fixes

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

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,6 +1,6 @@
 ---
 name: Bug report
-about: For reporting bugs in go-micro
+about: For reporting bugs in micro
 title: "[BUG]"
 labels: ''
 assignees: ''
@@ -16,9 +16,3 @@ assignees: ''
 **How to reproduce the bug:**
 
 If possible, please include a minimal code snippet here.
-
-**Environment:**
-Go Version: please paste `go version` output here
-```
-please paste `go env` output here
-```

.github/ISSUE_TEMPLATE/feature-request---enhancement.md

@@ -1,6 +1,6 @@
 ---
 name: Feature request / Enhancement
-about: If you have a need not served by go-micro
+about: If you have a need not served by micro
 title: "[FEATURE]"
 labels: ''
 assignees: ''
@@ -14,4 +14,4 @@ A clear and concise description of what the problem is. Ex. I'm always frustrate
 A clear and concise description of what you want to happen.
 
 **Additional context**
-Add any other context or screenshots about the feature request here.
+Add any other context or screenshots about the feature request here.

.github/ISSUE_TEMPLATE/question.md

@@ -1,14 +1,8 @@
 ---
 name: Question
-about: Ask a question about go-micro
+about: Ask a question about micro
 title: ''
 labels: ''
 assignees: ''
 
----
-
-Before asking, please check if your question has already been answered: 
-
-1. Check the documentation - https://micro.mu/docs/
-2. Check the examples and plugins - https://github.com/micro/examples & https://github.com/micro/go-plugins
-3. Search existing issues
+---

.github/autoapprove.yml

@@ -0,0 +1,28 @@
+name: "autoapprove"
+
+on:
+  pull_request_target:
+    types: [assigned, opened, synchronize, reopened]
+  workflow_run:
+    workflows: ["prbuild"]
+    types:
+      - completed
+
+permissions:
+  pull-requests: write
+  contents: write
+
+jobs:
+  autoapprove:
+    runs-on: ubuntu-latest
+    steps:
+      - name: approve
+        run: [ "curl -o tea https://dl.gitea.com/tea/main/tea-main-linux-amd64",
+               "chmod +x ./tea",
+               "./tea login add --name unistack --token ${{ secrets.GITHUB_TOKEN }} --url https://git.unistack.org",
+               "./tea pr --repo ${{ github.event.repository.name }}"
+        ]
+        if: github.actor == 'vtolstov'
+        id: approve
+        with:
+          github-token: ${{ secrets.GITHUB_TOKEN }}

.github/dependabot.yml

@@ -1,19 +0,0 @@
-# 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/build.yml

@@ -1,46 +0,0 @@
-name: build
-on:
- push:
-    branches:
-    - master
-jobs:
-  test:
-    name: test
-    runs-on: ubuntu-latest
-    steps:
-    - name: setup
-      uses: actions/setup-go@v2
-      with:
-        go-version: 1.16
-    - name: 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@v2
-        continue-on-error: true
-        with:
-          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
-          version: v1.30
-          # Optional: working directory, useful for monorepos
-          # working-directory: somedir
-          # Optional: golangci-lint command line arguments.
-          # args: --issues-exit-code=0
-          # Optional: show only new issues if it's a pull request. The default value is `false`.
-          # only-new-issues: true

.github/workflows/codeql-analysis.yml

@@ -1,75 +0,0 @@
-# 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 ]
-  pull_request:
-    # The branches below must be a subset of the branches above
-    branches: [ master ]
-  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 repository
-      uses: actions/checkout@v2
-
-    # Initializes the CodeQL tools for scanning.
-    - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
-      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@v1
-
-    # 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: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1

.github/workflows/dependabot-automerge.yml

@@ -1,66 +0,0 @@
-name: "prautomerge"
-
-on:
-  workflow_run:
-    workflows: ["prbuild"]
-    types:
-      - completed
-
-permissions:
-  contents: write
-  pull-requests: write
-
-jobs:
-  Dependabot-Automerge:
-    runs-on: ubuntu-latest
-    # Contains workaround to execute if dependabot updates the PR by checking for the base branch in the linked PR
-    # The the github.event.workflow_run.event value is 'push' and not 'pull_request'
-    # dont work with multiple workflows when last returns success
-    if: >-
-      github.event.workflow_run.conclusion == 'success'
-      && github.actor == 'dependabot[bot]'
-      && github.event.sender.login == 'dependabot[bot]'
-      && github.event.sender.type == 'Bot'
-      && (github.event.workflow_run.event == 'pull_request'
-          || (github.event.workflow_run.event == 'push' && github.event.workflow_run.pull_requests[0].base.ref == github.event.repository.default_branch ))
-    steps:
-      - name: Approve Changes and Merge changes if label 'dependencies' is set
-        uses: actions/github-script@v4
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
-          script: |
-            console.log(context.payload.workflow_run);
-            
-            var labelNames = await github.paginate(
-              github.issues.listLabelsOnIssue,
-              {
-                repo: context.repo.repo,
-                owner: context.repo.owner,
-                issue_number: context.payload.workflow_run.pull_requests[0].number,
-              },
-              (response) => response.data.map(
-                (label) => label.name
-              )
-            );
-
-            console.log(labelNames);
-
-            if (labelNames.includes('dependencies')) {
-              console.log('Found label');
-
-              await github.pulls.createReview({
-                repo: context.repo.repo,
-                owner: context.repo.owner,
-                pull_number: context.payload.workflow_run.pull_requests[0].number,
-                event: 'APPROVE'
-              });
-              console.log('Approved PR');
-
-              await github.pulls.merge({
-                repo: context.repo.repo,
-                owner: context.repo.owner,
-                pull_number: context.payload.workflow_run.pull_requests[0].number,
-              });
-
-              console.log('Merged PR');
-            }

.github/workflows/job_coverage.yml

@@ -0,0 +1,53 @@
+name: coverage
+
+on:
+  push:
+    branches: [ main, v3, v4 ]
+    paths-ignore:
+      - '.github/**'
+      - '.gitea/**'
+  pull_request:
+    branches: [ main, v3, v4 ]
+
+jobs:
+
+  build:
+    if: github.server_url != 'https://github.com'
+    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: test coverage
+      run: |
+        go test -v -cover ./... -covermode=count -coverprofile coverage.out -coverpkg ./...
+        go tool cover -func coverage.out -o coverage.out
+
+    - name: coverage badge
+      uses: tj-actions/coverage-badge-go@v2
+      with:
+        green: 80
+        filename: coverage.out
+
+    - uses: stefanzweifel/git-auto-commit-action@v4
+      name: autocommit
+      with:
+        commit_message: Apply Code Coverage Badge
+        skip_fetch: false
+        skip_checkout: false
+        file_pattern: ./README.md
+
+    - name: push
+      if: steps.auto-commit-action.outputs.changes_detected == 'true'
+      uses: ad-m/github-push-action@master
+      with:
+        github_token: ${{ github.token }}
+        branch: ${{ github.ref }}

.github/workflows/job_lint.yml

@@ -0,0 +1,29 @@
+name: lint
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+    branches: [ master, v3, v4 ]
+    paths-ignore:
+      - '.github/**'
+      - '.gitea/**'
+
+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: golangci/golangci-lint-action@v6
+      with:
+        version: 'latest'

.github/workflows/job_sync.yml

@@ -0,0 +1,94 @@
+name: sync
+
+on:
+  schedule:
+    - cron: '*/5 * * * *'
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  sync:
+    if: github.server_url != 'https://github.com'
+    runs-on: ubuntu-latest
+    steps:
+    - name: init
+      run: |
+        git config --global user.email "vtolstov <vtolstov@users.noreply.github.com>"
+        git config --global user.name "github-actions[bot]"
+        echo "machine git.unistack.org login vtolstov password ${{ secrets.TOKEN_GITEA }}" >> /root/.netrc
+        echo "machine github.com login vtolstov password ${{ secrets.TOKEN_GITHUB }}" >> /root/.netrc
+
+    - name: check master
+      id: check_master
+      run: |
+        src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/master | cut -f1)
+        dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/master | cut -f1)
+        echo "src_hash=$src_hash"
+        echo "dst_hash=$dst_hash"
+        if [ "$src_hash" != "$dst_hash" -a "$src_hash" != "" -a "$dst_hash" != "" ]; then
+          echo "sync_needed=true" >> $GITHUB_OUTPUT
+        else
+          echo "sync_needed=false" >> $GITHUB_OUTPUT
+        fi
+
+    - name: sync master
+      if: steps.check_master.outputs.sync_needed == 'true'
+      run: |
+        git clone --filter=blob:none --filter=tree:0 --branch master --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+        cd repo
+        git remote add --no-tags --fetch --track master upstream https://github.com/${GITHUB_REPOSITORY}
+        git pull --rebase upstream master
+        git push upstream master --progress
+        git push origin master --progress
+        cd ../
+        rm -rf repo
+
+    - name: check v3
+      id: check_v3
+      run: |
+        src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/v3 | cut -f1)
+        dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/v3 | cut -f1)
+        echo "src_hash=$src_hash"
+        echo "dst_hash=$dst_hash"
+        if [ "$src_hash" != "$dst_hash" ]; then
+          echo "sync_needed=true" >> $GITHUB_OUTPUT
+        else
+          echo "sync_needed=false" >> $GITHUB_OUTPUT
+        fi
+
+    - name: sync v3
+      if: steps.check_v3.outputs.sync_needed == 'true'
+      run: |
+        git clone --filter=blob:none --filter=tree:0 --branch v3 --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+        cd repo
+        git remote add --no-tags --fetch --track v3 upstream https://github.com/${GITHUB_REPOSITORY}
+        git pull --rebase upstream v3
+        git push upstream v3 --progress
+        git push origin v3 --progress
+        cd ../
+        rm -rf repo
+
+    - name: check v4
+      id: check_v4
+      run: |
+        src_hash=$(git ls-remote https://github.com/${GITHUB_REPOSITORY} refs/heads/v4 | cut -f1)
+        dst_hash=$(git ls-remote ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} refs/heads/v4 | cut -f1)
+        echo "src_hash=$src_hash"
+        echo "dst_hash=$dst_hash"
+        if [ "$src_hash" != "$dst_hash" ]; then
+          echo "sync_needed=true" >> $GITHUB_OUTPUT
+        else
+          echo "sync_needed=false" >> $GITHUB_OUTPUT
+        fi
+
+    - name: sync v4
+      if: steps.check_v4.outputs.sync_needed == 'true'
+      run: |
+        git clone --filter=blob:none --filter=tree:0 --branch v4 --single-branch ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY} repo
+        cd repo
+        git remote add --no-tags --fetch --track v4 upstream https://github.com/${GITHUB_REPOSITORY}
+        git pull --rebase upstream v4
+        git push upstream v4 --progress
+        git push origin v4 --progress
+        cd ../
+        rm -rf repo

.github/workflows/job_test.yml

@@ -0,0 +1,31 @@
+name: test
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+    branches: [ master, v3, v4 ]
+  push:
+    branches: [ master, v3, v4 ]
+    paths-ignore:
+      - '.github/**'
+      - '.gitea/**'
+
+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 ./...

.github/workflows/job_tests.yml

@@ -0,0 +1,50 @@
+name: test
+
+on:
+  pull_request:
+    types: [opened, reopened, synchronize]
+    branches: [ master, v3, v4 ]
+  push:
+    branches: [ master, v3, v4 ]
+    paths-ignore:
+      - '.github/**'
+      - '.gitea/**'
+
+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: ${{ github.workspace }}/go.work
+      run: |
+        go work init
+        go work use .
+        go work use micro-tests
+    - name: setup deps
+      env:
+        GOWORK: ${{ github.workspace }}/go.work
+      run: go get -v ./...
+    - name: run tests
+      env:
+        INTEGRATION_TESTS: yes
+        GOWORK: ${{ github.workspace }}/go.work
+      run: |
+        cd micro-tests
+        go test -mod readonly -v ./... || true

.github/workflows/pr.yml

@@ -1,46 +0,0 @@
-name: prbuild
-on:
-  pull_request:
-    branches:
-    - master
-jobs:
-  test:
-    name: test
-    runs-on: ubuntu-latest
-    steps:
-    - name: setup
-      uses: actions/setup-go@v2
-      with:
-        go-version: 1.16
-    - 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@v2
-        continue-on-error: true
-        with:
-          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
-          version: v1.30
-          # Optional: working directory, useful for monorepos
-          # working-directory: somedir
-          # Optional: golangci-lint command line arguments.
-          # args: --issues-exit-code=0
-          # Optional: show only new issues if it's a pull request. The default value is `false`.
-          # only-new-issues: true

.gitignore

@@ -13,3 +13,9 @@
 
 # Dependency directories (remove the comment below to include it)
 # vendor/
+
+# Develop tools
+/.vscode/
+/.idea/
+.idea
+.vscode

.golangci.yml

@@ -0,0 +1,5 @@
+run:
+  concurrency: 8
+  timeout: 5m
+  issues-exit-code: 1
+  tests: true

generate.go

@@ -1,3 +1,9 @@
 package service
 
-//go:generate protoc -I./proto -I. --go-grpc_out=paths=source_relative:./proto --go_out=paths=source_relative:./proto --go-micro_out=components=micro|rpc,standalone=true,debug=true,paths=source_relative:./micro proto/service.proto
+//go:generate sh -c "protoc -I./proto -I. -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v4) --go_out=paths=source_relative:./proto proto/service.proto"
+
+//go:generate sh -c "protoc -I./proto -I. -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v4) --go-micro_out=components=micro,debug=true,paths=source_relative:./proto proto/service.proto"
+
+//go:generate sh -c "protoc -I./proto -I. -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v4) --go-micro_out=components=grpc,standalone=true,debug=true,paths=source_relative:./grpc proto/service.proto"
+
+//go:generate sh -c "protoc -I./proto -I. -I$(go list -f '{{ .Dir }}' -m go.unistack.org/micro-proto/v4) --go-micro_out=components=http,standalone=true,debug=true,paths=source_relative:./http proto/service.proto"

go.mod

@@ -1,12 +1,22 @@
-module go.unistack.org/micro-config-service/v3
+module go.unistack.org/micro-config-service/v4
 
-go 1.16
+go 1.25
 
 require (
-	github.com/imdario/mergo v0.3.12
-	go.unistack.org/micro/v3 v3.8.5
-	golang.org/x/sys v0.0.0-20210616094352-59db8d763f22 // indirect
-	google.golang.org/genproto v0.0.0-20210617175327-b9e0b3197ced // indirect
-	google.golang.org/grpc v1.41.0
-	google.golang.org/protobuf v1.27.1
+	dario.cat/mergo v1.0.2
+	go.unistack.org/micro/v4 v4.1.26
+	google.golang.org/grpc v1.76.0
+	google.golang.org/protobuf v1.36.10
+)
+
+require (
+	github.com/goccy/go-yaml v1.18.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/matoous/go-nanoid v1.5.1 // indirect
+	github.com/spf13/cast v1.10.0 // indirect
+	go.unistack.org/micro-proto/v4 v4.1.0 // indirect
+	golang.org/x/net v0.48.0 // indirect
+	golang.org/x/sys v0.39.0 // indirect
+	golang.org/x/text v0.32.0 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251029180050-ab9386a59fda // indirect
 )

go.sum

@@ -1,158 +1,64 @@
-cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
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grpc/service_micro_grpc.pb.go

@@ -1,15 +1,14 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
-// protoc-gen-go-micro version: v3.5.3
+// protoc-gen-go-micro version: v3.10.4
 // source: service.proto
 
 package servicepb
 
 import (
 	context "context"
-	proto "go.unistack.org/micro-config-service/v3/proto"
-	api "go.unistack.org/micro/v3/api"
-	client "go.unistack.org/micro/v3/client"
-	server "go.unistack.org/micro/v3/server"
+	proto "go.unistack.org/micro-config-service/v4/proto"
+	client "go.unistack.org/micro/v4/client"
+	server "go.unistack.org/micro/v4/server"
 )
 
 type configClient struct {
@@ -17,7 +16,7 @@ type configClient struct {
 	name string
 }
 
-func NewConfigClient(name string, c client.Client) ConfigClient {
+func NewConfigClient(name string, c client.Client) proto.ConfigClient {
 	return &configClient{c: c, name: name}
 }
 
@@ -40,7 +39,7 @@ func (c *configClient) Save(ctx context.Context, req *proto.SaveRequest, opts ..
 }
 
 type configServer struct {
-	ConfigServer
+	proto.ConfigServer
 }
 
 func (h *configServer) Load(ctx context.Context, req *proto.LoadRequest, rsp *proto.LoadResponse) error {
@@ -51,7 +50,7 @@ func (h *configServer) Save(ctx context.Context, req *proto.SaveRequest, rsp *pr
 	return h.ConfigServer.Save(ctx, req, rsp)
 }
 
-func RegisterConfigServer(s server.Server, sh ConfigServer, opts ...server.HandlerOption) error {
+func RegisterConfigServer(s server.Server, sh proto.ConfigServer, opts ...server.HandlerOption) error {
 	type config interface {
 		Load(ctx context.Context, req *proto.LoadRequest, rsp *proto.LoadResponse) error
 		Save(ctx context.Context, req *proto.SaveRequest, rsp *proto.SaveResponse) error
@@ -60,9 +59,5 @@ func RegisterConfigServer(s server.Server, sh ConfigServer, opts ...server.Handl
 		config
 	}
 	h := &configServer{sh}
-	var nopts []server.HandlerOption
-	for _, endpoint := range ConfigEndpoints {
-		nopts = append(nopts, api.WithEndpoint(&endpoint))
-	}
-	return s.Handle(s.NewHandler(&Config{h}, append(nopts, opts...)...))
+	return s.Handle(s.NewHandler(&Config{h}, opts...))
 }

http/service_micro_http.pb.go

@@ -0,0 +1,105 @@
+// Code generated by protoc-gen-go-micro. DO NOT EDIT.
+// protoc-gen-go-micro version: v3.10.4
+// source: service.proto
+
+package servicepb
+
+import (
+	context "context"
+	v41 "go.unistack.org/micro-client-http/v4"
+	proto "go.unistack.org/micro-config-service/v4/proto"
+	v4 "go.unistack.org/micro-server-http/v4"
+	client "go.unistack.org/micro/v4/client"
+	server "go.unistack.org/micro/v4/server"
+	http "net/http"
+)
+
+var (
+	ConfigServerEndpoints = []v4.EndpointMetadata{
+		{
+			Name:   "Config.Load",
+			Path:   "/load",
+			Method: "GET",
+			Body:   "",
+			Stream: false,
+		},
+		{
+			Name:   "Config.Save",
+			Path:   "/save",
+			Method: "POST",
+			Body:   "*",
+			Stream: false,
+		},
+	}
+)
+
+type configClient struct {
+	c    client.Client
+	name string
+}
+
+func NewConfigClient(name string, c client.Client) proto.ConfigClient {
+	return &configClient{c: c, name: name}
+}
+
+func (c *configClient) Load(ctx context.Context, req *proto.LoadRequest, opts ...client.CallOption) (*proto.LoadResponse, error) {
+	errmap := make(map[string]interface{}, 1)
+	errmap["default"] = &proto.Error{}
+	opts = append(opts,
+		v41.ErrorMap(errmap),
+	)
+	opts = append(opts,
+		v41.Method(http.MethodGet),
+		v41.Path("/load"),
+	)
+	rsp := &proto.LoadResponse{}
+	err := c.c.Call(ctx, c.c.NewRequest(c.name, "Config.Load", req), rsp, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return rsp, nil
+}
+
+func (c *configClient) Save(ctx context.Context, req *proto.SaveRequest, opts ...client.CallOption) (*proto.SaveResponse, error) {
+	errmap := make(map[string]interface{}, 1)
+	errmap["default"] = &proto.Error{}
+	opts = append(opts,
+		v41.ErrorMap(errmap),
+	)
+	opts = append(opts,
+		v41.Method(http.MethodPost),
+		v41.Path("/save"),
+		v41.Body("*"),
+	)
+	rsp := &proto.SaveResponse{}
+	err := c.c.Call(ctx, c.c.NewRequest(c.name, "Config.Save", req), rsp, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return rsp, nil
+}
+
+type configServer struct {
+	proto.ConfigServer
+}
+
+func (h *configServer) Load(ctx context.Context, req *proto.LoadRequest, rsp *proto.LoadResponse) error {
+	return h.ConfigServer.Load(ctx, req, rsp)
+}
+
+func (h *configServer) Save(ctx context.Context, req *proto.SaveRequest, rsp *proto.SaveResponse) error {
+	return h.ConfigServer.Save(ctx, req, rsp)
+}
+
+func RegisterConfigServer(s server.Server, sh proto.ConfigServer, opts ...server.HandlerOption) error {
+	type config interface {
+		Load(ctx context.Context, req *proto.LoadRequest, rsp *proto.LoadResponse) error
+		Save(ctx context.Context, req *proto.SaveRequest, rsp *proto.SaveResponse) error
+	}
+	type Config struct {
+		config
+	}
+	h := &configServer{sh}
+	opts = append(opts, v4.HandlerEndpoints(ConfigServerEndpoints))
+	return s.Handle(s.NewHandler(&Config{h}, opts...))
+}

micro/service_micro.pb.go

@@ -1,32 +0,0 @@
-// Code generated by protoc-gen-go-micro. DO NOT EDIT.
-// protoc-gen-go-micro version: v3.5.3
-// source: service.proto
-
-package servicepb
-
-import (
-	context "context"
-	proto "go.unistack.org/micro-config-service/v3/proto"
-	api "go.unistack.org/micro/v3/api"
-	client "go.unistack.org/micro/v3/client"
-)
-
-var (
-	ConfigName = "Config"
-
-	ConfigEndpoints = []api.Endpoint{}
-)
-
-func NewConfigEndpoints() []api.Endpoint {
-	return ConfigEndpoints
-}
-
-type ConfigClient interface {
-	Load(ctx context.Context, req *proto.LoadRequest, opts ...client.CallOption) (*proto.LoadResponse, error)
-	Save(ctx context.Context, req *proto.SaveRequest, opts ...client.CallOption) (*proto.SaveResponse, error)
-}
-
-type ConfigServer interface {
-	Load(ctx context.Context, req *proto.LoadRequest, rsp *proto.LoadResponse) error
-	Save(ctx context.Context, req *proto.SaveRequest, rsp *proto.SaveResponse) error
-}

options.go

@@ -1,8 +1,8 @@
 package service
 
 import (
-	"go.unistack.org/micro/v3/client"
-	"go.unistack.org/micro/v3/config"
+	"go.unistack.org/micro/v4/client"
+	"go.unistack.org/micro/v4/config"
 )
 
 type clientKey struct{}

proto/micro_errors.pb.go

@@ -0,0 +1,17 @@
+// Code generated by protoc-gen-go-micro. DO NOT EDIT.
+// protoc-gen-go-micro version: v3.10.4
+
+package servicepb
+
+import (
+	protojson "google.golang.org/protobuf/encoding/protojson"
+)
+
+var (
+	marshaler = protojson.MarshalOptions{}
+)
+
+func (m *Error) Error() string {
+	buf, _ := marshaler.Marshal(m)
+	return string(buf)
+}

proto/service.pb.go

@@ -1,12 +1,14 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc        v6.33.4
 // source: service.proto
 
 package servicepb
 
 import (
+	_ "go.unistack.org/micro-proto/v4/api"
+	_ "go.unistack.org/micro-proto/v4/openapiv3"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -20,11 +22,13 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+// LoadRequest — запрос на загрузку конфигурации
 type LoadRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
+	// service — имя сервиса для которого загружается конфигурация
 	Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"`
 }
 
@@ -67,11 +71,13 @@ func (x *LoadRequest) GetService() string {
 	return ""
 }
 
+// LoadResponse — ответ на запрос конфигурации
 type LoadResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
+	// config — данные конфигурации в формате JSON/YAML
 	Config []byte `protobuf:"bytes,1,opt,name=config,proto3" json:"config,omitempty"`
 }
 
@@ -114,13 +120,16 @@ func (x *LoadResponse) GetConfig() []byte {
 	return nil
 }
 
+// SaveRequest — запрос на сохранение конфигурации
 type SaveRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
+	// service — имя сервиса для которого сохраняется конфигурация
 	Service string `protobuf:"bytes,1,opt,name=service,proto3" json:"service,omitempty"`
-	Config  []byte `protobuf:"bytes,2,opt,name=config,proto3" json:"config,omitempty"`
+	// config — данные конфигурации в формате JSON/YAML
+	Config []byte `protobuf:"bytes,2,opt,name=config,proto3" json:"config,omitempty"`
 }
 
 func (x *SaveRequest) Reset() {
@@ -169,6 +178,8 @@ func (x *SaveRequest) GetConfig() []byte {
 	return nil
 }
 
+// SaveResponse — ответ на запрос сохранения конфигурации
+// Пустое сообщение, успешное сохранение подтверждается отсутствием ошибки
 type SaveResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -207,33 +218,93 @@ func (*SaveResponse) Descriptor() ([]byte, []int) {
 	return file_service_proto_rawDescGZIP(), []int{3}
 }
 
+// Error — сообщение об ошибке
+// Возвращается при возникновении ошибок в методах сервиса Config
+type Error struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+
+	Msg string `protobuf:"bytes,1,opt,name=msg,proto3" json:"msg,omitempty"`
+}
+
+func (x *Error) Reset() {
+	*x = Error{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_service_proto_msgTypes[4]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Error) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Error) ProtoMessage() {}
+
+func (x *Error) ProtoReflect() protoreflect.Message {
+	mi := &file_service_proto_msgTypes[4]
+	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 Error.ProtoReflect.Descriptor instead.
+func (*Error) Descriptor() ([]byte, []int) {
+	return file_service_proto_rawDescGZIP(), []int{4}
+}
+
+func (x *Error) GetMsg() string {
+	if x != nil {
+		return x.Msg
+	}
+	return ""
+}
+
 var File_service_proto protoreflect.FileDescriptor
 
 var file_service_proto_rawDesc = []byte{
 	0x0a, 0x0d, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12,
-	0x07, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x22, 0x27, 0x0a, 0x0b, 0x4c, 0x6f, 0x61, 0x64,
-	0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x18, 0x0a, 0x07, 0x73, 0x65, 0x72, 0x76, 0x69,
-	0x63, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63,
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-	0x76, 0x65, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x32, 0x76, 0x0a, 0x06, 0x43, 0x6f,
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+	0x07, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x1a, 0x15, 0x61, 0x70, 0x69, 0x2f, 0x61, 0x6e,
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+	0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2e, 0x45, 0x72, 0x72, 0x6f, 0x72, 0xb2, 0xea, 0xff, 0xf9,
+	0x01, 0x07, 0x12, 0x05, 0x2f, 0x6c, 0x6f, 0x61, 0x64, 0x12, 0x66, 0x0a, 0x04, 0x53, 0x61, 0x76,
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+	0x10, 0x0a, 0x0e, 0x2e, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2e, 0x45, 0x72, 0x72, 0x6f,
+	0x72, 0xb2, 0xea, 0xff, 0xf9, 0x01, 0x0a, 0x22, 0x05, 0x2f, 0x73, 0x61, 0x76, 0x65, 0x3a, 0x01,
+	0x2a, 0x42, 0x39, 0x5a, 0x37, 0x67, 0x6f, 0x2e, 0x75, 0x6e, 0x69, 0x73, 0x74, 0x61, 0x63, 0x6b,
+	0x2e, 0x6f, 0x72, 0x67, 0x2f, 0x6d, 0x69, 0x63, 0x72, 0x6f, 0x2d, 0x63, 0x6f, 0x6e, 0x66, 0x69,
+	0x67, 0x2d, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x2f, 0x76, 0x34, 0x2f, 0x70, 0x72, 0x6f,
+	0x74, 0x6f, 0x3b, 0x73, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65, 0x70, 0x62, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -248,12 +319,13 @@ func file_service_proto_rawDescGZIP() []byte {
 	return file_service_proto_rawDescData
 }
 
-var file_service_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
+var file_service_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
 var file_service_proto_goTypes = []interface{}{
 	(*LoadRequest)(nil),  // 0: service.LoadRequest
 	(*LoadResponse)(nil), // 1: service.LoadResponse
 	(*SaveRequest)(nil),  // 2: service.SaveRequest
 	(*SaveResponse)(nil), // 3: service.SaveResponse
+	(*Error)(nil),        // 4: service.Error
 }
 var file_service_proto_depIdxs = []int32{
 	0, // 0: service.Config.Load:input_type -> service.LoadRequest
@@ -321,6 +393,18 @@ func file_service_proto_init() {
 				return nil
 			}
 		}
+		file_service_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
+			switch v := v.(*Error); 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{
@@ -328,7 +412,7 @@ func file_service_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_service_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   4,
+			NumMessages:   5,
 			NumExtensions: 0,
 			NumServices:   1,
 		},

proto/service.proto

@@ -1,24 +1,73 @@
 syntax = "proto3";
 
 package service;
-option go_package="go.unistack.org/micro-config-service/v3/proto;servicepb";
+option go_package="go.unistack.org/micro-config-service/v4/proto;servicepb";
 
+import "api/annotations.proto";
+import "openapiv3/annotations.proto";
+
+// Config — сервис управления конфигурациями
+// Предоставляет API для загрузки и сохранения конфигураций сервисов
 service Config {
-	rpc Load(LoadRequest) returns (LoadResponse) {};
-	rpc Save(SaveRequest) returns (SaveResponse) {};
+    // Load загружает конфигурацию для указанного сервиса
+    // Возвращает конфигурацию в формате JSON/YAML в поле config
+    rpc Load(LoadRequest) returns (LoadResponse) {
+        option (micro.openapiv3.openapiv3_operation) = {
+            operation_id: "Load";
+            responses: {
+                default: {
+                    reference: {
+                        _ref: ".service.Error";
+                    };
+                };
+            };
+        };
+        option (micro.api.http) = { get: "/load"; };
+    };
+    
+    // Save сохраняет конфигурацию для указанного сервиса
+    // Принимает конфигурацию в формате JSON/YAML в поле config
+    rpc Save(SaveRequest) returns (SaveResponse) {
+        option (micro.openapiv3.openapiv3_operation) = {
+            operation_id: "Save";
+            responses: {
+                default: {
+                    reference: {
+                        _ref: ".service.Error";
+                    };
+                };
+            };
+        };
+        option (micro.api.http) = { post: "/save"; body: "*"; };
+    };
 }
 
+// LoadRequest — запрос на загрузку конфигурации
 message LoadRequest {
-  string service = 1;
+    // service — имя сервиса для которого загружается конфигурация
+    string service = 1;
 };
 
+// LoadResponse — ответ на запрос конфигурации
 message LoadResponse {
-  bytes config = 1;
+    // config — данные конфигурации в формате JSON/YAML
+    bytes config = 1;
 };
 
+// SaveRequest — запрос на сохранение конфигурации
 message SaveRequest {
-  string service = 1;
-  bytes config = 2;
+    // service — имя сервиса для которого сохраняется конфигурация
+    string service = 1;
+    // config — данные конфигурации в формате JSON/YAML
+    bytes config = 2;
 };
 
+// SaveResponse — ответ на запрос сохранения конфигурации
+// Пустое сообщение, успешное сохранение подтверждается отсутствием ошибки
 message SaveResponse {};
+
+// Error — сообщение об ошибке
+// Возвращается при возникновении ошибок в методах сервиса Config
+message Error {
+    string msg = 1;
+}

proto/service_grpc.pb.go

@@ -1,137 +0,0 @@
-// Code generated by protoc-gen-go-grpc. DO NOT EDIT.
-
-package servicepb
-
-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
-
-// ConfigClient is the client API for Config 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 ConfigClient interface {
-	Load(ctx context.Context, in *LoadRequest, opts ...grpc.CallOption) (*LoadResponse, error)
-	Save(ctx context.Context, in *SaveRequest, opts ...grpc.CallOption) (*SaveResponse, error)
-}
-
-type configClient struct {
-	cc grpc.ClientConnInterface
-}
-
-func NewConfigClient(cc grpc.ClientConnInterface) ConfigClient {
-	return &configClient{cc}
-}
-
-func (c *configClient) Load(ctx context.Context, in *LoadRequest, opts ...grpc.CallOption) (*LoadResponse, error) {
-	out := new(LoadResponse)
-	err := c.cc.Invoke(ctx, "/service.Config/Load", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *configClient) Save(ctx context.Context, in *SaveRequest, opts ...grpc.CallOption) (*SaveResponse, error) {
-	out := new(SaveResponse)
-	err := c.cc.Invoke(ctx, "/service.Config/Save", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// ConfigServer is the server API for Config service.
-// All implementations must embed UnimplementedConfigServer
-// for forward compatibility
-type ConfigServer interface {
-	Load(context.Context, *LoadRequest) (*LoadResponse, error)
-	Save(context.Context, *SaveRequest) (*SaveResponse, error)
-	mustEmbedUnimplementedConfigServer()
-}
-
-// UnimplementedConfigServer must be embedded to have forward compatible implementations.
-type UnimplementedConfigServer struct {
-}
-
-func (UnimplementedConfigServer) Load(context.Context, *LoadRequest) (*LoadResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method Load not implemented")
-}
-func (UnimplementedConfigServer) Save(context.Context, *SaveRequest) (*SaveResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method Save not implemented")
-}
-func (UnimplementedConfigServer) mustEmbedUnimplementedConfigServer() {}
-
-// UnsafeConfigServer may be embedded to opt out of forward compatibility for this service.
-// Use of this interface is not recommended, as added methods to ConfigServer will
-// result in compilation errors.
-type UnsafeConfigServer interface {
-	mustEmbedUnimplementedConfigServer()
-}
-
-func RegisterConfigServer(s grpc.ServiceRegistrar, srv ConfigServer) {
-	s.RegisterService(&Config_ServiceDesc, srv)
-}
-
-func _Config_Load_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(LoadRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(ConfigServer).Load(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/service.Config/Load",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(ConfigServer).Load(ctx, req.(*LoadRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _Config_Save_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(SaveRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(ConfigServer).Save(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/service.Config/Save",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(ConfigServer).Save(ctx, req.(*SaveRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-// Config_ServiceDesc is the grpc.ServiceDesc for Config service.
-// It's only intended for direct use with grpc.RegisterService,
-// and not to be introspected or modified (even as a copy)
-var Config_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "service.Config",
-	HandlerType: (*ConfigServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "Load",
-			Handler:    _Config_Load_Handler,
-		},
-		{
-			MethodName: "Save",
-			Handler:    _Config_Save_Handler,
-		},
-	},
-	Streams:  []grpc.StreamDesc{},
-	Metadata: "service.proto",
-}

proto/service_micro.pb.go

@@ -0,0 +1,26 @@
+// Code generated by protoc-gen-go-micro. DO NOT EDIT.
+// versions:
+// - protoc-gen-go-micro v3.10.4
+// - protoc              v6.33.4
+// source: service.proto
+
+package servicepb
+
+import (
+	context "context"
+	client "go.unistack.org/micro/v4/client"
+)
+
+var (
+	ConfigName = "Config"
+)
+
+type ConfigClient interface {
+	Load(ctx context.Context, req *LoadRequest, opts ...client.CallOption) (*LoadResponse, error)
+	Save(ctx context.Context, req *SaveRequest, opts ...client.CallOption) (*SaveResponse, error)
+}
+
+type ConfigServer interface {
+	Load(ctx context.Context, req *LoadRequest, rsp *LoadResponse) error
+	Save(ctx context.Context, req *SaveRequest, rsp *SaveResponse) error
+}

service.go

@@ -1,23 +1,26 @@
-package service // import "go.unistack.org/micro-config-service/v3"
+package service
 
 import (
 	"context"
 	"fmt"
 
-	"github.com/imdario/mergo"
-	pbmicro "go.unistack.org/micro-config-service/v3/micro"
-	pb "go.unistack.org/micro-config-service/v3/proto"
-	"go.unistack.org/micro/v3/client"
-	"go.unistack.org/micro/v3/config"
-	rutil "go.unistack.org/micro/v3/util/reflect"
+	"dario.cat/mergo"
+	pbgrpc "go.unistack.org/micro-config-service/v4/grpc"
+	pbhttp "go.unistack.org/micro-config-service/v4/http"
+	pb "go.unistack.org/micro-config-service/v4/proto"
+	"go.unistack.org/micro/v4/client"
+	"go.unistack.org/micro/v4/config"
+	rutil "go.unistack.org/micro/v4/util/reflect"
 )
 
+var _ config.Config = &serviceConfig{}
+
 var DefaultStructTag = "service"
 
 type serviceConfig struct {
 	opts    config.Options
 	service string
-	client  pbmicro.ConfigClient
+	client  pb.ConfigClient
 }
 
 func (c *serviceConfig) Options() config.Options {
@@ -25,6 +28,10 @@ func (c *serviceConfig) Options() config.Options {
 }
 
 func (c *serviceConfig) Init(opts ...config.Option) error {
+	if err := config.DefaultBeforeInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
+		return err
+	}
+
 	for _, o := range opts {
 		o(&c.opts)
 	}
@@ -39,41 +46,77 @@ func (c *serviceConfig) Init(opts ...config.Option) error {
 		}
 	}
 
-	if cli == nil {
-		err := fmt.Errorf("missing client option")
-		c.opts.Logger.Error(c.opts.Context, err)
+	if c.opts.Codec == nil {
+		err := fmt.Errorf("missing Codec option")
 		if !c.opts.AllowFail {
 			return err
 		}
+
+		if err := config.DefaultAfterInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
+			return err
+		}
+
+		return nil
+	}
+
+	if cli == nil {
+		err := fmt.Errorf("missing Client option")
+		if !c.opts.AllowFail {
+			return err
+		}
+
+		if err := config.DefaultAfterInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
+			return err
+		}
+
 		return nil
 	}
 
 	if c.service == "" {
 		err := fmt.Errorf("missing Service option")
-		c.opts.Logger.Error(c.opts.Context, err)
 		if !c.opts.AllowFail {
 			return err
 		}
+
+		if err := config.DefaultAfterInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
+			return err
+		}
+
 		return nil
 	}
 
-	c.client = pbmicro.NewConfigClient(c.service, cli)
+	switch cli.String() {
+	case "http":
+		c.client = pbhttp.NewConfigClient(c.service, cli)
+	case "grpc":
+		c.client = pbgrpc.NewConfigClient(c.service, cli)
+	default:
+		return fmt.Errorf("unknown client option")
+	}
+
+	if err := config.DefaultAfterInit(c.opts.Context, c); err != nil && !c.opts.AllowFail {
+		return err
+	}
 
 	return nil
 }
 
 func (c *serviceConfig) Load(ctx context.Context, opts ...config.LoadOption) error {
-	if err := config.DefaultBeforeLoad(ctx, c); err != nil {
+	if err := config.DefaultBeforeLoad(ctx, c); err != nil && !c.opts.AllowFail {
 		return err
 	}
 
 	rsp, err := c.client.Load(ctx, &pb.LoadRequest{Service: c.service})
 	if err != nil {
-		c.opts.Logger.Errorf(ctx, "service load error: %v", err)
 		if !c.opts.AllowFail {
 			return fmt.Errorf("failed to load config: %w", err)
 		}
-		return config.DefaultAfterLoad(ctx, c)
+
+		if err = config.DefaultAfterLoad(ctx, c); err != nil && !c.opts.AllowFail {
+			return err
+		}
+
+		return nil
 	}
 
 	options := config.NewLoadOptions(opts...)
@@ -85,22 +128,24 @@ func (c *serviceConfig) Load(ctx context.Context, opts ...config.LoadOption) err
 		mopts = append(mopts, mergo.WithAppendSlice)
 	}
 
-	src, err := rutil.Zero(c.opts.Struct)
+	dst := c.opts.Struct
+	if options.Struct != nil {
+		dst = options.Struct
+	}
+
+	src, err := rutil.Zero(dst)
 	if err == nil {
 		err = c.opts.Codec.Unmarshal(rsp.Config, src)
 		if err == nil {
-			err = mergo.Merge(c.opts.Struct, src, mopts...)
+			err = mergo.Merge(dst, src, mopts...)
 		}
 	}
 
-	if err != nil {
-		c.opts.Logger.Errorf(ctx, "service load error: %v", err)
-		if !c.opts.AllowFail {
-			return fmt.Errorf("failed to load config: %w", err)
-		}
+	if err != nil && !c.opts.AllowFail {
+		return fmt.Errorf("failed to load config: %w", err)
 	}
 
-	if err := config.DefaultAfterLoad(ctx, c); err != nil {
+	if err := config.DefaultAfterLoad(ctx, c); err != nil && !c.opts.AllowFail {
 		return err
 	}
 
@@ -108,22 +153,26 @@ func (c *serviceConfig) Load(ctx context.Context, opts ...config.LoadOption) err
 }
 
 func (c *serviceConfig) Save(ctx context.Context, opts ...config.SaveOption) error {
-	if err := config.DefaultBeforeSave(ctx, c); err != nil {
+	if err := config.DefaultBeforeSave(ctx, c); err != nil && !c.opts.AllowFail {
 		return err
 	}
 
-	buf, err := c.opts.Codec.Marshal(c.opts.Struct)
+	options := config.NewSaveOptions(opts...)
+
+	dst := c.opts.Struct
+	if options.Struct != nil {
+		dst = options.Struct
+	}
+
+	buf, err := c.opts.Codec.Marshal(dst)
 	if err == nil {
 		_, err = c.client.Save(ctx, &pb.SaveRequest{Service: c.service, Config: buf})
 	}
-	if err != nil {
-		c.opts.Logger.Errorf(ctx, "service save error: %v", err)
-		if !c.opts.AllowFail {
-			return fmt.Errorf("failed to save config: %w", err)
-		}
+	if err != nil && !c.opts.AllowFail {
+		return fmt.Errorf("failed to save config: %w", err)
 	}
 
-	if err := config.DefaultAfterSave(ctx, c); err != nil {
+	if err := config.DefaultAfterSave(ctx, c); err != nil && !c.opts.AllowFail {
 		return err
 	}
 
@@ -142,7 +191,7 @@ func (c *serviceConfig) Watch(ctx context.Context, opts ...config.WatchOption) (
 	return nil, fmt.Errorf("not implemented")
 }
 
-func NewConfig(opts ...config.Option) config.Config {
+func NewConfig(opts ...config.Option) *serviceConfig {
 	options := config.NewOptions(opts...)
 	if len(options.StructTag) == 0 {
 		options.StructTag = DefaultStructTag