21 changed files with 440 additions and 1120 deletions
--- a/.github/dependabot.yml
+++ b/.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"
--- a/.github/stale.sh
+++ b/.github/stale.sh
@ -0,0 +1,13 @@
+#!/bin/bash -ex
+
+export PATH=$PATH:$(pwd)/bin
+export GO111MODULE=on
+export GOBIN=$(pwd)/bin
+
+#go get github.com/rvflash/goup@v0.4.1
+
+#goup -v ./...
+#go get github.com/psampaz/go-mod-outdated@v0.6.0
+go list -u -m -mod=mod -json all | go-mod-outdated -update -direct -ci || true
+
+#go list -u -m -json all | go-mod-outdated -update
--- a/.github/workflows/autoapprove.yml
+++ b/.github/workflows/autoapprove.yml
@ -1,20 +0,0 @@
-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@v2
-        if: github.actor == 'vtolstov' || github.actor == 'dependabot[bot]'
-        id: approve
-        with:
-          github-token: ${{ secrets.GITHUB_TOKEN }}
--- a/.github/workflows/automerge.yml
+++ b/.github/workflows/automerge.yml
@ -1,21 +0,0 @@
-name: "automerge"
-
-on:
-  pull_request_target:
-    types: [assigned, opened, synchronize, reopened]
-
-permissions:
-  pull-requests: write
-  contents: write
-
-jobs:
-  automerge:
-    runs-on: ubuntu-latest
-    if: github.actor == 'vtolstov'
-    steps:
-      - name: merge
-        id: merge
-        run: gh pr merge --auto --merge "$PR_URL"
-        env:
-          PR_URL: ${{github.event.pull_request.html_url}}
-          GITHUB_TOKEN: ${{secrets.TOKEN}}
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@ -3,18 +3,17 @@ on:
 push:
    branches:
    - master
-    - v3
 jobs:
  test:
    name: test
    runs-on: ubuntu-latest
    steps:
    - name: setup
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@v1
      with:
-        go-version: 1.16
+        go-version: 1.15
    - name: checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v2
    - name: cache
      uses: actions/cache@v2
      with:
@ -32,9 +31,9 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
      - name: lint
-        uses: golangci/golangci-lint-action@v3.1.0
+        uses: golangci/golangci-lint-action@v1
        continue-on-error: true
        with:
          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@ -1,78 +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, 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@v2
-      with:
-        go-version: 1.16
-    # Initializes the CodeQL tools for scanning.
-    - name: init
-      uses: github/codeql-action/init@v1
-      with:
-        languages: ${{ matrix.language }}
-        # If you wish to specify custom queries, you can do so here or in a config file.
-        # By default, queries listed here will override any specified in a config file.
-        # Prefix the list here with "+" to use these queries and those in the config file.
-        # queries: ./path/to/local/query, your-org/your-repo/queries@main
-
-    # Autobuild attempts to build any compiled languages  (C/C++, C#, or Java).
-    # If this step fails, then you should remove it and run the build manually (see below)
-    - name: autobuild
-      uses: github/codeql-action/autobuild@v1
-
-    # ℹ️ Command-line programs to run using the OS shell.
-    # 📚 https://git.io/JvXDl
-
-    # ✏️ If the Autobuild fails above, remove it and uncomment the following three lines
-    #    and modify them (or add more) to build your code if your project
-    #    uses a compiled language
-
-    #- run: |
-    #   make bootstrap
-    #   make release
-
-    - name: analyze
-      uses: github/codeql-action/analyze@v1
--- a/.github/workflows/dependabot-automerge.yml
+++ b/.github/workflows/dependabot-automerge.yml
@ -1,27 +0,0 @@
-name: "dependabot-automerge"
-
-on:
-  pull_request_target:
-    types: [assigned, opened, synchronize, reopened]
-
-permissions:
-  pull-requests: write
-  contents: write
-
-jobs:
-  automerge:
-    runs-on: ubuntu-latest
-    if: github.actor == 'dependabot[bot]'
-    steps:
-      - name: metadata
-        id: metadata
-        uses: dependabot/fetch-metadata@v1.3.0
-        with:
-          github-token: "${{ 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}}
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@ -3,18 +3,17 @@ on:
  pull_request:
    branches:
    - master
-    - v3
 jobs:
  test:
    name: test
    runs-on: ubuntu-latest
    steps:
    - name: setup
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@v1
      with:
-        go-version: 1.16
+        go-version: 1.15
    - name: checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v2
    - name: cache
      uses: actions/cache@v2
      with:
@ -32,9 +31,9 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - name: checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v2
      - name: lint
-        uses: golangci/golangci-lint-action@v3.1.0
+        uses: golangci/golangci-lint-action@v1
        continue-on-error: true
        with:
          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
--- a/generate.go
+++ b/generate.go
@ -1,3 +1,3 @@
 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,paths=source_relative:./micro proto/broker.proto
+//go:generate protoc -I./proto -I. --go-grpc_out=paths=source_relative:./proto --go_out=paths=source_relative:./proto --micro_out=components=micro|grpc,paths=source_relative:./proto proto/broker.proto
--- a/go.mod
+++ b/go.mod
@ -1,9 +1,10 @@
-module go.unistack.org/micro-broker-service/v3
+module github.com/unistack-org/micro-broker-service/v3

-go 1.16
+go 1.15

 require (
-	go.unistack.org/micro/v3 v3.8.21
-	google.golang.org/grpc v1.44.0
-	google.golang.org/protobuf v1.27.1
+	github.com/golang/protobuf v1.4.3
+	github.com/unistack-org/micro/v3 v3.2.4
+	google.golang.org/grpc v1.27.1
+	google.golang.org/protobuf v1.25.0
 )
--- a/go.sum
+++ b/go.sum
@ -1,147 +1,112 @@
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-github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
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 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
-gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f h1:BLraFXnmrev5lT+xlilqcH8XK9/i0At2xKjWk4p6zsU=
+gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
-gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
--- a/micro/broker_micro.pb.go
+++ b/micro/broker_micro.pb.go
@ -1,68 +0,0 @@
-// Code generated by protoc-gen-go-micro. DO NOT EDIT.
-// protoc-gen-go-micro version: v3.5.3
-// source: broker.proto
-
-package servicepb
-
-import (
-	context "context"
-	proto "go.unistack.org/micro-broker-service/v3/proto"
-	api "go.unistack.org/micro/v3/api"
-	client "go.unistack.org/micro/v3/client"
-)
-
-var (
-	BrokerServiceName = "BrokerService"
-
-	BrokerServiceEndpoints = []api.Endpoint{}
-)
-
-func NewBrokerServiceEndpoints() []api.Endpoint {
-	return BrokerServiceEndpoints
-}
-
-type BrokerServiceClient interface {
-	Publish(ctx context.Context, req *proto.PublishRequest, opts ...client.CallOption) (*proto.PublishResponse, error)
-	BatchPublish(ctx context.Context, req *proto.BatchPublishRequest, opts ...client.CallOption) (*proto.BatchPublishResponse, error)
-	Subscribe(ctx context.Context, req *proto.SubscribeRequest, opts ...client.CallOption) (BrokerService_SubscribeClient, error)
-	BatchSubscribe(ctx context.Context, req *proto.BatchSubscribeRequest, opts ...client.CallOption) (BrokerService_BatchSubscribeClient, error)
-}
-
-type BrokerService_SubscribeClient interface {
-	Context() context.Context
-	SendMsg(msg interface{}) error
-	RecvMsg(msg interface{}) error
-	Close() error
-	Recv() (*proto.Message, error)
-}
-
-type BrokerService_BatchSubscribeClient interface {
-	Context() context.Context
-	SendMsg(msg interface{}) error
-	RecvMsg(msg interface{}) error
-	Close() error
-	Recv() (*proto.Message, error)
-}
-
-type BrokerServiceServer interface {
-	Publish(ctx context.Context, req *proto.PublishRequest, rsp *proto.PublishResponse) error
-	BatchPublish(ctx context.Context, req *proto.BatchPublishRequest, rsp *proto.BatchPublishResponse) error
-	Subscribe(ctx context.Context, req *proto.SubscribeRequest, stream BrokerService_SubscribeStream) error
-	BatchSubscribe(ctx context.Context, req *proto.BatchSubscribeRequest, stream BrokerService_BatchSubscribeStream) error
-}
-
-type BrokerService_SubscribeStream interface {
-	Context() context.Context
-	SendMsg(msg interface{}) error
-	RecvMsg(msg interface{}) error
-	Close() error
-	Send(msg *proto.Message) error
-}
-
-type BrokerService_BatchSubscribeStream interface {
-	Context() context.Context
-	SendMsg(msg interface{}) error
-	RecvMsg(msg interface{}) error
-	Close() error
-	Send(msg *proto.Message) error
-}
--- a/micro/broker_micro_rpc.pb.go
+++ b/micro/broker_micro_rpc.pb.go
@ -1,212 +0,0 @@
-// Code generated by protoc-gen-go-micro. DO NOT EDIT.
-// protoc-gen-go-micro version: v3.5.3
-// source: broker.proto
-
-package servicepb
-
-import (
-	context "context"
-	proto "go.unistack.org/micro-broker-service/v3/proto"
-	api "go.unistack.org/micro/v3/api"
-	client "go.unistack.org/micro/v3/client"
-	server "go.unistack.org/micro/v3/server"
-)
-
-type brokerServiceClient struct {
-	c    client.Client
-	name string
-}
-
-func NewBrokerServiceClient(name string, c client.Client) BrokerServiceClient {
-	return &brokerServiceClient{c: c, name: name}
-}
-
-func (c *brokerServiceClient) Publish(ctx context.Context, req *proto.PublishRequest, opts ...client.CallOption) (*proto.PublishResponse, error) {
-	rsp := &proto.PublishResponse{}
-	err := c.c.Call(ctx, c.c.NewRequest(c.name, "BrokerService.Publish", req), rsp, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return rsp, nil
-}
-
-func (c *brokerServiceClient) BatchPublish(ctx context.Context, req *proto.BatchPublishRequest, opts ...client.CallOption) (*proto.BatchPublishResponse, error) {
-	rsp := &proto.BatchPublishResponse{}
-	err := c.c.Call(ctx, c.c.NewRequest(c.name, "BrokerService.BatchPublish", req), rsp, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return rsp, nil
-}
-
-func (c *brokerServiceClient) Subscribe(ctx context.Context, req *proto.SubscribeRequest, opts ...client.CallOption) (BrokerService_SubscribeClient, error) {
-	stream, err := c.c.Stream(ctx, c.c.NewRequest(c.name, "BrokerService.Subscribe", &proto.SubscribeRequest{}), opts...)
-	if err != nil {
-		return nil, err
-	}
-	if err := stream.Send(req); err != nil {
-		return nil, err
-	}
-	return &brokerServiceClientSubscribe{stream}, nil
-}
-
-type brokerServiceClientSubscribe struct {
-	stream client.Stream
-}
-
-func (s *brokerServiceClientSubscribe) Close() error {
-	return s.stream.Close()
-}
-
-func (s *brokerServiceClientSubscribe) Context() context.Context {
-	return s.stream.Context()
-}
-
-func (s *brokerServiceClientSubscribe) SendMsg(msg interface{}) error {
-	return s.stream.Send(msg)
-}
-
-func (s *brokerServiceClientSubscribe) RecvMsg(msg interface{}) error {
-	return s.stream.Recv(msg)
-}
-
-func (s *brokerServiceClientSubscribe) Recv() (*proto.Message, error) {
-	msg := &proto.Message{}
-	if err := s.stream.Recv(msg); err != nil {
-		return nil, err
-	}
-	return msg, nil
-}
-
-func (c *brokerServiceClient) BatchSubscribe(ctx context.Context, req *proto.BatchSubscribeRequest, opts ...client.CallOption) (BrokerService_BatchSubscribeClient, error) {
-	stream, err := c.c.Stream(ctx, c.c.NewRequest(c.name, "BrokerService.BatchSubscribe", &proto.BatchSubscribeRequest{}), opts...)
-	if err != nil {
-		return nil, err
-	}
-	if err := stream.Send(req); err != nil {
-		return nil, err
-	}
-	return &brokerServiceClientBatchSubscribe{stream}, nil
-}
-
-type brokerServiceClientBatchSubscribe struct {
-	stream client.Stream
-}
-
-func (s *brokerServiceClientBatchSubscribe) Close() error {
-	return s.stream.Close()
-}
-
-func (s *brokerServiceClientBatchSubscribe) Context() context.Context {
-	return s.stream.Context()
-}
-
-func (s *brokerServiceClientBatchSubscribe) SendMsg(msg interface{}) error {
-	return s.stream.Send(msg)
-}
-
-func (s *brokerServiceClientBatchSubscribe) RecvMsg(msg interface{}) error {
-	return s.stream.Recv(msg)
-}
-
-func (s *brokerServiceClientBatchSubscribe) Recv() (*proto.Message, error) {
-	msg := &proto.Message{}
-	if err := s.stream.Recv(msg); err != nil {
-		return nil, err
-	}
-	return msg, nil
-}
-
-type brokerServiceServer struct {
-	BrokerServiceServer
-}
-
-func (h *brokerServiceServer) Publish(ctx context.Context, req *proto.PublishRequest, rsp *proto.PublishResponse) error {
-	return h.BrokerServiceServer.Publish(ctx, req, rsp)
-}
-
-func (h *brokerServiceServer) BatchPublish(ctx context.Context, req *proto.BatchPublishRequest, rsp *proto.BatchPublishResponse) error {
-	return h.BrokerServiceServer.BatchPublish(ctx, req, rsp)
-}
-
-func (h *brokerServiceServer) Subscribe(ctx context.Context, stream server.Stream) error {
-	msg := &proto.SubscribeRequest{}
-	if err := stream.Recv(msg); err != nil {
-		return err
-	}
-	return h.BrokerServiceServer.Subscribe(ctx, msg, &brokerServiceSubscribeStream{stream})
-}
-
-type brokerServiceSubscribeStream struct {
-	stream server.Stream
-}
-
-func (s *brokerServiceSubscribeStream) Close() error {
-	return s.stream.Close()
-}
-
-func (s *brokerServiceSubscribeStream) Context() context.Context {
-	return s.stream.Context()
-}
-
-func (s *brokerServiceSubscribeStream) SendMsg(msg interface{}) error {
-	return s.stream.Send(msg)
-}
-
-func (s *brokerServiceSubscribeStream) RecvMsg(msg interface{}) error {
-	return s.stream.Recv(msg)
-}
-
-func (s *brokerServiceSubscribeStream) Send(msg *proto.Message) error {
-	return s.stream.Send(msg)
-}
-
-func (h *brokerServiceServer) BatchSubscribe(ctx context.Context, stream server.Stream) error {
-	msg := &proto.BatchSubscribeRequest{}
-	if err := stream.Recv(msg); err != nil {
-		return err
-	}
-	return h.BrokerServiceServer.BatchSubscribe(ctx, msg, &brokerServiceBatchSubscribeStream{stream})
-}
-
-type brokerServiceBatchSubscribeStream struct {
-	stream server.Stream
-}
-
-func (s *brokerServiceBatchSubscribeStream) Close() error {
-	return s.stream.Close()
-}
-
-func (s *brokerServiceBatchSubscribeStream) Context() context.Context {
-	return s.stream.Context()
-}
-
-func (s *brokerServiceBatchSubscribeStream) SendMsg(msg interface{}) error {
-	return s.stream.Send(msg)
-}
-
-func (s *brokerServiceBatchSubscribeStream) RecvMsg(msg interface{}) error {
-	return s.stream.Recv(msg)
-}
-
-func (s *brokerServiceBatchSubscribeStream) Send(msg *proto.Message) error {
-	return s.stream.Send(msg)
-}
-
-func RegisterBrokerServiceServer(s server.Server, sh BrokerServiceServer, opts ...server.HandlerOption) error {
-	type brokerService interface {
-		Publish(ctx context.Context, req *proto.PublishRequest, rsp *proto.PublishResponse) error
-		BatchPublish(ctx context.Context, req *proto.BatchPublishRequest, rsp *proto.BatchPublishResponse) error
-		Subscribe(ctx context.Context, stream server.Stream) error
-		BatchSubscribe(ctx context.Context, stream server.Stream) error
-	}
-	type BrokerService struct {
-		brokerService
-	}
-	h := &brokerServiceServer{sh}
-	var nopts []server.HandlerOption
-	for _, endpoint := range BrokerServiceEndpoints {
-		nopts = append(nopts, api.WithEndpoint(&endpoint))
-	}
-	return s.Handle(s.NewHandler(&BrokerService{h}, append(nopts, opts...)...))
-}
--- a/options.go
+++ b/options.go
@ -1,8 +1,8 @@
 package service

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

 type clientKey struct{}
--- a/proto/broker.pb.go
+++ b/proto/broker.pb.go
@ -1,12 +1,13 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
-// 	protoc-gen-go v1.26.0
-// 	protoc        v3.17.3
+// 	protoc-gen-go v1.25.0-devel
+// 	protoc        v3.6.1
 // source: broker.proto

-package servicepb
+package service

 import (
+	proto "github.com/golang/protobuf/proto"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@ -20,6 +21,48 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )

+// This is a compile-time assertion that a sufficiently up-to-date version
+// of the legacy proto package is being used.
+const _ = proto.ProtoPackageIsVersion4
+
+type Empty struct {
+	state         protoimpl.MessageState
+	sizeCache     protoimpl.SizeCache
+	unknownFields protoimpl.UnknownFields
+}
+
+func (x *Empty) Reset() {
+	*x = Empty{}
+	if protoimpl.UnsafeEnabled {
+		mi := &file_broker_proto_msgTypes[0]
+		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
+		ms.StoreMessageInfo(mi)
+	}
+}
+
+func (x *Empty) String() string {
+	return protoimpl.X.MessageStringOf(x)
+}
+
+func (*Empty) ProtoMessage() {}
+
+func (x *Empty) ProtoReflect() protoreflect.Message {
+	mi := &file_broker_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 Empty.ProtoReflect.Descriptor instead.
+func (*Empty) Descriptor() ([]byte, []int) {
+	return file_broker_proto_rawDescGZIP(), []int{0}
+}
+
 type PublishRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@ -32,7 +75,7 @@ type PublishRequest struct {
 func (x *PublishRequest) Reset() {
 	*x = PublishRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_broker_proto_msgTypes[0]
+		mi := &file_broker_proto_msgTypes[1]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@ -45,7 +88,7 @@ func (x *PublishRequest) String() string {
 func (*PublishRequest) ProtoMessage() {}

 func (x *PublishRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_broker_proto_msgTypes[0]
+	mi := &file_broker_proto_msgTypes[1]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -58,7 +101,7 @@ func (x *PublishRequest) ProtoReflect() protoreflect.Message {

 // Deprecated: Use PublishRequest.ProtoReflect.Descriptor instead.
 func (*PublishRequest) Descriptor() ([]byte, []int) {
-	return file_broker_proto_rawDescGZIP(), []int{0}
+	return file_broker_proto_rawDescGZIP(), []int{1}
 }

 func (x *PublishRequest) GetTopic() string {
@ -75,137 +118,6 @@ func (x *PublishRequest) GetMessage() *Message {
 	return nil
 }

-type BatchPublishRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Topic   string     `protobuf:"bytes,1,opt,name=topic,proto3" json:"topic,omitempty"`
-	Message []*Message `protobuf:"bytes,2,rep,name=message,proto3" json:"message,omitempty"`
-}
-
-func (x *BatchPublishRequest) Reset() {
-	*x = BatchPublishRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_broker_proto_msgTypes[1]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *BatchPublishRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*BatchPublishRequest) ProtoMessage() {}
-
-func (x *BatchPublishRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_broker_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 BatchPublishRequest.ProtoReflect.Descriptor instead.
-func (*BatchPublishRequest) Descriptor() ([]byte, []int) {
-	return file_broker_proto_rawDescGZIP(), []int{1}
-}
-
-func (x *BatchPublishRequest) GetTopic() string {
-	if x != nil {
-		return x.Topic
-	}
-	return ""
-}
-
-func (x *BatchPublishRequest) GetMessage() []*Message {
-	if x != nil {
-		return x.Message
-	}
-	return nil
-}
-
-type PublishResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-}
-
-func (x *PublishResponse) Reset() {
-	*x = PublishResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_broker_proto_msgTypes[2]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *PublishResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*PublishResponse) ProtoMessage() {}
-
-func (x *PublishResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_broker_proto_msgTypes[2]
-	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 PublishResponse.ProtoReflect.Descriptor instead.
-func (*PublishResponse) Descriptor() ([]byte, []int) {
-	return file_broker_proto_rawDescGZIP(), []int{2}
-}
-
-type BatchPublishResponse struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-}
-
-func (x *BatchPublishResponse) Reset() {
-	*x = BatchPublishResponse{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_broker_proto_msgTypes[3]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *BatchPublishResponse) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*BatchPublishResponse) ProtoMessage() {}
-
-func (x *BatchPublishResponse) ProtoReflect() protoreflect.Message {
-	mi := &file_broker_proto_msgTypes[3]
-	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 BatchPublishResponse.ProtoReflect.Descriptor instead.
-func (*BatchPublishResponse) Descriptor() ([]byte, []int) {
-	return file_broker_proto_rawDescGZIP(), []int{3}
-}
-
 type SubscribeRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@ -218,7 +130,7 @@ type SubscribeRequest struct {
 func (x *SubscribeRequest) Reset() {
 	*x = SubscribeRequest{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_broker_proto_msgTypes[4]
+		mi := &file_broker_proto_msgTypes[2]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@ -231,7 +143,7 @@ func (x *SubscribeRequest) String() string {
 func (*SubscribeRequest) ProtoMessage() {}

 func (x *SubscribeRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_broker_proto_msgTypes[4]
+	mi := &file_broker_proto_msgTypes[2]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -244,7 +156,7 @@ func (x *SubscribeRequest) ProtoReflect() protoreflect.Message {

 // Deprecated: Use SubscribeRequest.ProtoReflect.Descriptor instead.
 func (*SubscribeRequest) Descriptor() ([]byte, []int) {
-	return file_broker_proto_rawDescGZIP(), []int{4}
+	return file_broker_proto_rawDescGZIP(), []int{2}
 }

 func (x *SubscribeRequest) GetTopic() string {
@ -261,61 +173,6 @@ func (x *SubscribeRequest) GetGroup() string {
 	return ""
 }

-type BatchSubscribeRequest struct {
-	state         protoimpl.MessageState
-	sizeCache     protoimpl.SizeCache
-	unknownFields protoimpl.UnknownFields
-
-	Topic string `protobuf:"bytes,1,opt,name=topic,proto3" json:"topic,omitempty"`
-	Group string `protobuf:"bytes,2,opt,name=group,proto3" json:"group,omitempty"`
-}
-
-func (x *BatchSubscribeRequest) Reset() {
-	*x = BatchSubscribeRequest{}
-	if protoimpl.UnsafeEnabled {
-		mi := &file_broker_proto_msgTypes[5]
-		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
-		ms.StoreMessageInfo(mi)
-	}
-}
-
-func (x *BatchSubscribeRequest) String() string {
-	return protoimpl.X.MessageStringOf(x)
-}
-
-func (*BatchSubscribeRequest) ProtoMessage() {}
-
-func (x *BatchSubscribeRequest) ProtoReflect() protoreflect.Message {
-	mi := &file_broker_proto_msgTypes[5]
-	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 BatchSubscribeRequest.ProtoReflect.Descriptor instead.
-func (*BatchSubscribeRequest) Descriptor() ([]byte, []int) {
-	return file_broker_proto_rawDescGZIP(), []int{5}
-}
-
-func (x *BatchSubscribeRequest) GetTopic() string {
-	if x != nil {
-		return x.Topic
-	}
-	return ""
-}
-
-func (x *BatchSubscribeRequest) GetGroup() string {
-	if x != nil {
-		return x.Group
-	}
-	return ""
-}
-
 type Message struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@ -328,7 +185,7 @@ type Message struct {
 func (x *Message) Reset() {
 	*x = Message{}
 	if protoimpl.UnsafeEnabled {
-		mi := &file_broker_proto_msgTypes[6]
+		mi := &file_broker_proto_msgTypes[3]
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		ms.StoreMessageInfo(mi)
 	}
@ -341,7 +198,7 @@ func (x *Message) String() string {
 func (*Message) ProtoMessage() {}

 func (x *Message) ProtoReflect() protoreflect.Message {
-	mi := &file_broker_proto_msgTypes[6]
+	mi := &file_broker_proto_msgTypes[3]
 	if protoimpl.UnsafeEnabled && x != nil {
 		ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
 		if ms.LoadMessageInfo() == nil {
@ -354,7 +211,7 @@ func (x *Message) ProtoReflect() protoreflect.Message {

 // Deprecated: Use Message.ProtoReflect.Descriptor instead.
 func (*Message) Descriptor() ([]byte, []int) {
-	return file_broker_proto_rawDescGZIP(), []int{6}
+	return file_broker_proto_rawDescGZIP(), []int{3}
 }

 func (x *Message) GetHeader() map[string]string {
@ -374,63 +231,39 @@ func (x *Message) GetBody() []byte {
 var File_broker_proto protoreflect.FileDescriptor

 var file_broker_proto_rawDesc = []byte{
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+	0x74, 0x6f, 0x33,
 }

 var (
@ -445,34 +278,26 @@ func file_broker_proto_rawDescGZIP() []byte {
 	return file_broker_proto_rawDescData
 }

-var file_broker_proto_msgTypes = make([]protoimpl.MessageInfo, 8)
+var file_broker_proto_msgTypes = make([]protoimpl.MessageInfo, 5)
 var file_broker_proto_goTypes = []interface{}{
-	(*PublishRequest)(nil),        // 0: servicepb.PublishRequest
-	(*BatchPublishRequest)(nil),   // 1: servicepb.BatchPublishRequest
-	(*PublishResponse)(nil),       // 2: servicepb.PublishResponse
-	(*BatchPublishResponse)(nil),  // 3: servicepb.BatchPublishResponse
-	(*SubscribeRequest)(nil),      // 4: servicepb.SubscribeRequest
-	(*BatchSubscribeRequest)(nil), // 5: servicepb.BatchSubscribeRequest
-	(*Message)(nil),               // 6: servicepb.Message
-	nil,                           // 7: servicepb.Message.HeaderEntry
+	(*Empty)(nil),            // 0: service.Empty
+	(*PublishRequest)(nil),   // 1: service.PublishRequest
+	(*SubscribeRequest)(nil), // 2: service.SubscribeRequest
+	(*Message)(nil),          // 3: service.Message
+	nil,                      // 4: service.Message.HeaderEntry
 }
 var file_broker_proto_depIdxs = []int32{
-	6, // 0: servicepb.PublishRequest.message:type_name -> servicepb.Message
-	6, // 1: servicepb.BatchPublishRequest.message:type_name -> servicepb.Message
-	7, // 2: servicepb.Message.header:type_name -> servicepb.Message.HeaderEntry
-	0, // 3: servicepb.BrokerService.Publish:input_type -> servicepb.PublishRequest
-	1, // 4: servicepb.BrokerService.BatchPublish:input_type -> servicepb.BatchPublishRequest
-	4, // 5: servicepb.BrokerService.Subscribe:input_type -> servicepb.SubscribeRequest
-	5, // 6: servicepb.BrokerService.BatchSubscribe:input_type -> servicepb.BatchSubscribeRequest
-	2, // 7: servicepb.BrokerService.Publish:output_type -> servicepb.PublishResponse
-	3, // 8: servicepb.BrokerService.BatchPublish:output_type -> servicepb.BatchPublishResponse
-	6, // 9: servicepb.BrokerService.Subscribe:output_type -> servicepb.Message
-	6, // 10: servicepb.BrokerService.BatchSubscribe:output_type -> servicepb.Message
-	7, // [7:11] is the sub-list for method output_type
-	3, // [3:7] is the sub-list for method input_type
-	3, // [3:3] is the sub-list for extension type_name
-	3, // [3:3] is the sub-list for extension extendee
-	0, // [0:3] is the sub-list for field type_name
+	3, // 0: service.PublishRequest.message:type_name -> service.Message
+	4, // 1: service.Message.header:type_name -> service.Message.HeaderEntry
+	1, // 2: service.Broker.Publish:input_type -> service.PublishRequest
+	2, // 3: service.Broker.Subscribe:input_type -> service.SubscribeRequest
+	0, // 4: service.Broker.Publish:output_type -> service.Empty
+	3, // 5: service.Broker.Subscribe:output_type -> service.Message
+	4, // [4:6] is the sub-list for method output_type
+	2, // [2:4] is the sub-list for method input_type
+	2, // [2:2] is the sub-list for extension type_name
+	2, // [2:2] is the sub-list for extension extendee
+	0, // [0:2] is the sub-list for field type_name
 }

 func init() { file_broker_proto_init() }
@ -482,7 +307,7 @@ func file_broker_proto_init() {
 	}
 	if !protoimpl.UnsafeEnabled {
 		file_broker_proto_msgTypes[0].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*PublishRequest); i {
+			switch v := v.(*Empty); i {
 			case 0:
 				return &v.state
 			case 1:
@ -494,7 +319,7 @@ func file_broker_proto_init() {
 			}
 		}
 		file_broker_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*BatchPublishRequest); i {
+			switch v := v.(*PublishRequest); i {
 			case 0:
 				return &v.state
 			case 1:
@ -506,30 +331,6 @@ func file_broker_proto_init() {
 			}
 		}
 		file_broker_proto_msgTypes[2].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*PublishResponse); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_broker_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*BatchPublishResponse); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_broker_proto_msgTypes[4].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*SubscribeRequest); i {
 			case 0:
 				return &v.state
@ -541,19 +342,7 @@ func file_broker_proto_init() {
 				return nil
 			}
 		}
-		file_broker_proto_msgTypes[5].Exporter = func(v interface{}, i int) interface{} {
-			switch v := v.(*BatchSubscribeRequest); i {
-			case 0:
-				return &v.state
-			case 1:
-				return &v.sizeCache
-			case 2:
-				return &v.unknownFields
-			default:
-				return nil
-			}
-		}
-		file_broker_proto_msgTypes[6].Exporter = func(v interface{}, i int) interface{} {
+		file_broker_proto_msgTypes[3].Exporter = func(v interface{}, i int) interface{} {
 			switch v := v.(*Message); i {
 			case 0:
 				return &v.state
@ -572,7 +361,7 @@ func file_broker_proto_init() {
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_broker_proto_rawDesc,
 			NumEnums:      0,
-			NumMessages:   8,
+			NumMessages:   5,
 			NumExtensions: 0,
 			NumServices:   1,
 		},
--- a/proto/broker.proto
+++ b/proto/broker.proto
@ -1,44 +1,26 @@
 syntax = "proto3";

-package servicepb;
-option go_package="go.unistack.org/micro-broker-service/v3/proto;servicepb";
+package service;
+option go_package="github.com/unistack-org/micro-broker-service;service";

-service BrokerService {
-	rpc Publish(PublishRequest) returns (PublishResponse) {};
-	rpc BatchPublish(BatchPublishRequest) returns (BatchPublishResponse) {};
+service Broker {
+	rpc Publish(PublishRequest) returns (Empty) {};
 	rpc Subscribe(SubscribeRequest) returns (stream Message) {};
-	rpc BatchSubscribe(BatchSubscribeRequest) returns (stream Message) {};
-};
+}
+
+message Empty {}

 message PublishRequest {
 	string topic = 1;
 	Message message = 2;
-};
-
-message BatchPublishRequest {
-	string topic = 1;
-	repeated Message message = 2;
-};
-
-message PublishResponse {
-
-};
-
-message BatchPublishResponse {
-
-};
+}

 message SubscribeRequest {
 	string topic = 1;
 	string group = 2;
-};
-
-message BatchSubscribeRequest {
-	string topic = 1;
-	string group = 2;
-};
+}

 message Message {
 	map<string,string> header = 1;
 	bytes body = 2;
-};
+}
--- a/proto/broker_grpc.pb.go
+++ b/proto/broker_grpc.pb.go
@ -1,6 +1,6 @@
 // Code generated by protoc-gen-go-grpc. DO NOT EDIT.

-package servicepb
+package service

 import (
 	context "context"
@ -11,51 +11,39 @@ import (

 // 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 _ = grpc.SupportPackageIsVersion6

-// BrokerServiceClient is the client API for BrokerService service.
+// BrokerClient is the client API for Broker 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 BrokerServiceClient interface {
-	Publish(ctx context.Context, in *PublishRequest, opts ...grpc.CallOption) (*PublishResponse, error)
-	BatchPublish(ctx context.Context, in *BatchPublishRequest, opts ...grpc.CallOption) (*BatchPublishResponse, error)
-	Subscribe(ctx context.Context, in *SubscribeRequest, opts ...grpc.CallOption) (BrokerService_SubscribeClient, error)
-	BatchSubscribe(ctx context.Context, in *BatchSubscribeRequest, opts ...grpc.CallOption) (BrokerService_BatchSubscribeClient, error)
+type BrokerClient interface {
+	Publish(ctx context.Context, in *PublishRequest, opts ...grpc.CallOption) (*Empty, error)
+	Subscribe(ctx context.Context, in *SubscribeRequest, opts ...grpc.CallOption) (Broker_SubscribeClient, error)
 }

-type brokerServiceClient struct {
+type brokerClient struct {
 	cc grpc.ClientConnInterface
 }

-func NewBrokerServiceClient(cc grpc.ClientConnInterface) BrokerServiceClient {
-	return &brokerServiceClient{cc}
+func NewBrokerClient(cc grpc.ClientConnInterface) BrokerClient {
+	return &brokerClient{cc}
 }

-func (c *brokerServiceClient) Publish(ctx context.Context, in *PublishRequest, opts ...grpc.CallOption) (*PublishResponse, error) {
-	out := new(PublishResponse)
-	err := c.cc.Invoke(ctx, "/servicepb.BrokerService/Publish", in, out, opts...)
+func (c *brokerClient) Publish(ctx context.Context, in *PublishRequest, opts ...grpc.CallOption) (*Empty, error) {
+	out := new(Empty)
+	err := c.cc.Invoke(ctx, "/service.Broker/Publish", in, out, opts...)
 	if err != nil {
 		return nil, err
 	}
 	return out, nil
 }

-func (c *brokerServiceClient) BatchPublish(ctx context.Context, in *BatchPublishRequest, opts ...grpc.CallOption) (*BatchPublishResponse, error) {
-	out := new(BatchPublishResponse)
-	err := c.cc.Invoke(ctx, "/servicepb.BrokerService/BatchPublish", in, out, opts...)
+func (c *brokerClient) Subscribe(ctx context.Context, in *SubscribeRequest, opts ...grpc.CallOption) (Broker_SubscribeClient, error) {
+	stream, err := c.cc.NewStream(ctx, &_Broker_serviceDesc.Streams[0], "/service.Broker/Subscribe", opts...)
 	if err != nil {
 		return nil, err
 	}
-	return out, nil
-}
-
-func (c *brokerServiceClient) Subscribe(ctx context.Context, in *SubscribeRequest, opts ...grpc.CallOption) (BrokerService_SubscribeClient, error) {
-	stream, err := c.cc.NewStream(ctx, &BrokerService_ServiceDesc.Streams[0], "/servicepb.BrokerService/Subscribe", opts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &brokerServiceSubscribeClient{stream}
+	x := &brokerSubscribeClient{stream}
 	if err := x.ClientStream.SendMsg(in); err != nil {
 		return nil, err
 	}
@ -65,16 +53,16 @@ func (c *brokerServiceClient) Subscribe(ctx context.Context, in *SubscribeReques
 	return x, nil
 }

-type BrokerService_SubscribeClient interface {
+type Broker_SubscribeClient interface {
 	Recv() (*Message, error)
 	grpc.ClientStream
 }

-type brokerServiceSubscribeClient struct {
+type brokerSubscribeClient struct {
 	grpc.ClientStream
 }

-func (x *brokerServiceSubscribeClient) Recv() (*Message, error) {
+func (x *brokerSubscribeClient) Recv() (*Message, error) {
 	m := new(Message)
 	if err := x.ClientStream.RecvMsg(m); err != nil {
 		return nil, err
@ -82,181 +70,83 @@ func (x *brokerServiceSubscribeClient) Recv() (*Message, error) {
 	return m, nil
 }

-func (c *brokerServiceClient) BatchSubscribe(ctx context.Context, in *BatchSubscribeRequest, opts ...grpc.CallOption) (BrokerService_BatchSubscribeClient, error) {
-	stream, err := c.cc.NewStream(ctx, &BrokerService_ServiceDesc.Streams[1], "/servicepb.BrokerService/BatchSubscribe", opts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &brokerServiceBatchSubscribeClient{stream}
-	if err := x.ClientStream.SendMsg(in); err != nil {
-		return nil, err
-	}
-	if err := x.ClientStream.CloseSend(); err != nil {
-		return nil, err
-	}
-	return x, nil
-}
-
-type BrokerService_BatchSubscribeClient interface {
-	Recv() (*Message, error)
-	grpc.ClientStream
-}
-
-type brokerServiceBatchSubscribeClient struct {
-	grpc.ClientStream
-}
-
-func (x *brokerServiceBatchSubscribeClient) Recv() (*Message, error) {
-	m := new(Message)
-	if err := x.ClientStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-// BrokerServiceServer is the server API for BrokerService service.
-// All implementations must embed UnimplementedBrokerServiceServer
+// BrokerServer is the server API for Broker service.
+// All implementations must embed UnimplementedBrokerServer
 // for forward compatibility
-type BrokerServiceServer interface {
-	Publish(context.Context, *PublishRequest) (*PublishResponse, error)
-	BatchPublish(context.Context, *BatchPublishRequest) (*BatchPublishResponse, error)
-	Subscribe(*SubscribeRequest, BrokerService_SubscribeServer) error
-	BatchSubscribe(*BatchSubscribeRequest, BrokerService_BatchSubscribeServer) error
-	mustEmbedUnimplementedBrokerServiceServer()
+type BrokerServer interface {
+	Publish(context.Context, *PublishRequest) (*Empty, error)
+	Subscribe(*SubscribeRequest, Broker_SubscribeServer) error
+	mustEmbedUnimplementedBrokerServer()
 }

-// UnimplementedBrokerServiceServer must be embedded to have forward compatible implementations.
-type UnimplementedBrokerServiceServer struct {
+// UnimplementedBrokerServer must be embedded to have forward compatible implementations.
+type UnimplementedBrokerServer struct {
 }

-func (UnimplementedBrokerServiceServer) Publish(context.Context, *PublishRequest) (*PublishResponse, error) {
+func (*UnimplementedBrokerServer) Publish(context.Context, *PublishRequest) (*Empty, error) {
 	return nil, status.Errorf(codes.Unimplemented, "method Publish not implemented")
 }
-func (UnimplementedBrokerServiceServer) BatchPublish(context.Context, *BatchPublishRequest) (*BatchPublishResponse, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method BatchPublish not implemented")
-}
-func (UnimplementedBrokerServiceServer) Subscribe(*SubscribeRequest, BrokerService_SubscribeServer) error {
+func (*UnimplementedBrokerServer) Subscribe(*SubscribeRequest, Broker_SubscribeServer) error {
 	return status.Errorf(codes.Unimplemented, "method Subscribe not implemented")
 }
-func (UnimplementedBrokerServiceServer) BatchSubscribe(*BatchSubscribeRequest, BrokerService_BatchSubscribeServer) error {
-	return status.Errorf(codes.Unimplemented, "method BatchSubscribe not implemented")
-}
-func (UnimplementedBrokerServiceServer) mustEmbedUnimplementedBrokerServiceServer() {}
+func (*UnimplementedBrokerServer) mustEmbedUnimplementedBrokerServer() {}

-// UnsafeBrokerServiceServer may be embedded to opt out of forward compatibility for this service.
-// Use of this interface is not recommended, as added methods to BrokerServiceServer will
-// result in compilation errors.
-type UnsafeBrokerServiceServer interface {
-	mustEmbedUnimplementedBrokerServiceServer()
+func RegisterBrokerServer(s *grpc.Server, srv BrokerServer) {
+	s.RegisterService(&_Broker_serviceDesc, srv)
 }

-func RegisterBrokerServiceServer(s grpc.ServiceRegistrar, srv BrokerServiceServer) {
-	s.RegisterService(&BrokerService_ServiceDesc, srv)
-}
-
-func _BrokerService_Publish_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
+func _Broker_Publish_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
 	in := new(PublishRequest)
 	if err := dec(in); err != nil {
 		return nil, err
 	}
 	if interceptor == nil {
-		return srv.(BrokerServiceServer).Publish(ctx, in)
+		return srv.(BrokerServer).Publish(ctx, in)
 	}
 	info := &grpc.UnaryServerInfo{
 		Server:     srv,
-		FullMethod: "/servicepb.BrokerService/Publish",
+		FullMethod: "/service.Broker/Publish",
 	}
 	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(BrokerServiceServer).Publish(ctx, req.(*PublishRequest))
+		return srv.(BrokerServer).Publish(ctx, req.(*PublishRequest))
 	}
 	return interceptor(ctx, in, info, handler)
 }

-func _BrokerService_BatchPublish_Handler(srv interface{}, ctx context.Context, dec func(interface{}) error, interceptor grpc.UnaryServerInterceptor) (interface{}, error) {
-	in := new(BatchPublishRequest)
-	if err := dec(in); err != nil {
-		return nil, err
-	}
-	if interceptor == nil {
-		return srv.(BrokerServiceServer).BatchPublish(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/servicepb.BrokerService/BatchPublish",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(BrokerServiceServer).BatchPublish(ctx, req.(*BatchPublishRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _BrokerService_Subscribe_Handler(srv interface{}, stream grpc.ServerStream) error {
+func _Broker_Subscribe_Handler(srv interface{}, stream grpc.ServerStream) error {
 	m := new(SubscribeRequest)
 	if err := stream.RecvMsg(m); err != nil {
 		return err
 	}
-	return srv.(BrokerServiceServer).Subscribe(m, &brokerServiceSubscribeServer{stream})
+	return srv.(BrokerServer).Subscribe(m, &brokerSubscribeServer{stream})
 }

-type BrokerService_SubscribeServer interface {
+type Broker_SubscribeServer interface {
 	Send(*Message) error
 	grpc.ServerStream
 }

-type brokerServiceSubscribeServer struct {
+type brokerSubscribeServer struct {
 	grpc.ServerStream
 }

-func (x *brokerServiceSubscribeServer) Send(m *Message) error {
+func (x *brokerSubscribeServer) Send(m *Message) error {
 	return x.ServerStream.SendMsg(m)
 }

-func _BrokerService_BatchSubscribe_Handler(srv interface{}, stream grpc.ServerStream) error {
-	m := new(BatchSubscribeRequest)
-	if err := stream.RecvMsg(m); err != nil {
-		return err
-	}
-	return srv.(BrokerServiceServer).BatchSubscribe(m, &brokerServiceBatchSubscribeServer{stream})
-}
-
-type BrokerService_BatchSubscribeServer interface {
-	Send(*Message) error
-	grpc.ServerStream
-}
-
-type brokerServiceBatchSubscribeServer struct {
-	grpc.ServerStream
-}
-
-func (x *brokerServiceBatchSubscribeServer) Send(m *Message) error {
-	return x.ServerStream.SendMsg(m)
-}
-
-// BrokerService_ServiceDesc is the grpc.ServiceDesc for BrokerService service.
-// It's only intended for direct use with grpc.RegisterService,
-// and not to be introspected or modified (even as a copy)
-var BrokerService_ServiceDesc = grpc.ServiceDesc{
-	ServiceName: "servicepb.BrokerService",
-	HandlerType: (*BrokerServiceServer)(nil),
+var _Broker_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "service.Broker",
+	HandlerType: (*BrokerServer)(nil),
 	Methods: []grpc.MethodDesc{
 		{
 			MethodName: "Publish",
-			Handler:    _BrokerService_Publish_Handler,
-		},
-		{
-			MethodName: "BatchPublish",
-			Handler:    _BrokerService_BatchPublish_Handler,
+			Handler:    _Broker_Publish_Handler,
 		},
 	},
 	Streams: []grpc.StreamDesc{
 		{
 			StreamName:    "Subscribe",
-			Handler:       _BrokerService_Subscribe_Handler,
-			ServerStreams: true,
-		},
-		{
-			StreamName:    "BatchSubscribe",
-			Handler:       _BrokerService_BatchSubscribe_Handler,
+			Handler:       _Broker_Subscribe_Handler,
 			ServerStreams: true,
 		},
 	},
--- a/proto/broker_micro.pb.go
+++ b/proto/broker_micro.pb.go
@ -0,0 +1,63 @@
+// Code generated by protoc-gen-micro
+// source: broker.proto
+package service
+
+import (
+	"context"
+
+	micro_api "github.com/unistack-org/micro/v3/api"
+	micro_client "github.com/unistack-org/micro/v3/client"
+	micro_server "github.com/unistack-org/micro/v3/server"
+)
+
+// NewBrokerEndpoints provides api endpoints metdata for Broker service
+func NewBrokerEndpoints() []*micro_api.Endpoint {
+	var endpoints []*micro_api.Endpoint
+	return endpoints
+}
+
+// BrokerService interface
+type BrokerService interface {
+	Publish(context.Context, *PublishRequest, ...micro_client.CallOption) (*Empty, error)
+	Subscribe(context.Context, *SubscribeRequest, ...micro_client.CallOption) (Broker_SubscribeService, error)
+}
+
+type Broker_SubscribeService interface {
+	Context() context.Context
+	SendMsg(interface{}) error
+	RecvMsg(interface{}) error
+	Close() error
+	Recv() (*Message, error)
+}
+
+// Micro server stuff
+
+// BrokerHandler server handler
+type BrokerHandler interface {
+	Publish(context.Context, *PublishRequest, *Empty) error
+	Subscribe(context.Context, *SubscribeRequest, Broker_SubscribeStream) error
+}
+
+// RegisterBrokerHandler registers server handler
+func RegisterBrokerHandler(s micro_server.Server, sh BrokerHandler, opts ...micro_server.HandlerOption) error {
+	type broker interface {
+		Publish(context.Context, *PublishRequest, *Empty) error
+		Subscribe(context.Context, micro_server.Stream) error
+	}
+	type Broker struct {
+		broker
+	}
+	h := &brokerHandler{sh}
+	for _, endpoint := range NewBrokerEndpoints() {
+		opts = append(opts, micro_api.WithEndpoint(endpoint))
+	}
+	return s.Handle(s.NewHandler(&Broker{h}, opts...))
+}
+
+type Broker_SubscribeStream interface {
+	Context() context.Context
+	SendMsg(interface{}) error
+	RecvMsg(interface{}) error
+	Close() error
+	Send(*Message) error
+}
--- a/proto/broker_micro_grpc.pb.go
+++ b/proto/broker_micro_grpc.pb.go
@ -0,0 +1,114 @@
+// Code generated by protoc-gen-micro
+// source: broker.proto
+package service
+
+import (
+	"context"
+
+	micro_client "github.com/unistack-org/micro/v3/client"
+	micro_server "github.com/unistack-org/micro/v3/server"
+)
+
+var (
+	_ micro_server.Option
+	_ micro_client.Option
+)
+
+type brokerService struct {
+	c    micro_client.Client
+	name string
+}
+
+// Micro client stuff
+
+// NewBrokerService create new service client
+func NewBrokerService(name string, c micro_client.Client) BrokerService {
+	return &brokerService{c: c, name: name}
+}
+
+func (c *brokerService) Publish(ctx context.Context, req *PublishRequest, opts ...micro_client.CallOption) (*Empty, error) {
+	rsp := &Empty{}
+	err := c.c.Call(ctx, c.c.NewRequest(c.name, "Broker.Publish", req), rsp, opts...)
+	if err != nil {
+		return nil, err
+	}
+	return rsp, nil
+}
+
+func (c *brokerService) Subscribe(ctx context.Context, req *SubscribeRequest, opts ...micro_client.CallOption) (Broker_SubscribeService, error) {
+	stream, err := c.c.Stream(ctx, c.c.NewRequest(c.name, "Broker.Subscribe", &SubscribeRequest{}), opts...)
+	if err != nil {
+		return nil, err
+	}
+	if err := stream.Send(req); err != nil {
+		return nil, err
+	}
+	return &brokerServiceSubscribe{stream}, nil
+}
+
+type brokerServiceSubscribe struct {
+	stream micro_client.Stream
+}
+
+func (x *brokerServiceSubscribe) Close() error {
+	return x.stream.Close()
+}
+
+func (x *brokerServiceSubscribe) Context() context.Context {
+	return x.stream.Context()
+}
+
+func (x *brokerServiceSubscribe) SendMsg(m interface{}) error {
+	return x.stream.Send(m)
+}
+
+func (x *brokerServiceSubscribe) RecvMsg(m interface{}) error {
+	return x.stream.Recv(m)
+}
+
+func (x *brokerServiceSubscribe) Recv() (*Message, error) {
+	m := &Message{}
+	if err := x.stream.Recv(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+} // Micro server stuff
+
+type brokerHandler struct {
+	BrokerHandler
+}
+
+func (h *brokerHandler) Publish(ctx context.Context, req *PublishRequest, rsp *Empty) error {
+	return h.BrokerHandler.Publish(ctx, req, rsp)
+}
+
+func (h *brokerHandler) Subscribe(ctx context.Context, stream micro_server.Stream) error {
+	m := &SubscribeRequest{}
+	if err := stream.Recv(m); err != nil {
+		return err
+	}
+	return h.BrokerHandler.Subscribe(ctx, m, &brokerSubscribeStream{stream})
+}
+
+type brokerSubscribeStream struct {
+	stream micro_server.Stream
+}
+
+func (x *brokerSubscribeStream) Close() error {
+	return x.stream.Close()
+}
+
+func (x *brokerSubscribeStream) Context() context.Context {
+	return x.stream.Context()
+}
+
+func (x *brokerSubscribeStream) SendMsg(m interface{}) error {
+	return x.stream.Send(m)
+}
+
+func (x *brokerSubscribeStream) RecvMsg(m interface{}) error {
+	return x.stream.Recv(m)
+}
+func (x *brokerSubscribeStream) Send(m *Message) error {
+	return x.stream.Send(m)
+}
--- a/service.go
+++ b/service.go
@ -1,24 +1,21 @@
 // Package service provides the broker service client
-package service // import "go.unistack.org/micro-broker-service/v3"
+package service

 import (
 	"context"
 	"fmt"
 	"time"

-	pbmicro "go.unistack.org/micro-broker-service/v3/micro"
-	pb "go.unistack.org/micro-broker-service/v3/proto"
-	"go.unistack.org/micro/v3/broker"
-	"go.unistack.org/micro/v3/client"
-	"go.unistack.org/micro/v3/logger"
-	"go.unistack.org/micro/v3/metadata"
+	pb "github.com/unistack-org/micro-broker-service/v3/proto"
+	"github.com/unistack-org/micro/v3/broker"
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/logger"
 )

 type serviceBroker struct {
 	addrs   []string
 	service string
-	client  pbmicro.BrokerServiceClient
-	init    bool
+	client  pb.BrokerService
 	opts    broker.Options
 }

@ -35,10 +32,6 @@ func (b *serviceBroker) Disconnect(ctx context.Context) error {
 }

 func (b *serviceBroker) Init(opts ...broker.Option) error {
-	if len(opts) == 0 && b.init {
-		return nil
-	}
-
 	for _, o := range opts {
 		o(&b.opts)
 	}
@ -53,19 +46,6 @@ func (b *serviceBroker) Init(opts ...broker.Option) error {
 		}
 	}

-	if err := b.opts.Register.Init(); err != nil {
-		return err
-	}
-	if err := b.opts.Tracer.Init(); err != nil {
-		return err
-	}
-	if err := b.opts.Logger.Init(); err != nil {
-		return err
-	}
-	if err := b.opts.Meter.Init(); err != nil {
-		return err
-	}
-
 	if b.service == "" {
 		return fmt.Errorf("missing Service option")
 	}
@ -74,9 +54,8 @@ func (b *serviceBroker) Init(opts ...broker.Option) error {
 		return fmt.Errorf("missing Client option")
 	}

-	b.client = pbmicro.NewBrokerServiceClient(b.service, cli)
+	b.client = pb.NewBrokerService(b.service, cli)

-	b.init = true
 	return nil
 }

@ -84,38 +63,18 @@ func (b *serviceBroker) Options() broker.Options {
 	return b.opts
 }

-func (b *serviceBroker) BatchPublish(ctx context.Context, msgs []*broker.Message, opts ...broker.PublishOption) error {
-	return b.publish(ctx, msgs, opts...)
-}
-
 func (b *serviceBroker) Publish(ctx context.Context, topic string, msg *broker.Message, opts ...broker.PublishOption) error {
-	msg.Header.Set(metadata.HeaderTopic, topic)
-	return b.publish(ctx, []*broker.Message{msg}, opts...)
-}
-
-func (b *serviceBroker) publish(ctx context.Context, msgs []*broker.Message, opts ...broker.PublishOption) error {
-	for _, msg := range msgs {
-		topic, _ := msg.Header.Get(metadata.HeaderTopic)
-		if logger.V(logger.TraceLevel) {
-			logger.Tracef(ctx, "Publishing to topic %s broker %v", topic, b.addrs)
-		}
-		_, err := b.client.Publish(ctx, &pb.PublishRequest{
-			Topic: topic,
-			Message: &pb.Message{
-				Header: msg.Header,
-				Body:   msg.Body,
-			},
-		}, client.WithAddress(b.addrs...))
-		if err != nil {
-			return err
-		}
+	if logger.V(logger.TraceLevel) {
+		logger.Tracef(ctx, "Publishing to topic %s broker %v", topic, b.addrs)
 	}
-
-	return nil
-}
-
-func (b *serviceBroker) BatchSubscribe(ctx context.Context, topic string, handler broker.BatchHandler, opts ...broker.SubscribeOption) (broker.Subscriber, error) {
-	return nil, nil
+	_, err := b.client.Publish(ctx, &pb.PublishRequest{
+		Topic: topic,
+		Message: &pb.Message{
+			Header: msg.Header,
+			Body:   msg.Body,
+		},
+	}, client.WithAddress(b.addrs...))
+	return err
 }

 func (b *serviceBroker) Subscribe(ctx context.Context, topic string, handler broker.Handler, opts ...broker.SubscribeOption) (broker.Subscriber, error) {
--- a/subscriber.go
+++ b/subscriber.go
@ -3,16 +3,16 @@ package service
 import (
 	"context"

-	pbmicro "go.unistack.org/micro-broker-service/v3/micro"
-	"go.unistack.org/micro/v3/broker"
-	"go.unistack.org/micro/v3/logger"
+	pb "github.com/unistack-org/micro-broker-service/v3/proto"
+	"github.com/unistack-org/micro/v3/broker"
+	"github.com/unistack-org/micro/v3/logger"
 )

 type serviceSub struct {
 	topic   string
 	group   string
 	handler broker.Handler
-	stream  pbmicro.BrokerService_SubscribeClient
+	stream  pb.Broker_SubscribeService
 	closed  chan bool
 	options broker.SubscribeOptions
 }
@ -39,10 +39,6 @@ func (s *serviceEvent) Error() error {
 	return s.err
 }

-func (s *serviceEvent) SetError(err error) {
-	s.err = err
-}
-
 func (s *serviceSub) isClosed() bool {
 	select {
 	case <-s.closed: