config.Logger.Errorf(config.Context, "Server %s-%s register check error: %s, deregister it", config.Name, config.ID, rerr)
 					}
 					// deregister self in case of error
 					if err = g.Deregister(); err != nil {
 						if config.Logger.V(logger.ErrorLevel) {
-							config.Logger.Error(config.Context, fmt.Sprintf("Server %s-%s deregister error", config.Name, config.ID), err)
+							config.Logger.Errorf(config.Context, "Server %s-%s deregister error: %s", config.Name, config.ID, err)
 						}
 					}
 				} else if rerr != nil && !registered {
 					if config.Logger.V(logger.ErrorLevel) {
-						config.Logger.Error(config.Context, fmt.Sprintf("Server %s-%s register check error", config.Name, config.ID), rerr)
+						config.Logger.Errorf(config.Context, "Server %s-%s register check error: %s", config.Name, config.ID, rerr)
 					}
 					continue
 				}
 				if err = g.Register(); err != nil {
 					if config.Logger.V(logger.ErrorLevel) {
-						config.Logger.Error(config.Context, fmt.Sprintf("Server %s-%s register error", config.Name, config.ID), err)
+						config.Logger.Errorf(config.Context, "Server %s-%s register error: %s", config.Name, config.ID, err)
 					}
 				}
 			// wait for exit
@@ -899,13 +940,13 @@ func (g *Server) Start() error {
 		// deregister self
 		if err = g.Deregister(); err != nil {
 			if config.Logger.V(logger.ErrorLevel) {
-				config.Logger.Error(config.Context, "Server deregister error", err)
+				config.Logger.Errorf(config.Context, "Server deregister error: %v", err)
 			}
 		}
 
 		// wait for waitgroup
-		if g.opts.Wait != nil {
+		if g.wg != nil {
-			g.opts.Wait.Wait()
+			g.wg.Wait()
 		}
 
 		// stop the grpc server
@@ -914,30 +955,24 @@ func (g *Server) Start() error {
 		go func() {
 			g.srv.GracefulStop()
 			close(exit)
-			g.stateLive.Store(0)
-			g.stateReady.Store(0)
-			g.stateHealth.Store(0)
 		}()
 
 		select {
 		case <-exit:
-		case <-time.After(g.opts.GracefulTimeout):
+		case <-time.After(time.Second):
 			g.srv.Stop()
-			g.stateLive.Store(0)
-			g.stateReady.Store(0)
-			g.stateHealth.Store(0)
 		}
 
 		// close transport
 		ch <- nil
 
 		if config.Logger.V(logger.InfoLevel) {
-			config.Logger.Info(config.Context, fmt.Sprintf("broker [%s] Disconnected from %s", config.Broker.String(), config.Broker.Address()))
+			config.Logger.Infof(config.Context, "Broker [%s] Disconnected from %s", config.Broker.String(), config.Broker.Address())
 		}
 		// disconnect broker
 		if err = config.Broker.Disconnect(config.Context); err != nil {
 			if config.Logger.V(logger.ErrorLevel) {
-				config.Logger.Error(config.Context, fmt.Sprintf("broker [%s] disconnect error", config.Broker.String()), err)
+				config.Logger.Errorf(config.Context, "Broker [%s] disconnect error: %v", config.Broker.String(), err)
 			}
 		}
 	}()
@@ -950,7 +985,7 @@ func (g *Server) Start() error {
 	return nil
 }
 
-func (g *Server) Stop() error {
+func (g *grpcServer) Stop() error {
 	g.RLock()
 	if !g.started {
 		g.RUnlock()
@@ -970,30 +1005,14 @@ func (g *Server) Stop() error {
 	return err
 }
 
-func (g *Server) String() string {
+func (g *grpcServer) String() string {
 	return "grpc"
 }
 
-func (g *Server) Name() string {
+func (g *grpcServer) Name() string {
 	return g.opts.Name
 }
 
-func (g *Server) GRPCServer() *grpc.Server {
+func NewServer(opts ...server.Option) server.Server {
-	return g.srv
+	return newGRPCServer(opts...)
-}
-
-func (g *Server) Live() bool {
-	return g.stateLive.Load() == 1
-}
-
-func (g *Server) Ready() bool {
-	return g.stateReady.Load() == 1
-}
-
-func (g *Server) Health() bool {
-	return g.stateHealth.Load() == 1
-}
-
-func NewServer(opts ...server.Option) *Server {
-	return newServer(opts...)
 }

options.go

@@ -36,6 +36,7 @@ func Options(opts ...grpc.ServerOption) server.Option {
 	return server.SetOption(grpcOptions{}, opts)
 }
 
+//
 // MaxMsgSize set the maximum message in bytes the server can receive and
 // send. Default maximum message size is 4 MB.
 func MaxMsgSize(s int) server.Option {
@@ -43,8 +44,8 @@ func MaxMsgSize(s int) server.Option {
 }
 
 // Reflection enables reflection support in grpc server
-func Reflection(r Reflector) server.Option {
+func Reflection(b bool) server.Option {
-	return server.SetOption(reflectionKey{}, r)
+	return server.SetOption(reflectionKey{}, b)
 }
 
 // UnknownServiceHandler enables support for all services

proto/test.pb.go

@@ -1,208 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v4.25.2
-// source: test.proto
-
-package testpb
-
-import (
-	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
-	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
-	reflect "reflect"
-	sync "sync"
-)
-
-const (
-	// Verify that this generated code is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(20 - protoimpl.MinVersion)
-	// Verify that runtime/protoimpl is sufficiently up-to-date.
-	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
-)
-
-type CallReq struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Data string `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"`
-}
-
-func (x *CallReq) Reset() {
-	*x = CallReq{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_test_proto_msgTypes[0]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *CallReq) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*CallReq) ProtoMessage() {}
-
-func (x *CallReq) ProtoReflect() protoreflect.Message {
-	mi := &file_test_proto_msgTypes[0]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use CallReq.ProtoReflect.Descriptor instead.
-func (*CallReq) Descriptor() ([]byte, []int) {
-	return file_test_proto_rawDescGZIP(), []int{0}
-}
-
-func (x *CallReq) GetData() string {
-	if x != nil {
-		return x.Data
-	}
-	return ""
-}
-
-type CallRsp struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Data string `protobuf:"bytes,1,opt,name=data,proto3" json:"data,omitempty"`
-}
-
-func (x *CallRsp) Reset() {
-	*x = CallRsp{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_test_proto_msgTypes[1]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *CallRsp) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*CallRsp) ProtoMessage() {}
-
-func (x *CallRsp) ProtoReflect() protoreflect.Message {
-	mi := &file_test_proto_msgTypes[1]
-	if protoimpl.UnsafeEnabled && x != nil {
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		if ms.LoadMessageInfo() == nil {
-			ms.StoreMessageInfo(mi)
-		}
-		return ms
-	}
-	return mi.MessageOf(x)
-}
-
-// Deprecated: Use CallRsp.ProtoReflect.Descriptor instead.
-func (*CallRsp) Descriptor() ([]byte, []int) {
-	return file_test_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *CallRsp) GetData() string {
-	if x != nil {
-		return x.Data
-	}
-	return ""
-}
-
-var File_test_proto protoreflect.FileDescriptor
-
-var file_test_proto_rawDesc = []byte{
-	0x0a, 0x0a, 0x74, 0x65, 0x73, 0x74, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x04, 0x74, 0x65,
-	0x73, 0x74, 0x22, 0x1d, 0x0a, 0x07, 0x43, 0x61, 0x6c, 0x6c, 0x52, 0x65, 0x71, 0x12, 0x12, 0x0a,
-	0x04, 0x64, 0x61, 0x74, 0x61, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x64, 0x61, 0x74,
-	0x61, 0x22, 0x1d, 0x0a, 0x07, 0x43, 0x61, 0x6c, 0x6c, 0x52, 0x73, 0x70, 0x12, 0x12, 0x0a, 0x04,
-	0x64, 0x61, 0x74, 0x61, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x64, 0x61, 0x74, 0x61,
-	0x32, 0x33, 0x0a, 0x0b, 0x54, 0x65, 0x73, 0x74, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x12,
-	0x24, 0x0a, 0x04, 0x43, 0x61, 0x6c, 0x6c, 0x12, 0x0d, 0x2e, 0x74, 0x65, 0x73, 0x74, 0x2e, 0x43,
-	0x61, 0x6c, 0x6c, 0x52, 0x65, 0x71, 0x1a, 0x0d, 0x2e, 0x74, 0x65, 0x73, 0x74, 0x2e, 0x43, 0x61,
-	0x6c, 0x6c, 0x52, 0x73, 0x70, 0x42, 0x0b, 0x5a, 0x09, 0x2e, 0x2f, 0x3b, 0x74, 0x65, 0x73, 0x74,
-	0x70, 0x62, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-}
-
-var (
-	file_test_proto_rawDescOnce sync.Once
-	file_test_proto_rawDescData = file_test_proto_rawDesc
-)
-
-func file_test_proto_rawDescGZIP() []byte {
-	file_test_proto_rawDescOnce.Do(func() {
-		file_test_proto_rawDescData = protoimpl.X.CompressGZIP(file_test_proto_rawDescData)
-	})
-	return file_test_proto_rawDescData
-}
-
-var file_test_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
-var file_test_proto_goTypes = []interface{}{
-	(*CallReq)(nil), // 0: test.CallReq
-	(*CallRsp)(nil), // 1: test.CallRsp
-}
-var file_test_proto_depIdxs = []int32{
-	0, // 0: test.TestService.Call:input_type -> test.CallReq
-	1, // 1: test.TestService.Call:output_type -> test.CallRsp
-	1, // [1:2] is the sub-list for method output_type
-	0, // [0:1] is the sub-list for method input_type
-	0, // [0:0] is the sub-list for extension type_name
-	0, // [0:0] is the sub-list for extension extendee
-	0, // [0:0] is the sub-list for field type_name
-}
-
-func init() { file_test_proto_init() }
-func file_test_proto_init() {
-	if File_test_proto != nil {
-		return
-	}
-	if !protoimpl.UnsafeEnabled {
-		file_test_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*CallReq); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_test_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*CallRsp); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-	}
-	type x struct{}
-	out := protoimpl.TypeBuilder{
-		File: protoimpl.DescBuilder{
-			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
-			RawDescriptor: file_test_proto_rawDesc,
-			NumEnums:      0,
-			NumMessages:   2,
-			NumExtensions: 0,
-			NumServices:   1,
-		},
-		GoTypes:           file_test_proto_goTypes,
-		DependencyIndexes: file_test_proto_depIdxs,
-		MessageInfos:      file_test_proto_msgTypes,
-	}.Build()
-	File_test_proto = out.File
-	file_test_proto_rawDesc = nil
-	file_test_proto_goTypes = nil
-	file_test_proto_depIdxs = nil
-}

proto/test.proto

@@ -1,18 +0,0 @@
-syntax = "proto3";
-
-package test;
-
-option go_package = "./;testpb";
-
-
-service TestService {
-  rpc Call(CallReq) returns (CallRsp);
-}
-
-message CallReq {
-  string data = 1;
-}
-
-message CallRsp {
-  string data = 1;
-}

proto/test_grpc.pb.go

@@ -1,109 +0,0 @@
-// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
-// versions:
-// - protoc-gen-go-grpc v1.3.0
-// - protoc             v4.25.2
-// source: test.proto
-
-package testpb
-
-import (
-	context "context"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
-)
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the grpc package it is being compiled against.
-// Requires gRPC-Go v1.32.0 or later.
-const _ = grpc.SupportPackageIsVersion7
-
-const (
-	TestService_Call_FullMethodName = "/test.TestService/Call"
-)
-
-// TestServiceClient is the client API for TestService service.
-//
-// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://pkg.go.dev/google.golang.org/grpc/?tab=doc#ClientConn.NewStream.
-type TestServiceClient interface {
-	Call(ctx context.Context, in *CallReq, opts ...grpc.CallOption) (*CallRsp, error)
-}
-
-type testServiceClient struct {
-	cc grpc.ClientConnInterface
-}
-
-func NewTestServiceClient(cc grpc.ClientConnInterface) TestServiceClient {
-	return &testServiceClient{cc}
-}
-
-func (c *testServiceClient) Call(ctx context.Context, in *CallReq, opts ...grpc.CallOption) (*CallRsp, error) {
-	out := new(CallRsp)
-	err := c.cc.Invoke(ctx, TestService_Call_FullMethodName, in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// TestServiceServer is the server API for TestService service.
-// All implementations must embed UnimplementedTestServiceServer
-// for forward compatibility
-type TestServiceServer interface {
-	Call(context.Context, *CallReq) (*CallRsp, error)
-	mustEmbedUnimplementedTestServiceServer()
-}
-
-// UnimplementedTestServiceServer must be embedded to have forward compatible implementations.
-type UnimplementedTestServiceServer struct {
-}
-
-func (UnimplementedTestServiceServer) Call(context.Context, *CallReq) (*CallRsp, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method Call not implemented")
-}
-func (UnimplementedTestServiceServer) mustEmbedUnimplementedTestServiceServer() {}
-
-// UnsafeTestServiceServer may be embedded to opt out of forward compatibility for this service.
-// Use of this interface is not recommended, as added methods to TestServiceServer will
-// result in compilation errors.
-type UnsafeTestServiceServer interface {
-	mustEmbedUnimplementedTestServiceServer()
-}
-
-func RegisterTestServiceServer(s grpc.ServiceRegistrar, srv TestServiceServer) {
-	s.RegisterService(&TestService_ServiceDesc, srv)
-}
-
-func _TestService_Call_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(CallReq)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(TestServiceServer).Call(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: TestService_Call_FullMethodName,
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(TestServiceServer).Call(ctx, req.(*CallReq))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-// TestService_ServiceDesc is the grpc.ServiceDesc for TestService service.
-// It's only intended for direct use with grpc.RegisterService,
-// and not to be introspected or modified (even as a copy)
-var TestService_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "test.TestService",
-	HandlerType: (*TestServiceServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "Call",
-			Handler:    _TestService_Call_Handler,
-		},
-	},
-	Streams:  []grpc.StreamDesc{},
-	Metadata: "test.proto",
-}

reflection.go

@@ -1,21 +1,488 @@
+// +build ignore
+
+/*
+ *
+ * Copyright 2016 gRPC authors.
+ *
+ * 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.
+ *
+ */
+
+/*
+Package reflection implements server reflection service.
+
+The service implemented is defined in:
+https://github.com/grpc/grpc/blob/master/src/proto/grpc/reflection/v1alpha/reflection.proto.
+
+To register server reflection on a gRPC server:
+	import "google.golang.org/grpc/reflection"
+
+	s := grpc.NewServer()
+	pb.RegisterYourOwnServer(s, &server{})
+
+	// Register reflection service on gRPC server.
+	reflection.Register(s)
+
+	s.Serve(lis)
+
+*/
 package grpc
 
 import (
-	"google.golang.org/grpc/reflection"
+	"bytes"
-	"google.golang.org/protobuf/reflect/protodesc"
+	"compress/gzip"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"reflect"
+	"sort"
+	"sync"
+
+	"github.com/golang/protobuf/proto"
+	dpb "github.com/golang/protobuf/protoc-gen-go/descriptor"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	rpb "google.golang.org/grpc/reflection/grpc_reflection_v1alpha"
+	"google.golang.org/grpc/status"
 )
 
-type Reflector interface {
+type serverReflectionServer struct {
-	protodesc.Resolver
+	rpb.UnimplementedServerReflectionServer
-	reflection.ServiceInfoProvider
+	s *grpc.Server
-	reflection.ExtensionResolver
+
+	initSymbols  sync.Once
+	serviceNames []string
+	symbols      map[string]*dpb.FileDescriptorProto // map of fully-qualified names to files
 }
 
-const (
+// Register registers the server reflection service on the given gRPC server.
-	// ReflectV1ServiceName is the fully-qualified name of the v1 version of the reflection service.
+func Register(s *grpc.Server) {
-	ReflectV1ServiceName = "grpc.reflection.v1.ServerReflection"
+	rpb.RegisterServerReflectionServer(s, &serverReflectionServer{
-	// ReflectServiceURLPathV1 is the full path for reflection service endpoint
+		s: s,
-	ReflectServiceURLPathV1 = "/" + ReflectV1ServiceName + "/"
+	})
-	// ReflectMethodName is the reflection service name
+}
-	ReflectMethodName = "ServerReflectionInfo"
+
-)
+// protoMessage is used for type assertion on proto messages.
+// Generated proto message implements function Descriptor(), but Descriptor()
+// is not part of interface proto.Message. This interface is needed to
+// call Descriptor().
+type protoMessage interface {
+	Descriptor() ([]byte, []int)
+}
+
+func (s *serverReflectionServer) getSymbols() (svcNames []string, symbolIndex map[string]*dpb.FileDescriptorProto) {
+	s.initSymbols.Do(func() {
+		serviceInfo := s.s.GetServiceInfo()
+
+		s.symbols = map[string]*dpb.FileDescriptorProto{}
+		s.serviceNames = make([]string, 0, len(serviceInfo))
+		processed := map[string]struct{}{}
+		for svc, info := range serviceInfo {
+			s.serviceNames = append(s.serviceNames, svc)
+			fdenc, ok := parseMetadata(info.Metadata)
+			if !ok {
+				continue
+			}
+			fd, err := decodeFileDesc(fdenc)
+			if err != nil {
+				continue
+			}
+			s.processFile(fd, processed)
+		}
+		sort.Strings(s.serviceNames)
+	})
+
+	return s.serviceNames, s.symbols
+}
+
+func (s *serverReflectionServer) processFile(fd *dpb.FileDescriptorProto, processed map[string]struct{}) {
+	filename := fd.GetName()
+	if _, ok := processed[filename]; ok {
+		return
+	}
+	processed[filename] = struct{}{}
+
+	prefix := fd.GetPackage()
+
+	for _, msg := range fd.MessageType {
+		s.processMessage(fd, prefix, msg)
+	}
+	for _, en := range fd.EnumType {
+		s.processEnum(fd, prefix, en)
+	}
+	for _, ext := range fd.Extension {
+		s.processField(fd, prefix, ext)
+	}
+	for _, svc := range fd.Service {
+		svcName := fqn(prefix, svc.GetName())
+		s.symbols[svcName] = fd
+		for _, meth := range svc.Method {
+			name := fqn(svcName, meth.GetName())
+			s.symbols[name] = fd
+		}
+	}
+
+	for _, dep := range fd.Dependency {
+		fdenc := proto.FileDescriptor(dep)
+		fdDep, err := decodeFileDesc(fdenc)
+		if err != nil {
+			continue
+		}
+		s.processFile(fdDep, processed)
+	}
+}
+
+func (s *serverReflectionServer) processMessage(fd *dpb.FileDescriptorProto, prefix string, msg *dpb.DescriptorProto) {
+	msgName := fqn(prefix, msg.GetName())
+	s.symbols[msgName] = fd
+
+	for _, nested := range msg.NestedType {
+		s.processMessage(fd, msgName, nested)
+	}
+	for _, en := range msg.EnumType {
+		s.processEnum(fd, msgName, en)
+	}
+	for _, ext := range msg.Extension {
+		s.processField(fd, msgName, ext)
+	}
+	for _, fld := range msg.Field {
+		s.processField(fd, msgName, fld)
+	}
+	for _, oneof := range msg.OneofDecl {
+		oneofName := fqn(msgName, oneof.GetName())
+		s.symbols[oneofName] = fd
+	}
+}
+
+func (s *serverReflectionServer) processEnum(fd *dpb.FileDescriptorProto, prefix string, en *dpb.EnumDescriptorProto) {
+	enName := fqn(prefix, en.GetName())
+	s.symbols[enName] = fd
+
+	for _, val := range en.Value {
+		valName := fqn(enName, val.GetName())
+		s.symbols[valName] = fd
+	}
+}
+
+func (s *serverReflectionServer) processField(fd *dpb.FileDescriptorProto, prefix string, fld *dpb.FieldDescriptorProto) {
+	fldName := fqn(prefix, fld.GetName())
+	s.symbols[fldName] = fd
+}
+
+func fqn(prefix, name string) string {
+	if prefix == "" {
+		return name
+	}
+	return prefix + "." + name
+}
+
+// fileDescForType gets the file descriptor for the given type.
+// The given type should be a proto message.
+func (s *serverReflectionServer) fileDescForType(st reflect.Type) (*dpb.FileDescriptorProto, error) {
+	m, ok := reflect.Zero(reflect.PtrTo(st)).Interface().(protoMessage)
+	if !ok {
+		return nil, fmt.Errorf("failed to create message from type: %v", st)
+	}
+	enc, _ := m.Descriptor()
+
+	return decodeFileDesc(enc)
+}
+
+// decodeFileDesc does decompression and unmarshalling on the given
+// file descriptor byte slice.
+func decodeFileDesc(enc []byte) (*dpb.FileDescriptorProto, error) {
+	raw, err := decompress(enc)
+	if err != nil {
+		return nil, fmt.Errorf("failed to decompress enc: %v", err)
+	}
+
+	fd := new(dpb.FileDescriptorProto)
+	if err := proto.Unmarshal(raw, fd); err != nil {
+		return nil, fmt.Errorf("bad descriptor: %v", err)
+	}
+	return fd, nil
+}
+
+// decompress does gzip decompression.
+func decompress(b []byte) ([]byte, error) {
+	r, err := gzip.NewReader(bytes.NewReader(b))
+	if err != nil {
+		return nil, fmt.Errorf("bad gzipped descriptor: %v", err)
+	}
+	out, err := ioutil.ReadAll(r)
+	if err != nil {
+		return nil, fmt.Errorf("bad gzipped descriptor: %v", err)
+	}
+	return out, nil
+}
+
+func typeForName(name string) (reflect.Type, error) {
+	pt := proto.MessageType(name)
+	if pt == nil {
+		return nil, fmt.Errorf("unknown type: %q", name)
+	}
+	st := pt.Elem()
+
+	return st, nil
+}
+
+func fileDescContainingExtension(st reflect.Type, ext int32) (*dpb.FileDescriptorProto, error) {
+	m, ok := reflect.Zero(reflect.PtrTo(st)).Interface().(proto.Message)
+	if !ok {
+		return nil, fmt.Errorf("failed to create message from type: %v", st)
+	}
+
+	var extDesc *proto.ExtensionDesc
+	for id, desc := range proto.RegisteredExtensions(m) {
+		if id == ext {
+			extDesc = desc
+			break
+		}
+	}
+
+	if extDesc == nil {
+		return nil, fmt.Errorf("failed to find registered extension for extension number %v", ext)
+	}
+
+	return decodeFileDesc(proto.FileDescriptor(extDesc.Filename))
+}
+
+func (s *serverReflectionServer) allExtensionNumbersForType(st reflect.Type) ([]int32, error) {
+	m, ok := reflect.Zero(reflect.PtrTo(st)).Interface().(proto.Message)
+	if !ok {
+		return nil, fmt.Errorf("failed to create message from type: %v", st)
+	}
+
+	exts := proto.RegisteredExtensions(m)
+	out := make([]int32, 0, len(exts))
+	for id := range exts {
+		out = append(out, id)
+	}
+	return out, nil
+}
+
+// fileDescWithDependencies returns a slice of serialized fileDescriptors in
+// wire format ([]byte). The fileDescriptors will include fd and all the
+// transitive dependencies of fd with names not in sentFileDescriptors.
+func fileDescWithDependencies(fd *dpb.FileDescriptorProto, sentFileDescriptors map[string]bool) ([][]byte, error) {
+	r := [][]byte{}
+	queue := []*dpb.FileDescriptorProto{fd}
+	for len(queue) > 0 {
+		currentfd := queue[0]
+		queue = queue[1:]
+		if sent := sentFileDescriptors[currentfd.GetName()]; len(r) == 0 || !sent {
+			sentFileDescriptors[currentfd.GetName()] = true
+			currentfdEncoded, err := proto.Marshal(currentfd)
+			if err != nil {
+				return nil, err
+			}
+			r = append(r, currentfdEncoded)
+		}
+		for _, dep := range currentfd.Dependency {
+			fdenc := proto.FileDescriptor(dep)
+			fdDep, err := decodeFileDesc(fdenc)
+			if err != nil {
+				continue
+			}
+			queue = append(queue, fdDep)
+		}
+	}
+	return r, nil
+}
+
+// fileDescEncodingByFilename finds the file descriptor for given filename,
+// finds all of its previously unsent transitive dependencies, does marshalling
+// on them, and returns the marshalled result.
+func (s *serverReflectionServer) fileDescEncodingByFilename(name string, sentFileDescriptors map[string]bool) ([][]byte, error) {
+	enc := proto.FileDescriptor(name)
+	if enc == nil {
+		return nil, fmt.Errorf("unknown file: %v", name)
+	}
+	fd, err := decodeFileDesc(enc)
+	if err != nil {
+		return nil, err
+	}
+	return fileDescWithDependencies(fd, sentFileDescriptors)
+}
+
+// parseMetadata finds the file descriptor bytes specified meta.
+// For SupportPackageIsVersion4, m is the name of the proto file, we
+// call proto.FileDescriptor to get the byte slice.
+// For SupportPackageIsVersion3, m is a byte slice itself.
+func parseMetadata(meta interface{}) ([]byte, bool) {
+	// Check if meta is the file name.
+	if fileNameForMeta, ok := meta.(string); ok {
+		return proto.FileDescriptor(fileNameForMeta), true
+	}
+
+	// Check if meta is the byte slice.
+	if enc, ok := meta.([]byte); ok {
+		return enc, true
+	}
+
+	return nil, false
+}
+
+// fileDescEncodingContainingSymbol finds the file descriptor containing the
+// given symbol, finds all of its previously unsent transitive dependencies,
+// does marshalling on them, and returns the marshalled result. The given symbol
+// can be a type, a service or a method.
+func (s *serverReflectionServer) fileDescEncodingContainingSymbol(name string, sentFileDescriptors map[string]bool) ([][]byte, error) {
+	_, symbols := s.getSymbols()
+	fd := symbols[name]
+	if fd == nil {
+		// Check if it's a type name that was not present in the
+		// transitive dependencies of the registered services.
+		if st, err := typeForName(name); err == nil {
+			fd, err = s.fileDescForType(st)
+			if err != nil {
+				return nil, err
+			}
+		}
+	}
+
+	if fd == nil {
+		return nil, fmt.Errorf("unknown symbol: %v", name)
+	}
+
+	return fileDescWithDependencies(fd, sentFileDescriptors)
+}
+
+// fileDescEncodingContainingExtension finds the file descriptor containing
+// given extension, finds all of its previously unsent transitive dependencies,
+// does marshalling on them, and returns the marshalled result.
+func (s *serverReflectionServer) fileDescEncodingContainingExtension(typeName string, extNum int32, sentFileDescriptors map[string]bool) ([][]byte, error) {
+	st, err := typeForName(typeName)
+	if err != nil {
+		return nil, err
+	}
+	fd, err := fileDescContainingExtension(st, extNum)
+	if err != nil {
+		return nil, err
+	}
+	return fileDescWithDependencies(fd, sentFileDescriptors)
+}
+
+// allExtensionNumbersForTypeName returns all extension numbers for the given type.
+func (s *serverReflectionServer) allExtensionNumbersForTypeName(name string) ([]int32, error) {
+	st, err := typeForName(name)
+	if err != nil {
+		return nil, err
+	}
+	extNums, err := s.allExtensionNumbersForType(st)
+	if err != nil {
+		return nil, err
+	}
+	return extNums, nil
+}
+
+// ServerReflectionInfo is the reflection service handler.
+func (s *serverReflectionServer) ServerReflectionInfo(stream rpb.ServerReflection_ServerReflectionInfoServer) error {
+	sentFileDescriptors := make(map[string]bool)
+	for {
+		in, err := stream.Recv()
+		if err == io.EOF {
+			return nil
+		}
+		if err != nil {
+			return err
+		}
+
+		out := &rpb.ServerReflectionResponse{
+			ValidHost:       in.Host,
+			OriginalRequest: in,
+		}
+		switch req := in.MessageRequest.(type) {
+		case *rpb.ServerReflectionRequest_FileByFilename:
+			b, err := s.fileDescEncodingByFilename(req.FileByFilename, sentFileDescriptors)
+			if err != nil {
+				out.MessageResponse = &rpb.ServerReflectionResponse_ErrorResponse{
+					ErrorResponse: &rpb.ErrorResponse{
+						ErrorCode:    int32(codes.NotFound),
+						ErrorMessage: err.Error(),
+					},
+				}
+			} else {
+				out.MessageResponse = &rpb.ServerReflectionResponse_FileDescriptorResponse{
+					FileDescriptorResponse: &rpb.FileDescriptorResponse{FileDescriptorProto: b},
+				}
+			}
+		case *rpb.ServerReflectionRequest_FileContainingSymbol:
+			b, err := s.fileDescEncodingContainingSymbol(req.FileContainingSymbol, sentFileDescriptors)
+			if err != nil {
+				out.MessageResponse = &rpb.ServerReflectionResponse_ErrorResponse{
+					ErrorResponse: &rpb.ErrorResponse{
+						ErrorCode:    int32(codes.NotFound),
+						ErrorMessage: err.Error(),
+					},
+				}
+			} else {
+				out.MessageResponse = &rpb.ServerReflectionResponse_FileDescriptorResponse{
+					FileDescriptorResponse: &rpb.FileDescriptorResponse{FileDescriptorProto: b},
+				}
+			}
+		case *rpb.ServerReflectionRequest_FileContainingExtension:
+			typeName := req.FileContainingExtension.ContainingType
+			extNum := req.FileContainingExtension.ExtensionNumber
+			b, err := s.fileDescEncodingContainingExtension(typeName, extNum, sentFileDescriptors)
+			if err != nil {
+				out.MessageResponse = &rpb.ServerReflectionResponse_ErrorResponse{
+					ErrorResponse: &rpb.ErrorResponse{
+						ErrorCode:    int32(codes.NotFound),
+						ErrorMessage: err.Error(),
+					},
+				}
+			} else {
+				out.MessageResponse = &rpb.ServerReflectionResponse_FileDescriptorResponse{
+					FileDescriptorResponse: &rpb.FileDescriptorResponse{FileDescriptorProto: b},
+				}
+			}
+		case *rpb.ServerReflectionRequest_AllExtensionNumbersOfType:
+			extNums, err := s.allExtensionNumbersForTypeName(req.AllExtensionNumbersOfType)
+			if err != nil {
+				out.MessageResponse = &rpb.ServerReflectionResponse_ErrorResponse{
+					ErrorResponse: &rpb.ErrorResponse{
+						ErrorCode:    int32(codes.NotFound),
+						ErrorMessage: err.Error(),
+					},
+				}
+			} else {
+				out.MessageResponse = &rpb.ServerReflectionResponse_AllExtensionNumbersResponse{
+					AllExtensionNumbersResponse: &rpb.ExtensionNumberResponse{
+						BaseTypeName:    req.AllExtensionNumbersOfType,
+						ExtensionNumber: extNums,
+					},
+				}
+			}
+		case *rpb.ServerReflectionRequest_ListServices:
+			svcNames, _ := s.getSymbols()
+			serviceResponses := make([]*rpb.ServiceResponse, len(svcNames))
+			for i, n := range svcNames {
+				serviceResponses[i] = &rpb.ServiceResponse{
+					Name: n,
+				}
+			}
+			out.MessageResponse = &rpb.ServerReflectionResponse_ListServicesResponse{
+				ListServicesResponse: &rpb.ListServiceResponse{
+					Service: serviceResponses,
+				},
+			}
+		default:
+			return status.Errorf(codes.InvalidArgument, "invalid MessageRequest: %v", in.MessageRequest)
+		}
+
+		if err := stream.Send(out); err != nil {
+			return err
+		}
+	}
+}

reflection_test.go

@@ -1,63 +0,0 @@
-package grpc
-
-import (
-	"fmt"
-	"testing"
-
-	_ "go.unistack.org/micro-server-grpc/v3/proto"
-	"go.unistack.org/micro/v3/server"
-	"google.golang.org/grpc"
-	"google.golang.org/protobuf/reflect/protoreflect"
-	"google.golang.org/protobuf/reflect/protoregistry"
-)
-
-type reflector struct{}
-
-func (r *reflector) FindFileByPath(path string) (protoreflect.FileDescriptor, error) {
-	fd, err := protoregistry.GlobalFiles.FindFileByPath(path)
-	if err != nil {
-		fmt.Printf("err: %v\n", err)
-		return nil, err
-	}
-	return fd, nil
-}
-
-func (r *reflector) FindDescriptorByName(name protoreflect.FullName) (protoreflect.Descriptor, error) {
-	fd, err := protoregistry.GlobalFiles.FindDescriptorByName(name)
-	if err != nil {
-		return nil, err
-	}
-	return fd, nil
-}
-
-func (r *reflector) GetServiceInfo() map[string]grpc.ServiceInfo {
-	fmt.Printf("GetServiceInfo\n")
-	return nil
-}
-
-func (r *reflector) FindExtensionByName(field protoreflect.FullName) (protoreflect.ExtensionType, error) {
-	fmt.Printf("FindExtensionByName field %#+v\n", field)
-	return nil, nil
-}
-
-func (r *reflector) FindExtensionByNumber(message protoreflect.FullName, field protoreflect.FieldNumber) (protoreflect.ExtensionType, error) {
-	fmt.Printf("FindExtensionByNumber message %#+v field %#+v\n", message, field)
-	return nil, nil
-}
-
-func (r *reflector) RangeExtensionsByMessage(message protoreflect.FullName, f func(protoreflect.ExtensionType) bool) {
-	fmt.Printf("RangeExtensionsByMessage\n")
-}
-
-func TestReflector(t *testing.T) {
-	t.Skip()
-	srv := NewServer(Reflection(&reflector{}), server.Address(":12345"))
-	if err := srv.Init(); err != nil {
-		t.Fatal(err)
-	}
-	if err := srv.Start(); err != nil {
-		t.Fatal(err)
-	}
-	t.Logf("addr %s", srv.Options().Address)
-	select {}
-}

request.go

@@ -1,14 +1,20 @@
 package grpc
 
 import (
+	"io"
+
 	"go.unistack.org/micro/v3/codec"
 	"go.unistack.org/micro/v3/metadata"
 	"go.unistack.org/micro/v3/server"
 )
 
-var _ server.Request = &rpcRequest{}
+var (
+	_ server.Request = &rpcRequest{}
+	_ server.Message = &rpcMessage{}
+)
 
 type rpcRequest struct {
+	rw          io.ReadWriter
 	payload     interface{}
 	codec       codec.Codec
 	header      metadata.Metadata
@@ -19,6 +25,14 @@ type rpcRequest struct {
 	stream      bool
 }
 
+type rpcMessage struct {
+	payload     interface{}
+	codec       codec.Codec
+	header      metadata.Metadata
+	topic       string
+	contentType string
+}
+
 func (r *rpcRequest) ContentType() string {
 	return r.contentType
 }
@@ -44,7 +58,11 @@ func (r *rpcRequest) Header() metadata.Metadata {
 }
 
 func (r *rpcRequest) Read() ([]byte, error) {
-	return nil, nil
+	f := &codec.Frame{}
+	if err := r.codec.ReadBody(r.rw, f); err != nil {
+		return nil, err
+	}
+	return f.Data, nil
 }
 
 func (r *rpcRequest) Stream() bool {
@@ -54,3 +72,23 @@ func (r *rpcRequest) Stream() bool {
 func (r *rpcRequest) Body() interface{} {
 	return r.payload
 }
+
+func (r *rpcMessage) ContentType() string {
+	return r.contentType
+}
+
+func (r *rpcMessage) Topic() string {
+	return r.topic
+}
+
+func (r *rpcMessage) Body() interface{} {
+	return r.payload
+}
+
+func (r *rpcMessage) Header() metadata.Metadata {
+	return r.header
+}
+
+func (r *rpcMessage) Codec() codec.Codec {
+	return r.codec
+}

response.go

@@ -1,6 +1,8 @@
 package grpc
 
 import (
+	"io"
+
 	"go.unistack.org/micro/v3/codec"
 	"go.unistack.org/micro/v3/metadata"
 	"go.unistack.org/micro/v3/server"
@@ -9,6 +11,7 @@ import (
 var _ server.Response = &rpcResponse{}
 
 type rpcResponse struct {
+	rw     io.ReadWriter
 	header metadata.Metadata
 	codec  codec.Codec
 }
@@ -24,5 +27,8 @@ func (r *rpcResponse) WriteHeader(hdr metadata.Metadata) {
 }
 
 func (r *rpcResponse) Write(b []byte) error {
-	return nil
+	return r.codec.Write(r.rw, &codec.Message{
+		Header: r.header,
+		Body:   b,
+	}, nil)
 }

server.go

@@ -140,7 +140,7 @@ func (server *rServer) register(rcvr interface{}) error {
 		return fmt.Errorf("rpc Register: type %s is not exported", sname)
 	}
 	if _, present := server.serviceMap[sname]; present {
-		return fmt.Errorf("rpc: service already defined: %s", sname)
+		return fmt.Errorf("rpc: service already defined: " + sname)
 	}
 	s.name = sname
 	s.method = make(map[string]*methodType)

subscriber.go

@@ -4,47 +4,17 @@ import (
 	"context"
 	"fmt"
 	"reflect"
+	"runtime/debug"
 	"strings"
 
 	"go.unistack.org/micro/v3/broker"
-	"go.unistack.org/micro/v3/codec"
+	"go.unistack.org/micro/v3/errors"
 	"go.unistack.org/micro/v3/logger"
 	"go.unistack.org/micro/v3/metadata"
-	"go.unistack.org/micro/v3/options"
 	"go.unistack.org/micro/v3/register"
 	"go.unistack.org/micro/v3/server"
 )
 
-var _ server.Message = &rpcMessage{}
-
-type rpcMessage struct {
-	payload     interface{}
-	codec       codec.Codec
-	header      metadata.Metadata
-	topic       string
-	contentType string
-}
-
-func (r *rpcMessage) ContentType() string {
-	return r.contentType
-}
-
-func (r *rpcMessage) Topic() string {
-	return r.topic
-}
-
-func (r *rpcMessage) Body() interface{} {
-	return r.payload
-}
-
-func (r *rpcMessage) Header() metadata.Metadata {
-	return r.header
-}
-
-func (r *rpcMessage) Codec() codec.Codec {
-	return r.codec
-}
-
 type handler struct {
 	reqType reflect.Type
 	ctxType reflect.Type
@@ -132,8 +102,18 @@ func newSubscriber(topic string, sub interface{}, opts ...server.SubscriberOptio
 	}
 }
 
-func (g *Server) createSubHandler(sb *subscriber, opts server.Options) broker.Handler {
+func (g *grpcServer) createSubHandler(sb *subscriber, opts server.Options) broker.Handler {
 	return func(p broker.Event) (err error) {
+		defer func() {
+			if r := recover(); r != nil {
+				if g.opts.Logger.V(logger.ErrorLevel) {
+					g.opts.Logger.Error(g.opts.Context, "panic recovered: ", r)
+					g.opts.Logger.Error(g.opts.Context, string(debug.Stack()))
+				}
+				err = errors.InternalServerError(g.opts.Name+".subscriber", "panic recovered: %v", r)
+			}
+		}()
+
 		msg := p.Message()
 		// if we don't have headers, create empty map
 		if msg.Header == nil {
@@ -152,6 +132,9 @@ func (g *Server) createSubHandler(sb *subscriber, opts server.Options) broker.Ha
 
 		hdr := make(map[string]string, len(msg.Header))
 		for k, v := range msg.Header {
+			if k == "Content-Type" {
+				continue
+			}
 			hdr[k] = v
 		}
 
@@ -197,11 +180,9 @@ func (g *Server) createSubHandler(sb *subscriber, opts server.Options) broker.Ha
 				return nil
 			}
 
-			opts.Hooks.EachNext(func(hook options.Hook) {
+			for i := len(opts.SubWrappers); i > 0; i-- {
-				if h, ok := hook.(server.HookSubHandler); ok {
+				fn = opts.SubWrappers[i-1](fn)
-					fn = h(fn)
+			}
-				}
-			})
 
 			if g.wg != nil {
 				g.wg.Add(1)
@@ -248,38 +229,3 @@ func (s *subscriber) Endpoints() []*register.Endpoint {
 func (s *subscriber) Options() server.SubscriberOptions {
 	return s.opts
 }
-
-func (g *Server) subscribe() error {
-	config := g.opts
-	subCtx := config.Context
-
-	for sb := range g.subscribers {
-
-		if cx := sb.Options().Context; cx != nil {
-			subCtx = cx
-		}
-
-		opts := []broker.SubscribeOption{
-			broker.SubscribeContext(subCtx),
-			broker.SubscribeAutoAck(sb.Options().AutoAck),
-			broker.SubscribeBodyOnly(sb.Options().BodyOnly),
-		}
-
-		if queue := sb.Options().Queue; len(queue) > 0 {
-			opts = append(opts, broker.SubscribeGroup(queue))
-		}
-
-		if config.Logger.V(logger.InfoLevel) {
-			config.Logger.Info(config.Context, "subscribing to topic: "+sb.Topic())
-		}
-
-		sub, err := config.Broker.Subscribe(subCtx, sb.Topic(), g.createSubHandler(sb, config), opts...)
-		if err != nil {
-			return err
-		}
-
-		g.subscribers[sb] = []broker.Subscriber{sub}
-	}
-
-	return nil
-}

util_test.go

@@ -26,7 +26,6 @@ func TestServiceMethod(t *testing.T) {
 		if err != nil && test.err == true {
 			continue
 		}
-		t.Logf("input %s service %s method %s", test.input, service, method)
 		// unexpected error
 		if err != nil && test.err == false {
 			t.Fatalf("unexpected err %v for %+v", err, test)