v3 refactor (#1868)

* Move to v3

Co-authored-by: Ben Toogood <bentoogood@gmail.com>

.github/workflows/micro-examples.yml

@@ -1,37 +0,0 @@
-name: Build all github.com/micro/examples
-on:
-  pull_request:
-    branches:
-      - master
-
-jobs:
-
-  build:
-    name: Build repos
-    runs-on: ubuntu-latest
-    steps:
-
-    - name: Set up Go 1.13
-      uses: actions/setup-go@v1
-      with:
-        go-version: 1.13
-      id: go
-    
-    - name: Install Protoc
-      uses: arduino/setup-protoc@master
-
-    - name: Check out this code
-      uses: actions/checkout@v2
-      with:
-        path: 'go-micro'
-
-    - name: Check out code examples
-      uses: actions/checkout@v2
-      with:
-        repository: 'micro/examples'
-        path: 'examples'
-
-    - name: Build all
-      run: $GITHUB_WORKSPACE/go-micro/.github/workflows/scripts/build-all-examples.sh ${{ github.event.pull_request.head.sha }} ${{ github.event.pull_request.head.repo.full_name }}
-      working-directory: examples
-    

.github/workflows/micro-main.yml

@@ -1,37 +0,0 @@
-name: Build and test micro
-on:
-  pull_request:
-    branches:
-      - master
-
-jobs:
-
-  build:
-    name: Build and test micro
-    runs-on: ubuntu-latest
-    steps:
-
-    - name: Set up Go 1.13
-      uses: actions/setup-go@v2
-      with:
-        go-version: 1.13
-      id: go
-  
-    - name: Install Protoc
-      uses: arduino/setup-protoc@master
-
-    - name: Check out this code
-      uses: actions/checkout@v2
-      with:
-        path: 'go-micro'
-
-    - name: Check out micro
-      uses: actions/checkout@v2
-      with:
-        repository: 'micro/micro'
-        path: 'micro'
-
-    - name: Build all
-      run: $GITHUB_WORKSPACE/go-micro/.github/workflows/scripts/build-micro.sh ${{ github.event.pull_request.head.sha }} ${{ github.event.pull_request.head.repo.full_name }}
-      working-directory: micro
-    

agent/input/discord/conn.go

@@ -6,8 +6,8 @@ import (
 	"sync"
 
 	"github.com/bwmarrin/discordgo"
-	"github.com/micro/go-micro/v2/agent/input"
-	"github.com/micro/go-micro/v2/logger"
+	"github.com/micro/go-micro/v3/agent/input"
+	"github.com/micro/go-micro/v3/logger"
 )
 
 type discordConn struct {

agent/input/discord/discord.go

@@ -9,7 +9,7 @@ import (
 
 	"github.com/bwmarrin/discordgo"
 	"github.com/micro/cli/v2"
-	"github.com/micro/go-micro/v2/agent/input"
+	"github.com/micro/go-micro/v3/agent/input"
 )
 
 func init() {

agent/input/slack/conn.go

@@ -7,7 +7,7 @@ import (
 	"sync"
 	"time"
 
-	"github.com/micro/go-micro/v2/agent/input"
+	"github.com/micro/go-micro/v3/agent/input"
 	"github.com/nlopes/slack"
 )
 

agent/input/slack/slack.go

@@ -5,7 +5,7 @@ import (
 	"sync"
 
 	"github.com/micro/cli/v2"
-	"github.com/micro/go-micro/v2/agent/input"
+	"github.com/micro/go-micro/v3/agent/input"
 	"github.com/nlopes/slack"
 )
 

agent/input/telegram/conn.go

@@ -6,8 +6,8 @@ import (
 	"sync"
 
 	"github.com/forestgiant/sliceutil"
-	"github.com/micro/go-micro/v2/agent/input"
-	"github.com/micro/go-micro/v2/logger"
+	"github.com/micro/go-micro/v3/agent/input"
+	"github.com/micro/go-micro/v3/logger"
 	tgbotapi "gopkg.in/telegram-bot-api.v4"
 )
 

agent/input/telegram/telegram.go

@@ -6,7 +6,7 @@ import (
 	"sync"
 
 	"github.com/micro/cli/v2"
-	"github.com/micro/go-micro/v2/agent/input"
+	"github.com/micro/go-micro/v3/agent/input"
 	tgbotapi "gopkg.in/telegram-bot-api.v4"
 )
 

agent/proto/bot.pb.micro.go

@@ -11,9 +11,9 @@ import (
 
 import (
 	context "context"
-	api "github.com/micro/go-micro/v2/api"
-	client "github.com/micro/go-micro/v2/client"
-	server "github.com/micro/go-micro/v2/server"
+	api "github.com/micro/go-micro/v3/api"
+	client "github.com/micro/go-micro/v3/client"
+	server "github.com/micro/go-micro/v3/server"
 )
 
 // Reference imports to suppress errors if they are not otherwise used.

api/api.go

@@ -5,8 +5,8 @@ import (
 	"regexp"
 	"strings"
 
-	"github.com/micro/go-micro/v2/registry"
-	"github.com/micro/go-micro/v2/server"
+	"github.com/micro/go-micro/v3/registry"
+	"github.com/micro/go-micro/v3/server"
 )
 
 type Api interface {

api/handler/api/api.go

@@ -4,13 +4,13 @@ package api
 import (
 	"net/http"
 
-	goapi "github.com/micro/go-micro/v2/api"
-	"github.com/micro/go-micro/v2/api/handler"
-	"github.com/micro/go-micro/v2/api/handler/util"
-	api "github.com/micro/go-micro/v2/api/proto"
-	"github.com/micro/go-micro/v2/client"
-	"github.com/micro/go-micro/v2/errors"
-	"github.com/micro/go-micro/v2/util/ctx"
+	goapi "github.com/micro/go-micro/v3/api"
+	"github.com/micro/go-micro/v3/api/handler"
+	"github.com/micro/go-micro/v3/api/handler/util"
+	api "github.com/micro/go-micro/v3/api/proto"
+	"github.com/micro/go-micro/v3/client"
+	"github.com/micro/go-micro/v3/errors"
+	"github.com/micro/go-micro/v3/util/ctx"
 )
 
 type apiHandler struct {

api/handler/api/util.go

@@ -7,7 +7,7 @@ import (
 	"net/http"
 	"strings"
 
-	api "github.com/micro/go-micro/v2/api/proto"
+	api "github.com/micro/go-micro/v3/api/proto"
 	"github.com/oxtoacart/bpool"
 )
 

api/handler/event/event.go

@@ -11,9 +11,9 @@ import (
 	"time"
 
 	"github.com/google/uuid"
-	"github.com/micro/go-micro/v2/api/handler"
-	proto "github.com/micro/go-micro/v2/api/proto"
-	"github.com/micro/go-micro/v2/util/ctx"
+	"github.com/micro/go-micro/v3/api/handler"
+	proto "github.com/micro/go-micro/v3/api/proto"
+	"github.com/micro/go-micro/v3/util/ctx"
 	"github.com/oxtoacart/bpool"
 )
 

api/handler/http/http.go

@@ -9,9 +9,9 @@ import (
 	"net/http/httputil"
 	"net/url"
 
-	"github.com/micro/go-micro/v2/api"
-	"github.com/micro/go-micro/v2/api/handler"
-	"github.com/micro/go-micro/v2/registry"
+	"github.com/micro/go-micro/v3/api"
+	"github.com/micro/go-micro/v3/api/handler"
+	"github.com/micro/go-micro/v3/registry"
 )
 
 const (

api/handler/http/http_test.go

@@ -6,13 +6,13 @@ import (
 	"net/http/httptest"
 	"testing"
 
-	"github.com/micro/go-micro/v2/api/handler"
-	"github.com/micro/go-micro/v2/api/resolver"
-	"github.com/micro/go-micro/v2/api/resolver/vpath"
-	"github.com/micro/go-micro/v2/api/router"
-	regRouter "github.com/micro/go-micro/v2/api/router/registry"
-	"github.com/micro/go-micro/v2/registry"
-	"github.com/micro/go-micro/v2/registry/memory"
+	"github.com/micro/go-micro/v3/api/handler"
+	"github.com/micro/go-micro/v3/api/resolver"
+	"github.com/micro/go-micro/v3/api/resolver/vpath"
+	"github.com/micro/go-micro/v3/api/router"
+	regRouter "github.com/micro/go-micro/v3/api/router/registry"
+	"github.com/micro/go-micro/v3/registry"
+	"github.com/micro/go-micro/v3/registry/memory"
 )
 
 func testHttp(t *testing.T, path, service, ns string) {

api/handler/options.go

@@ -1,9 +1,9 @@
 package handler
 
 import (
-	"github.com/micro/go-micro/v2/api/router"
-	"github.com/micro/go-micro/v2/client"
-	"github.com/micro/go-micro/v2/client/grpc"
+	"github.com/micro/go-micro/v3/api/router"
+	"github.com/micro/go-micro/v3/client"
+	"github.com/micro/go-micro/v3/client/grpc"
 )
 
 var (

api/handler/rpc/rpc.go

@@ -9,19 +9,19 @@ import (
 	"strings"
 
 	jsonpatch "github.com/evanphx/json-patch/v5"
-	"github.com/micro/go-micro/v2/api"
-	"github.com/micro/go-micro/v2/api/handler"
-	"github.com/micro/go-micro/v2/api/handler/util"
-	"github.com/micro/go-micro/v2/api/internal/proto"
-	"github.com/micro/go-micro/v2/client"
-	"github.com/micro/go-micro/v2/codec"
-	"github.com/micro/go-micro/v2/codec/jsonrpc"
-	"github.com/micro/go-micro/v2/codec/protorpc"
-	"github.com/micro/go-micro/v2/errors"
-	"github.com/micro/go-micro/v2/logger"
-	"github.com/micro/go-micro/v2/metadata"
-	"github.com/micro/go-micro/v2/util/ctx"
-	"github.com/micro/go-micro/v2/util/qson"
+	"github.com/micro/go-micro/v3/api"
+	"github.com/micro/go-micro/v3/api/handler"
+	"github.com/micro/go-micro/v3/api/handler/util"
+	"github.com/micro/go-micro/v3/api/internal/proto"
+	"github.com/micro/go-micro/v3/client"
+	"github.com/micro/go-micro/v3/codec"
+	"github.com/micro/go-micro/v3/codec/jsonrpc"
+	"github.com/micro/go-micro/v3/codec/protorpc"
+	"github.com/micro/go-micro/v3/errors"
+	"github.com/micro/go-micro/v3/logger"
+	"github.com/micro/go-micro/v3/metadata"
+	"github.com/micro/go-micro/v3/util/ctx"
+	"github.com/micro/go-micro/v3/util/qson"
 	"github.com/oxtoacart/bpool"
 )
 

api/handler/rpc/rpc_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 
 	"github.com/golang/protobuf/proto"
-	go_api "github.com/micro/go-micro/v2/api/proto"
+	go_api "github.com/micro/go-micro/v3/api/proto"
 )
 
 func TestRequestPayloadFromRequest(t *testing.T) {

api/handler/rpc/stream.go

@@ -12,11 +12,11 @@ import (
 	"github.com/gobwas/httphead"
 	"github.com/gobwas/ws"
 	"github.com/gobwas/ws/wsutil"
-	"github.com/micro/go-micro/v2/api"
-	"github.com/micro/go-micro/v2/api/handler/util"
-	"github.com/micro/go-micro/v2/client"
-	raw "github.com/micro/go-micro/v2/codec/bytes"
-	"github.com/micro/go-micro/v2/logger"
+	"github.com/micro/go-micro/v3/api"
+	"github.com/micro/go-micro/v3/api/handler/util"
+	"github.com/micro/go-micro/v3/client"
+	raw "github.com/micro/go-micro/v3/codec/bytes"
+	"github.com/micro/go-micro/v3/logger"
 )
 
 // serveWebsocket will stream rpc back over websockets assuming json

api/handler/util/router.go

@@ -1,8 +1,8 @@
 package util
 
 import (
-	"github.com/micro/go-micro/v2/registry"
-	"github.com/micro/go-micro/v2/router"
+	"github.com/micro/go-micro/v3/registry"
+	"github.com/micro/go-micro/v3/router"
 )
 
 // Router is a hack for API routing

api/handler/web/web.go

@@ -12,9 +12,9 @@ import (
 	"net/url"
 	"strings"
 
-	"github.com/micro/go-micro/v2/api"
-	"github.com/micro/go-micro/v2/api/handler"
-	"github.com/micro/go-micro/v2/registry"
+	"github.com/micro/go-micro/v3/api"
+	"github.com/micro/go-micro/v3/api/handler"
+	"github.com/micro/go-micro/v3/registry"
 )
 
 const (

api/resolver/grpc/grpc.go

@@ -6,7 +6,7 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/micro/go-micro/v2/api/resolver"
+	"github.com/micro/go-micro/v3/api/resolver"
 )
 
 type Resolver struct {

api/resolver/host/host.go

@@ -4,7 +4,7 @@ package host
 import (
 	"net/http"
 
-	"github.com/micro/go-micro/v2/api/resolver"
+	"github.com/micro/go-micro/v3/api/resolver"
 )
 
 type Resolver struct {

api/resolver/options.go

@@ -1,7 +1,7 @@
 package resolver
 
 import (
-	"github.com/micro/go-micro/v2/registry"
+	"github.com/micro/go-micro/v3/registry"
 )
 
 type Options struct {

api/resolver/path/path.go

@@ -5,7 +5,7 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/micro/go-micro/v2/api/resolver"
+	"github.com/micro/go-micro/v3/api/resolver"
 )
 
 type Resolver struct {

api/resolver/subdomain/subdomain.go

@@ -7,8 +7,8 @@ import (
 	"net/http"
 	"strings"
 
-	"github.com/micro/go-micro/v2/api/resolver"
-	"github.com/micro/go-micro/v2/logger"
+	"github.com/micro/go-micro/v3/api/resolver"
+	"github.com/micro/go-micro/v3/logger"
 	"golang.org/x/net/publicsuffix"
 )
 

api/resolver/subdomain/subdomain_test.go

@@ -5,7 +5,7 @@ import (
 	"net/url"
 	"testing"
 
-	"github.com/micro/go-micro/v2/api/resolver/vpath"
+	"github.com/micro/go-micro/v3/api/resolver/vpath"
 
 	"github.com/stretchr/testify/assert"
 )

api/resolver/vpath/vpath.go

@@ -7,7 +7,7 @@ import (
 	"regexp"
 	"strings"
 
-	"github.com/micro/go-micro/v2/api/resolver"
+	"github.com/micro/go-micro/v3/api/resolver"
 )
 
 func NewResolver(opts ...resolver.Option) resolver.Resolver {

api/router/options.go

@@ -1,9 +1,10 @@
 package router
 
 import (
-	"github.com/micro/go-micro/v2/api/resolver"
-	"github.com/micro/go-micro/v2/api/resolver/vpath"
-	"github.com/micro/go-micro/v2/registry"
+	"github.com/micro/go-micro/v3/api/resolver"
+	"github.com/micro/go-micro/v3/api/resolver/vpath"
+	"github.com/micro/go-micro/v3/registry"
+	"github.com/micro/go-micro/v3/registry/mdns"
 )
 
 type Options struct {
@@ -17,7 +18,7 @@ type Option func(o *Options)
 func NewOptions(opts ...Option) Options {
 	options := Options{
 		Handler:  "meta",
-		Registry: registry.DefaultRegistry,
+		Registry: mdns.NewRegistry(),
 	}
 
 	for _, o := range opts {

api/router/registry/registry.go

@@ -10,13 +10,13 @@ import (
 	"sync"
 	"time"
 
-	"github.com/micro/go-micro/v2/api"
-	"github.com/micro/go-micro/v2/api/router"
-	"github.com/micro/go-micro/v2/api/router/util"
-	"github.com/micro/go-micro/v2/logger"
-	"github.com/micro/go-micro/v2/metadata"
-	"github.com/micro/go-micro/v2/registry"
-	"github.com/micro/go-micro/v2/registry/cache"
+	"github.com/micro/go-micro/v3/api"
+	"github.com/micro/go-micro/v3/api/router"
+	"github.com/micro/go-micro/v3/api/router/util"
+	"github.com/micro/go-micro/v3/logger"
+	"github.com/micro/go-micro/v3/metadata"
+	"github.com/micro/go-micro/v3/registry"
+	"github.com/micro/go-micro/v3/registry/cache"
 )
 
 // endpoint struct, that holds compiled pcre

api/router/registry/registry_test.go

@@ -3,7 +3,7 @@ package registry
 import (
 	"testing"
 
-	"github.com/micro/go-micro/v2/registry"
+	"github.com/micro/go-micro/v3/registry"
 	"github.com/stretchr/testify/assert"
 )
 

api/router/router.go

@@ -4,7 +4,7 @@ package router
 import (
 	"net/http"
 
-	"github.com/micro/go-micro/v2/api"
+	"github.com/micro/go-micro/v3/api"
 )
 
 // Router is used to determine an endpoint for a request

api/router/router_test.go

@@ -9,18 +9,18 @@ import (
 	"testing"
 	"time"
 
-	"github.com/micro/go-micro/v2/api"
-	"github.com/micro/go-micro/v2/api/handler"
-	"github.com/micro/go-micro/v2/api/handler/rpc"
-	"github.com/micro/go-micro/v2/api/router"
-	rregistry "github.com/micro/go-micro/v2/api/router/registry"
-	rstatic "github.com/micro/go-micro/v2/api/router/static"
-	"github.com/micro/go-micro/v2/client"
-	gcli "github.com/micro/go-micro/v2/client/grpc"
-	rmemory "github.com/micro/go-micro/v2/registry/memory"
-	"github.com/micro/go-micro/v2/server"
-	gsrv "github.com/micro/go-micro/v2/server/grpc"
-	pb "github.com/micro/go-micro/v2/server/grpc/proto"
+	"github.com/micro/go-micro/v3/api"
+	"github.com/micro/go-micro/v3/api/handler"
+	"github.com/micro/go-micro/v3/api/handler/rpc"
+	"github.com/micro/go-micro/v3/api/router"
+	rregistry "github.com/micro/go-micro/v3/api/router/registry"
+	rstatic "github.com/micro/go-micro/v3/api/router/static"
+	"github.com/micro/go-micro/v3/client"
+	gcli "github.com/micro/go-micro/v3/client/grpc"
+	rmemory "github.com/micro/go-micro/v3/registry/memory"
+	"github.com/micro/go-micro/v3/server"
+	gsrv "github.com/micro/go-micro/v3/server/grpc"
+	pb "github.com/micro/go-micro/v3/server/grpc/proto"
 )
 
 // server is used to implement helloworld.GreeterServer.

api/router/static/static.go

@@ -8,13 +8,13 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/micro/go-micro/v2/api"
-	"github.com/micro/go-micro/v2/api/router"
-	"github.com/micro/go-micro/v2/api/router/util"
-	"github.com/micro/go-micro/v2/logger"
-	"github.com/micro/go-micro/v2/metadata"
-	"github.com/micro/go-micro/v2/registry"
-	rutil "github.com/micro/go-micro/v2/util/registry"
+	"github.com/micro/go-micro/v3/api"
+	"github.com/micro/go-micro/v3/api/router"
+	"github.com/micro/go-micro/v3/api/router/util"
+	"github.com/micro/go-micro/v3/logger"
+	"github.com/micro/go-micro/v3/metadata"
+	"github.com/micro/go-micro/v3/registry"
+	rutil "github.com/micro/go-micro/v3/util/registry"
 )
 
 type endpoint struct {

api/router/util/parse.go

@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/micro/go-micro/v2/logger"
+	"github.com/micro/go-micro/v3/logger"
 )
 
 // InvalidTemplateError indicates that the path template is not valid.

api/router/util/parse_test.go

@@ -8,7 +8,7 @@ import (
 	"reflect"
 	"testing"
 
-	"github.com/micro/go-micro/v2/logger"
+	"github.com/micro/go-micro/v3/logger"
 )
 
 func TestTokenize(t *testing.T) {

api/router/util/runtime.go

@@ -7,7 +7,7 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/micro/go-micro/v2/logger"
+	"github.com/micro/go-micro/v3/logger"
 )
 
 var (

api/server/acme/autocert/autocert.go

@@ -7,8 +7,8 @@ import (
 	"net"
 	"os"
 
-	"github.com/micro/go-micro/v2/api/server/acme"
-	"github.com/micro/go-micro/v2/logger"
+	"github.com/micro/go-micro/v3/api/server/acme"
+	"github.com/micro/go-micro/v3/logger"
 	"golang.org/x/crypto/acme/autocert"
 )
 

api/server/acme/certmagic/certmagic.go

@@ -8,8 +8,8 @@ import (
 	"time"
 
 	"github.com/caddyserver/certmagic"
-	"github.com/micro/go-micro/v2/api/server/acme"
-	"github.com/micro/go-micro/v2/logger"
+	"github.com/micro/go-micro/v3/api/server/acme"
+	"github.com/micro/go-micro/v3/logger"
 )
 
 type certmagicProvider struct {

api/server/acme/certmagic/storage.go

@@ -10,8 +10,8 @@ import (
 	"time"
 
 	"github.com/caddyserver/certmagic"
-	"github.com/micro/go-micro/v2/store"
-	"github.com/micro/go-micro/v2/sync"
+	"github.com/micro/go-micro/v3/store"
+	"github.com/micro/go-micro/v3/sync"
 )
 
 // File represents a "File" that will be stored in store.Store - the contents and last modified time

api/server/http/http.go

@@ -9,9 +9,9 @@ import (
 	"sync"
 
 	"github.com/gorilla/handlers"
-	"github.com/micro/go-micro/v2/api/server"
-	"github.com/micro/go-micro/v2/api/server/cors"
-	"github.com/micro/go-micro/v2/logger"
+	"github.com/micro/go-micro/v3/api/server"
+	"github.com/micro/go-micro/v3/api/server/cors"
+	"github.com/micro/go-micro/v3/logger"
 )
 
 type httpServer struct {

api/server/options.go

@@ -4,8 +4,8 @@ import (
 	"crypto/tls"
 	"net/http"
 
-	"github.com/micro/go-micro/v2/api/resolver"
-	"github.com/micro/go-micro/v2/api/server/acme"
+	"github.com/micro/go-micro/v3/api/resolver"
+	"github.com/micro/go-micro/v3/api/server/acme"
 )
 
 type Option func(o *Options)

api/service/proto/api.pb.micro.go

@@ -11,9 +11,9 @@ import (
 
 import (
 	context "context"
-	api "github.com/micro/go-micro/v2/api"
-	client "github.com/micro/go-micro/v2/client"
-	server "github.com/micro/go-micro/v2/server"
+	api "github.com/micro/go-micro/v3/api"
+	client "github.com/micro/go-micro/v3/client"
+	server "github.com/micro/go-micro/v3/server"
 )
 
 // Reference imports to suppress errors if they are not otherwise used.

auth/default.go

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

auth/jwt/jwt.go

@@ -5,9 +5,9 @@ import (
 	"sync"
 	"time"
 
-	"github.com/micro/go-micro/v2/auth"
-	"github.com/micro/go-micro/v2/util/token"
-	"github.com/micro/go-micro/v2/util/token/jwt"
+	"github.com/micro/go-micro/v3/auth"
+	"github.com/micro/go-micro/v3/util/token"
+	"github.com/micro/go-micro/v3/util/token/jwt"
 )
 
 // NewAuth returns a new instance of the Auth service

auth/noop/noop.go

@@ -0,0 +1,81 @@
+package noop
+
+import (
+	"github.com/google/uuid"
+	"github.com/micro/go-micro/v3/auth"
+)
+
+func NewAuth(opts ...auth.Option) auth.Auth {
+	var options auth.Options
+	for _, o := range opts {
+		o(&options)
+	}
+
+	return &noop{
+		opts: options,
+	}
+}
+
+type noop struct {
+	opts auth.Options
+}
+
+// String returns the name of the implementation
+func (n *noop) String() string {
+	return "noop"
+}
+
+// Init the auth
+func (n *noop) Init(opts ...auth.Option) {
+	for _, o := range opts {
+		o(&n.opts)
+	}
+}
+
+// Options set for auth
+func (n *noop) Options() auth.Options {
+	return n.opts
+}
+
+// Generate a new account
+func (n *noop) Generate(id string, opts ...auth.GenerateOption) (*auth.Account, error) {
+	options := auth.NewGenerateOptions(opts...)
+
+	return &auth.Account{
+		ID:       id,
+		Secret:   options.Secret,
+		Metadata: options.Metadata,
+		Scopes:   options.Scopes,
+		Issuer:   n.Options().Issuer,
+	}, nil
+}
+
+// Grant access to a resource
+func (n *noop) Grant(rule *auth.Rule) error {
+	return nil
+}
+
+// Revoke access to a resource
+func (n *noop) Revoke(rule *auth.Rule) error {
+	return nil
+}
+
+// Rules used to verify requests
+func (n *noop) Rules(opts ...auth.RulesOption) ([]*auth.Rule, error) {
+	return []*auth.Rule{}, nil
+}
+
+// Verify an account has access to a resource
+func (n *noop) Verify(acc *auth.Account, res *auth.Resource, opts ...auth.VerifyOption) error {
+	return nil
+}
+
+// Inspect a token
+func (n *noop) Inspect(token string) (*auth.Account, error) {
+	return &auth.Account{ID: uuid.New().String(), Issuer: n.Options().Issuer}, nil
+}
+
+// Token generation using an account id and secret
+func (n *noop) Token(opts ...auth.TokenOption) (*auth.Token, error) {
+	return &auth.Token{}, nil
+}

auth/options.go

@@ -4,8 +4,7 @@ import (
 	"context"
 	"time"
 
-	"github.com/micro/go-micro/v2/client"
-	"github.com/micro/go-micro/v2/store"
+	"github.com/micro/go-micro/v3/store"
 )
 
 func NewOptions(opts ...Option) Options {
@@ -13,10 +12,6 @@ func NewOptions(opts ...Option) Options {
 	for _, o := range opts {
 		o(&options)
 	}
-	if options.Client == nil {
-		options.Client = client.DefaultClient
-	}
-
 	return options
 }
 
@@ -37,10 +32,10 @@ type Options struct {
 	LoginURL string
 	// Store to back auth
 	Store store.Store
-	// Client to use for RPC
-	Client client.Client
 	// Addrs sets the addresses of auth
 	Addrs []string
+	// Context to store other options
+	Context context.Context
 }
 
 type Option func(o *Options)
@@ -102,13 +97,6 @@ func LoginURL(url string) Option {
 	}
 }
 
-// WithClient sets the client to use when making requests
-func WithClient(c client.Client) Option {
-	return func(o *Options) {
-		o.Client = c
-	}
-}
-
 type GenerateOptions struct {
 	// Metadata associated with the account
 	Metadata map[string]string

auth/service/proto/auth.pb.micro.go

@@ -1,296 +0,0 @@
-// Code generated by protoc-gen-micro. DO NOT EDIT.
-// source: auth/service/proto/auth.proto
-
-package go_micro_auth
-
-import (
-	fmt "fmt"
-	proto "github.com/golang/protobuf/proto"
-	math "math"
-)
-
-import (
-	context "context"
-	api "github.com/micro/go-micro/v2/api"
-	client "github.com/micro/go-micro/v2/client"
-	server "github.com/micro/go-micro/v2/server"
-)
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ api.Endpoint
-var _ context.Context
-var _ client.Option
-var _ server.Option
-
-// Api Endpoints for Auth service
-
-func NewAuthEndpoints() []*api.Endpoint {
-	return []*api.Endpoint{}
-}
-
-// Client API for Auth service
-
-type AuthService interface {
-	Generate(ctx context.Context, in *GenerateRequest, opts ...client.CallOption) (*GenerateResponse, error)
-	Inspect(ctx context.Context, in *InspectRequest, opts ...client.CallOption) (*InspectResponse, error)
-	Token(ctx context.Context, in *TokenRequest, opts ...client.CallOption) (*TokenResponse, error)
-}
-
-type authService struct {
-	c    client.Client
-	name string
-}
-
-func NewAuthService(name string, c client.Client) AuthService {
-	return &authService{
-		c:    c,
-		name: name,
-	}
-}
-
-func (c *authService) Generate(ctx context.Context, in *GenerateRequest, opts ...client.CallOption) (*GenerateResponse, error) {
-	req := c.c.NewRequest(c.name, "Auth.Generate", in)
-	out := new(GenerateResponse)
-	err := c.c.Call(ctx, req, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *authService) Inspect(ctx context.Context, in *InspectRequest, opts ...client.CallOption) (*InspectResponse, error) {
-	req := c.c.NewRequest(c.name, "Auth.Inspect", in)
-	out := new(InspectResponse)
-	err := c.c.Call(ctx, req, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *authService) Token(ctx context.Context, in *TokenRequest, opts ...client.CallOption) (*TokenResponse, error) {
-	req := c.c.NewRequest(c.name, "Auth.Token", in)
-	out := new(TokenResponse)
-	err := c.c.Call(ctx, req, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// Server API for Auth service
-
-type AuthHandler interface {
-	Generate(context.Context, *GenerateRequest, *GenerateResponse) error
-	Inspect(context.Context, *InspectRequest, *InspectResponse) error
-	Token(context.Context, *TokenRequest, *TokenResponse) error
-}
-
-func RegisterAuthHandler(s server.Server, hdlr AuthHandler, opts ...server.HandlerOption) error {
-	type auth interface {
-		Generate(ctx context.Context, in *GenerateRequest, out *GenerateResponse) error
-		Inspect(ctx context.Context, in *InspectRequest, out *InspectResponse) error
-		Token(ctx context.Context, in *TokenRequest, out *TokenResponse) error
-	}
-	type Auth struct {
-		auth
-	}
-	h := &authHandler{hdlr}
-	return s.Handle(s.NewHandler(&Auth{h}, opts...))
-}
-
-type authHandler struct {
-	AuthHandler
-}
-
-func (h *authHandler) Generate(ctx context.Context, in *GenerateRequest, out *GenerateResponse) error {
-	return h.AuthHandler.Generate(ctx, in, out)
-}
-
-func (h *authHandler) Inspect(ctx context.Context, in *InspectRequest, out *InspectResponse) error {
-	return h.AuthHandler.Inspect(ctx, in, out)
-}
-
-func (h *authHandler) Token(ctx context.Context, in *TokenRequest, out *TokenResponse) error {
-	return h.AuthHandler.Token(ctx, in, out)
-}
-
-// Api Endpoints for Accounts service
-
-func NewAccountsEndpoints() []*api.Endpoint {
-	return []*api.Endpoint{}
-}
-
-// Client API for Accounts service
-
-type AccountsService interface {
-	List(ctx context.Context, in *ListAccountsRequest, opts ...client.CallOption) (*ListAccountsResponse, error)
-	Delete(ctx context.Context, in *DeleteAccountRequest, opts ...client.CallOption) (*DeleteAccountResponse, error)
-}
-
-type accountsService struct {
-	c    client.Client
-	name string
-}
-
-func NewAccountsService(name string, c client.Client) AccountsService {
-	return &accountsService{
-		c:    c,
-		name: name,
-	}
-}
-
-func (c *accountsService) List(ctx context.Context, in *ListAccountsRequest, opts ...client.CallOption) (*ListAccountsResponse, error) {
-	req := c.c.NewRequest(c.name, "Accounts.List", in)
-	out := new(ListAccountsResponse)
-	err := c.c.Call(ctx, req, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *accountsService) Delete(ctx context.Context, in *DeleteAccountRequest, opts ...client.CallOption) (*DeleteAccountResponse, error) {
-	req := c.c.NewRequest(c.name, "Accounts.Delete", in)
-	out := new(DeleteAccountResponse)
-	err := c.c.Call(ctx, req, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// Server API for Accounts service
-
-type AccountsHandler interface {
-	List(context.Context, *ListAccountsRequest, *ListAccountsResponse) error
-	Delete(context.Context, *DeleteAccountRequest, *DeleteAccountResponse) error
-}
-
-func RegisterAccountsHandler(s server.Server, hdlr AccountsHandler, opts ...server.HandlerOption) error {
-	type accounts interface {
-		List(ctx context.Context, in *ListAccountsRequest, out *ListAccountsResponse) error
-		Delete(ctx context.Context, in *DeleteAccountRequest, out *DeleteAccountResponse) error
-	}
-	type Accounts struct {
-		accounts
-	}
-	h := &accountsHandler{hdlr}
-	return s.Handle(s.NewHandler(&Accounts{h}, opts...))
-}
-
-type accountsHandler struct {
-	AccountsHandler
-}
-
-func (h *accountsHandler) List(ctx context.Context, in *ListAccountsRequest, out *ListAccountsResponse) error {
-	return h.AccountsHandler.List(ctx, in, out)
-}
-
-func (h *accountsHandler) Delete(ctx context.Context, in *DeleteAccountRequest, out *DeleteAccountResponse) error {
-	return h.AccountsHandler.Delete(ctx, in, out)
-}
-
-// Api Endpoints for Rules service
-
-func NewRulesEndpoints() []*api.Endpoint {
-	return []*api.Endpoint{}
-}
-
-// Client API for Rules service
-
-type RulesService interface {
-	Create(ctx context.Context, in *CreateRequest, opts ...client.CallOption) (*CreateResponse, error)
-	Delete(ctx context.Context, in *DeleteRequest, opts ...client.CallOption) (*DeleteResponse, error)
-	List(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error)
-}
-
-type rulesService struct {
-	c    client.Client
-	name string
-}
-
-func NewRulesService(name string, c client.Client) RulesService {
-	return &rulesService{
-		c:    c,
-		name: name,
-	}
-}
-
-func (c *rulesService) Create(ctx context.Context, in *CreateRequest, opts ...client.CallOption) (*CreateResponse, error) {
-	req := c.c.NewRequest(c.name, "Rules.Create", in)
-	out := new(CreateResponse)
-	err := c.c.Call(ctx, req, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *rulesService) Delete(ctx context.Context, in *DeleteRequest, opts ...client.CallOption) (*DeleteResponse, error) {
-	req := c.c.NewRequest(c.name, "Rules.Delete", in)
-	out := new(DeleteResponse)
-	err := c.c.Call(ctx, req, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *rulesService) List(ctx context.Context, in *ListRequest, opts ...client.CallOption) (*ListResponse, error) {
-	req := c.c.NewRequest(c.name, "Rules.List", in)
-	out := new(ListResponse)
-	err := c.c.Call(ctx, req, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// Server API for Rules service
-
-type RulesHandler interface {
-	Create(context.Context, *CreateRequest, *CreateResponse) error
-	Delete(context.Context, *DeleteRequest, *DeleteResponse) error
-	List(context.Context, *ListRequest, *ListResponse) error
-}
-
-func RegisterRulesHandler(s server.Server, hdlr RulesHandler, opts ...server.HandlerOption) error {
-	type rules interface {
-		Create(ctx context.Context, in *CreateRequest, out *CreateResponse) error
-		Delete(ctx context.Context, in *DeleteRequest, out *DeleteResponse) error
-		List(ctx context.Context, in *ListRequest, out *ListResponse) error
-	}
-	type Rules struct {
-		rules
-	}
-	h := &rulesHandler{hdlr}
-	return s.Handle(s.NewHandler(&Rules{h}, opts...))
-}
-
-type rulesHandler struct {
-	RulesHandler
-}
-
-func (h *rulesHandler) Create(ctx context.Context, in *CreateRequest, out *CreateResponse) error {
-	return h.RulesHandler.Create(ctx, in, out)
-}
-
-func (h *rulesHandler) Delete(ctx context.Context, in *DeleteRequest, out *DeleteResponse) error {
-	return h.RulesHandler.Delete(ctx, in, out)
-}
-
-func (h *rulesHandler) List(ctx context.Context, in *ListRequest, out *ListResponse) error {
-	return h.RulesHandler.List(ctx, in, out)
-}

auth/service/proto/auth.proto

@@ -1,148 +0,0 @@
-syntax = "proto3";
-
-package go.micro.auth;
-
-service Auth {
-	rpc Generate(GenerateRequest) returns (GenerateResponse) {};
-	rpc Inspect(InspectRequest) returns (InspectResponse) {};		
-	rpc Token(TokenRequest) returns (TokenResponse) {};
-}
-
-service Accounts {
-	rpc List(ListAccountsRequest) returns (ListAccountsResponse) {};
-	rpc Delete(DeleteAccountRequest) returns (DeleteAccountResponse) {};
-}
-
-service Rules {
-	rpc Create(CreateRequest) returns (CreateResponse) {};
-	rpc Delete(DeleteRequest) returns (DeleteResponse) {};
-	rpc List(ListRequest) returns (ListResponse) {};
-}
-
-message ListAccountsRequest {
-	Options options = 1;
-}
-
-message ListAccountsResponse {
-	repeated Account accounts = 1;
-}
-
-message DeleteAccountRequest {
-	string id = 1;
-	Options options = 2;
-}
-
-message DeleteAccountResponse {}
-
-message Token {
-	string access_token = 1;
-	string refresh_token = 2;
-	int64 created = 3;
-	int64 expiry = 4;
-}
-
-message Account {
-	string id = 1;
-	string type = 2;
-	map<string, string> metadata = 4;
-	repeated string scopes = 5;
-	string issuer = 6;
-	string secret = 7;
-}
-
-message Resource{
-	string name = 1;
-	string type = 2;
-	string endpoint = 3;
-}
-
-message GenerateRequest {
-	string id = 1;
-	map<string, string> metadata = 3;
-	repeated string scopes = 4;
-	string secret = 5;
-	string type = 6;
-	string provider = 7;
-	Options options = 8;
-}
-
-message GenerateResponse {
-	Account account = 1;
-}
-
-message GrantRequest {
-	string scope = 1;
-	Resource resource = 2;
-	Options options = 3;
-}
-
-message GrantResponse {}
-
-message RevokeRequest {
-	string scope = 1;
-	Resource resource = 2;
-	Options options = 3;
-}
-
-message RevokeResponse {}
-
-message InspectRequest {
-	string token = 1;
-	Options options = 2;
-}
-
-message InspectResponse {
-	Account account = 1;
-}
-
-message TokenRequest {
-	string id = 1;
-	string secret = 2;
-	string refresh_token = 3;
-	int64 token_expiry = 4;
-	Options options = 5;
-}
-
-message TokenResponse {
-	Token token = 1;
-}
-
-enum Access {
-	UNKNOWN = 0;
-	GRANTED = 1;
-	DENIED = 2;
-}
-
-message Rule {
-	string id = 1;
-	string scope = 2;
-	Resource resource = 3;
-	Access access = 4;
-	int32 priority = 5;
-}
-
-message Options {
-	string namespace = 1;
-}
-
-message CreateRequest {
-	Rule rule = 1;
-	Options options = 2;
-}
-
-message CreateResponse {}
-
-message DeleteRequest {
-	string id = 1;
-	Options options = 2;
-}
-
-message DeleteResponse {}
-
-message ListRequest {
-	Options options = 2;
-}
-
-message ListResponse {
-	repeated Rule rules = 1;
-}

auth/service/service.go

@@ -1,325 +0,0 @@
-// Package servie is a micro service implementation of the auth interface
-package service
-
-import (
-	"context"
-	"strings"
-	"time"
-
-	"github.com/micro/go-micro/v2/auth"
-	pb "github.com/micro/go-micro/v2/auth/service/proto"
-	"github.com/micro/go-micro/v2/client"
-	"github.com/micro/go-micro/v2/util/token"
-	"github.com/micro/go-micro/v2/util/token/jwt"
-)
-
-// svc is the service implementation of the Auth interface
-type svcAuth struct {
-	options auth.Options
-	auth    pb.AuthService
-	rules   pb.RulesService
-	token   token.Provider
-}
-
-func (s *svcAuth) String() string {
-	return "service"
-}
-
-func (s *svcAuth) Init(opts ...auth.Option) {
-	for _, o := range opts {
-		o(&s.options)
-	}
-
-	s.auth = pb.NewAuthService("go.micro.auth", s.options.Client)
-	s.rules = pb.NewRulesService("go.micro.auth", s.options.Client)
-
-	s.setupJWT()
-}
-
-func (s *svcAuth) Options() auth.Options {
-	return s.options
-}
-
-// Generate a new account
-func (s *svcAuth) Generate(id string, opts ...auth.GenerateOption) (*auth.Account, error) {
-	options := auth.NewGenerateOptions(opts...)
-	if len(options.Issuer) == 0 {
-		options.Issuer = s.options.Issuer
-	}
-
-	// we have the JWT private key and generate ourselves an account
-	if len(s.options.PrivateKey) > 0 {
-		acc := &auth.Account{
-			ID:       id,
-			Type:     options.Type,
-			Scopes:   options.Scopes,
-			Metadata: options.Metadata,
-			Issuer:   options.Issuer,
-		}
-
-		tok, err := s.token.Generate(acc, token.WithExpiry(time.Hour*24*365))
-		if err != nil {
-			return nil, err
-		}
-
-		// when using JWTs, the account secret is the JWT's token. This
-		// can be used as an argument in the Token method.
-		acc.Secret = tok.Token
-		return acc, nil
-	}
-
-	rsp, err := s.auth.Generate(context.TODO(), &pb.GenerateRequest{
-		Id:       id,
-		Type:     options.Type,
-		Secret:   options.Secret,
-		Scopes:   options.Scopes,
-		Metadata: options.Metadata,
-		Provider: options.Provider,
-		Options: &pb.Options{
-			Namespace: options.Issuer,
-		},
-	}, s.callOpts()...)
-	if err != nil {
-		return nil, err
-	}
-
-	return serializeAccount(rsp.Account), nil
-}
-
-// Grant access to a resource
-func (s *svcAuth) Grant(rule *auth.Rule) error {
-	access := pb.Access_UNKNOWN
-	if rule.Access == auth.AccessGranted {
-		access = pb.Access_GRANTED
-	} else if rule.Access == auth.AccessDenied {
-		access = pb.Access_DENIED
-	}
-
-	_, err := s.rules.Create(context.TODO(), &pb.CreateRequest{
-		Rule: &pb.Rule{
-			Id:       rule.ID,
-			Scope:    rule.Scope,
-			Priority: rule.Priority,
-			Access:   access,
-			Resource: &pb.Resource{
-				Type:     rule.Resource.Type,
-				Name:     rule.Resource.Name,
-				Endpoint: rule.Resource.Endpoint,
-			},
-		},
-		Options: &pb.Options{
-			Namespace: s.Options().Issuer,
-		},
-	}, s.callOpts()...)
-
-	return err
-}
-
-// Revoke access to a resource
-func (s *svcAuth) Revoke(rule *auth.Rule) error {
-	_, err := s.rules.Delete(context.TODO(), &pb.DeleteRequest{
-		Id: rule.ID, Options: &pb.Options{
-			Namespace: s.Options().Issuer,
-		},
-	}, s.callOpts()...)
-
-	return err
-}
-
-func (s *svcAuth) Rules(opts ...auth.RulesOption) ([]*auth.Rule, error) {
-	var options auth.RulesOptions
-	for _, o := range opts {
-		o(&options)
-	}
-	if options.Context == nil {
-		options.Context = context.TODO()
-	}
-	if len(options.Namespace) == 0 {
-		options.Namespace = s.options.Issuer
-	}
-
-	callOpts := append(s.callOpts(), client.WithCache(time.Second*30))
-	rsp, err := s.rules.List(options.Context, &pb.ListRequest{
-		Options: &pb.Options{Namespace: options.Namespace},
-	}, callOpts...)
-	if err != nil {
-		return nil, err
-	}
-
-	rules := make([]*auth.Rule, len(rsp.Rules))
-	for i, r := range rsp.Rules {
-		rules[i] = serializeRule(r)
-	}
-
-	return rules, nil
-}
-
-// Verify an account has access to a resource
-func (s *svcAuth) Verify(acc *auth.Account, res *auth.Resource, opts ...auth.VerifyOption) error {
-	var options auth.VerifyOptions
-	for _, o := range opts {
-		o(&options)
-	}
-
-	rs, err := s.Rules(
-		auth.RulesContext(options.Context),
-		auth.RulesNamespace(options.Namespace),
-	)
-	if err != nil {
-		return err
-	}
-
-	return auth.VerifyAccess(rs, acc, res)
-}
-
-// Inspect a token
-func (s *svcAuth) Inspect(token string) (*auth.Account, error) {
-	// try to decode JWT locally and fall back to srv if an error occurs
-	if len(strings.Split(token, ".")) == 3 && len(s.options.PublicKey) > 0 {
-		return s.token.Inspect(token)
-	}
-
-	// the token is not a JWT or we do not have the keys to decode it,
-	// fall back to the auth service
-	rsp, err := s.auth.Inspect(context.TODO(), &pb.InspectRequest{
-		Token: token, Options: &pb.Options{Namespace: s.Options().Issuer},
-	}, s.callOpts()...)
-	if err != nil {
-		return nil, err
-	}
-	return serializeAccount(rsp.Account), nil
-}
-
-// Token generation using an account ID and secret
-func (s *svcAuth) Token(opts ...auth.TokenOption) (*auth.Token, error) {
-	options := auth.NewTokenOptions(opts...)
-	if len(options.Issuer) == 0 {
-		options.Issuer = s.options.Issuer
-	}
-
-	// we have the JWT private key and refresh accounts locally
-	if len(s.options.PrivateKey) > 0 {
-		tok := options.RefreshToken
-		if len(options.Secret) > 0 {
-			tok = options.Secret
-		}
-
-		acc, err := s.token.Inspect(tok)
-		if err != nil {
-			return nil, err
-		}
-
-		token, err := s.token.Generate(acc, token.WithExpiry(options.Expiry))
-		if err != nil {
-			return nil, err
-		}
-
-		return &auth.Token{
-			Expiry:       token.Expiry,
-			AccessToken:  token.Token,
-			RefreshToken: tok,
-		}, nil
-	}
-
-	rsp, err := s.auth.Token(context.Background(), &pb.TokenRequest{
-		Id:           options.ID,
-		Secret:       options.Secret,
-		RefreshToken: options.RefreshToken,
-		TokenExpiry:  int64(options.Expiry.Seconds()),
-		Options: &pb.Options{
-			Namespace: options.Issuer,
-		},
-	}, s.callOpts()...)
-	if err != nil {
-		return nil, err
-	}
-
-	return serializeToken(rsp.Token), nil
-}
-
-func serializeToken(t *pb.Token) *auth.Token {
-	return &auth.Token{
-		AccessToken:  t.AccessToken,
-		RefreshToken: t.RefreshToken,
-		Created:      time.Unix(t.Created, 0),
-		Expiry:       time.Unix(t.Expiry, 0),
-	}
-}
-
-func serializeAccount(a *pb.Account) *auth.Account {
-	return &auth.Account{
-		ID:       a.Id,
-		Secret:   a.Secret,
-		Issuer:   a.Issuer,
-		Metadata: a.Metadata,
-		Scopes:   a.Scopes,
-	}
-}
-
-func serializeRule(r *pb.Rule) *auth.Rule {
-	var access auth.Access
-	if r.Access == pb.Access_GRANTED {
-		access = auth.AccessGranted
-	} else {
-		access = auth.AccessDenied
-	}
-
-	return &auth.Rule{
-		ID:       r.Id,
-		Scope:    r.Scope,
-		Access:   access,
-		Priority: r.Priority,
-		Resource: &auth.Resource{
-			Type:     r.Resource.Type,
-			Name:     r.Resource.Name,
-			Endpoint: r.Resource.Endpoint,
-		},
-	}
-}
-
-func (s *svcAuth) callOpts() []client.CallOption {
-	return []client.CallOption{
-		client.WithAddress(s.options.Addrs...),
-	}
-}
-
-// NewAuth returns a new instance of the Auth service
-func NewAuth(opts ...auth.Option) auth.Auth {
-	options := auth.NewOptions(opts...)
-	if options.Client == nil {
-		options.Client = client.DefaultClient
-	}
-	if len(options.Addrs) == 0 {
-		options.Addrs = []string{"127.0.0.1:8010"}
-	}
-
-	service := &svcAuth{
-		auth:    pb.NewAuthService("go.micro.auth", options.Client),
-		rules:   pb.NewRulesService("go.micro.auth", options.Client),
-		options: options,
-	}
-	service.setupJWT()
-
-	return service
-}
-
-func (s *svcAuth) setupJWT() {
-	tokenOpts := []token.Option{}
-
-	// if we have a JWT public key passed as an option,
-	// we can decode tokens with the type "JWT" locally
-	// and not have to make an RPC call
-	if key := s.options.PublicKey; len(key) > 0 {
-		tokenOpts = append(tokenOpts, token.WithPublicKey(key))
-	}
-
-	// if we have a JWT private key passed as an option,
-	// we can generate accounts locally and not have to make
-	// an RPC call, this is used for micro clients such as
-	// api, web, proxy.
-	if key := s.options.PrivateKey; len(key) > 0 {
-		tokenOpts = append(tokenOpts, token.WithPrivateKey(key))
-	}
-
-	s.token = jwt.NewTokenProvider(tokenOpts...)
-}

broker/broker.go

@@ -37,31 +37,3 @@ type Subscriber interface {
 	Topic() string
 	Unsubscribe() error
 }
-
-var (
-	DefaultBroker Broker = NewBroker()
-)
-
-func Init(opts ...Option) error {
-	return DefaultBroker.Init(opts...)
-}
-
-func Connect() error {
-	return DefaultBroker.Connect()
-}
-
-func Disconnect() error {
-	return DefaultBroker.Disconnect()
-}
-
-func Publish(topic string, msg *Message, opts ...PublishOption) error {
-	return DefaultBroker.Publish(topic, msg, opts...)
-}
-
-func Subscribe(topic string, handler Handler, opts ...SubscribeOption) (Subscriber, error) {
-	return DefaultBroker.Subscribe(topic, handler, opts...)
-}
-
-func String() string {
-	return DefaultBroker.String()
-}

broker/http.go

@@ -1,711 +0,0 @@
-// Package http provides a http based message broker
-package broker
-
-import (
-	"bytes"
-	"context"
-	"crypto/tls"
-	"errors"
-	"fmt"
-	"io"
-	"io/ioutil"
-	"math/rand"
-	"net"
-	"net/http"
-	"net/url"
-	"runtime"
-	"sync"
-	"time"
-
-	"github.com/google/uuid"
-	"github.com/micro/go-micro/v2/codec/json"
-	merr "github.com/micro/go-micro/v2/errors"
-	"github.com/micro/go-micro/v2/registry"
-	"github.com/micro/go-micro/v2/registry/cache"
-	maddr "github.com/micro/go-micro/v2/util/addr"
-	mnet "github.com/micro/go-micro/v2/util/net"
-	mls "github.com/micro/go-micro/v2/util/tls"
-	"golang.org/x/net/http2"
-)
-
-// HTTP Broker is a point to point async broker
-type httpBroker struct {
-	id      string
-	address string
-	opts    Options
-
-	mux *http.ServeMux
-
-	c *http.Client
-	r registry.Registry
-
-	sync.RWMutex
-	subscribers map[string][]*httpSubscriber
-	running     bool
-	exit        chan chan error
-
-	// offline message inbox
-	mtx   sync.RWMutex
-	inbox map[string][][]byte
-}
-
-type httpSubscriber struct {
-	opts  SubscribeOptions
-	id    string
-	topic string
-	fn    Handler
-	svc   *registry.Service
-	hb    *httpBroker
-}
-
-type httpEvent struct {
-	m   *Message
-	t   string
-	err error
-}
-
-var (
-	DefaultPath      = "/"
-	DefaultAddress   = "127.0.0.1:0"
-	serviceName      = "micro.http.broker"
-	broadcastVersion = "ff.http.broadcast"
-	registerTTL      = time.Minute
-	registerInterval = time.Second * 30
-)
-
-func init() {
-	rand.Seed(time.Now().Unix())
-}
-
-func newTransport(config *tls.Config) *http.Transport {
-	if config == nil {
-		config = &tls.Config{
-			InsecureSkipVerify: true,
-		}
-	}
-
-	dialTLS := func(network string, addr string) (net.Conn, error) {
-		return tls.Dial(network, addr, config)
-	}
-
-	t := &http.Transport{
-		Proxy: http.ProxyFromEnvironment,
-		Dial: (&net.Dialer{
-			Timeout:   30 * time.Second,
-			KeepAlive: 30 * time.Second,
-		}).Dial,
-		TLSHandshakeTimeout: 10 * time.Second,
-		DialTLS:             dialTLS,
-	}
-	runtime.SetFinalizer(&t, func(tr **http.Transport) {
-		(*tr).CloseIdleConnections()
-	})
-
-	// setup http2
-	http2.ConfigureTransport(t)
-
-	return t
-}
-
-func newHttpBroker(opts ...Option) Broker {
-	options := Options{
-		Codec:    json.Marshaler{},
-		Context:  context.TODO(),
-		Registry: registry.DefaultRegistry,
-	}
-
-	for _, o := range opts {
-		o(&options)
-	}
-
-	// set address
-	addr := DefaultAddress
-
-	if len(options.Addrs) > 0 && len(options.Addrs[0]) > 0 {
-		addr = options.Addrs[0]
-	}
-
-	h := &httpBroker{
-		id:          uuid.New().String(),
-		address:     addr,
-		opts:        options,
-		r:           options.Registry,
-		c:           &http.Client{Transport: newTransport(options.TLSConfig)},
-		subscribers: make(map[string][]*httpSubscriber),
-		exit:        make(chan chan error),
-		mux:         http.NewServeMux(),
-		inbox:       make(map[string][][]byte),
-	}
-
-	// specify the message handler
-	h.mux.Handle(DefaultPath, h)
-
-	// get optional handlers
-	if h.opts.Context != nil {
-		handlers, ok := h.opts.Context.Value("http_handlers").(map[string]http.Handler)
-		if ok {
-			for pattern, handler := range handlers {
-				h.mux.Handle(pattern, handler)
-			}
-		}
-	}
-
-	return h
-}
-
-func (h *httpEvent) Ack() error {
-	return nil
-}
-
-func (h *httpEvent) Error() error {
-	return h.err
-}
-
-func (h *httpEvent) Message() *Message {
-	return h.m
-}
-
-func (h *httpEvent) Topic() string {
-	return h.t
-}
-
-func (h *httpSubscriber) Options() SubscribeOptions {
-	return h.opts
-}
-
-func (h *httpSubscriber) Topic() string {
-	return h.topic
-}
-
-func (h *httpSubscriber) Unsubscribe() error {
-	return h.hb.unsubscribe(h)
-}
-
-func (h *httpBroker) saveMessage(topic string, msg []byte) {
-	h.mtx.Lock()
-	defer h.mtx.Unlock()
-
-	// get messages
-	c := h.inbox[topic]
-
-	// save message
-	c = append(c, msg)
-
-	// max length 64
-	if len(c) > 64 {
-		c = c[:64]
-	}
-
-	// save inbox
-	h.inbox[topic] = c
-}
-
-func (h *httpBroker) getMessage(topic string, num int) [][]byte {
-	h.mtx.Lock()
-	defer h.mtx.Unlock()
-
-	// get messages
-	c, ok := h.inbox[topic]
-	if !ok {
-		return nil
-	}
-
-	// more message than requests
-	if len(c) >= num {
-		msg := c[:num]
-		h.inbox[topic] = c[num:]
-		return msg
-	}
-
-	// reset inbox
-	h.inbox[topic] = nil
-
-	// return all messages
-	return c
-}
-
-func (h *httpBroker) subscribe(s *httpSubscriber) error {
-	h.Lock()
-	defer h.Unlock()
-
-	if err := h.r.Register(s.svc, registry.RegisterTTL(registerTTL)); err != nil {
-		return err
-	}
-
-	h.subscribers[s.topic] = append(h.subscribers[s.topic], s)
-	return nil
-}
-
-func (h *httpBroker) unsubscribe(s *httpSubscriber) error {
-	h.Lock()
-	defer h.Unlock()
-
-	//nolint:prealloc
-	var subscribers []*httpSubscriber
-
-	// look for subscriber
-	for _, sub := range h.subscribers[s.topic] {
-		// deregister and skip forward
-		if sub == s {
-			_ = h.r.Deregister(sub.svc)
-			continue
-		}
-		// keep subscriber
-		subscribers = append(subscribers, sub)
-	}
-
-	// set subscribers
-	h.subscribers[s.topic] = subscribers
-
-	return nil
-}
-
-func (h *httpBroker) run(l net.Listener) {
-	t := time.NewTicker(registerInterval)
-	defer t.Stop()
-
-	for {
-		select {
-		// heartbeat for each subscriber
-		case <-t.C:
-			h.RLock()
-			for _, subs := range h.subscribers {
-				for _, sub := range subs {
-					_ = h.r.Register(sub.svc, registry.RegisterTTL(registerTTL))
-				}
-			}
-			h.RUnlock()
-		// received exit signal
-		case ch := <-h.exit:
-			ch <- l.Close()
-			h.RLock()
-			for _, subs := range h.subscribers {
-				for _, sub := range subs {
-					_ = h.r.Deregister(sub.svc)
-				}
-			}
-			h.RUnlock()
-			return
-		}
-	}
-}
-
-func (h *httpBroker) ServeHTTP(w http.ResponseWriter, req *http.Request) {
-	if req.Method != "POST" {
-		err := merr.BadRequest("go.micro.broker", "Method not allowed")
-		http.Error(w, err.Error(), http.StatusMethodNotAllowed)
-		return
-	}
-	defer req.Body.Close()
-
-	req.ParseForm()
-
-	b, err := ioutil.ReadAll(req.Body)
-	if err != nil {
-		errr := merr.InternalServerError("go.micro.broker", "Error reading request body: %v", err)
-		w.WriteHeader(500)
-		w.Write([]byte(errr.Error()))
-		return
-	}
-
-	var m *Message
-	if err = h.opts.Codec.Unmarshal(b, &m); err != nil {
-		errr := merr.InternalServerError("go.micro.broker", "Error parsing request body: %v", err)
-		w.WriteHeader(500)
-		w.Write([]byte(errr.Error()))
-		return
-	}
-
-	topic := m.Header["Micro-Topic"]
-	//delete(m.Header, ":topic")
-
-	if len(topic) == 0 {
-		errr := merr.InternalServerError("go.micro.broker", "Topic not found")
-		w.WriteHeader(500)
-		w.Write([]byte(errr.Error()))
-		return
-	}
-
-	p := &httpEvent{m: m, t: topic}
-	id := req.Form.Get("id")
-
-	//nolint:prealloc
-	var subs []Handler
-
-	h.RLock()
-	for _, subscriber := range h.subscribers[topic] {
-		if id != subscriber.id {
-			continue
-		}
-		subs = append(subs, subscriber.fn)
-	}
-	h.RUnlock()
-
-	// execute the handler
-	for _, fn := range subs {
-		p.err = fn(p)
-	}
-}
-
-func (h *httpBroker) Address() string {
-	h.RLock()
-	defer h.RUnlock()
-	return h.address
-}
-
-func (h *httpBroker) Connect() error {
-	h.RLock()
-	if h.running {
-		h.RUnlock()
-		return nil
-	}
-	h.RUnlock()
-
-	h.Lock()
-	defer h.Unlock()
-
-	var l net.Listener
-	var err error
-
-	if h.opts.Secure || h.opts.TLSConfig != nil {
-		config := h.opts.TLSConfig
-
-		fn := func(addr string) (net.Listener, error) {
-			if config == nil {
-				hosts := []string{addr}
-
-				// check if its a valid host:port
-				if host, _, err := net.SplitHostPort(addr); err == nil {
-					if len(host) == 0 {
-						hosts = maddr.IPs()
-					} else {
-						hosts = []string{host}
-					}
-				}
-
-				// generate a certificate
-				cert, err := mls.Certificate(hosts...)
-				if err != nil {
-					return nil, err
-				}
-				config = &tls.Config{Certificates: []tls.Certificate{cert}}
-			}
-			return tls.Listen("tcp", addr, config)
-		}
-
-		l, err = mnet.Listen(h.address, fn)
-	} else {
-		fn := func(addr string) (net.Listener, error) {
-			return net.Listen("tcp", addr)
-		}
-
-		l, err = mnet.Listen(h.address, fn)
-	}
-
-	if err != nil {
-		return err
-	}
-
-	addr := h.address
-	h.address = l.Addr().String()
-
-	go http.Serve(l, h.mux)
-	go func() {
-		h.run(l)
-		h.Lock()
-		h.opts.Addrs = []string{addr}
-		h.address = addr
-		h.Unlock()
-	}()
-
-	// get registry
-	reg := h.opts.Registry
-	if reg == nil {
-		reg = registry.DefaultRegistry
-	}
-	// set cache
-	h.r = cache.New(reg)
-
-	// set running
-	h.running = true
-	return nil
-}
-
-func (h *httpBroker) Disconnect() error {
-	h.RLock()
-	if !h.running {
-		h.RUnlock()
-		return nil
-	}
-	h.RUnlock()
-
-	h.Lock()
-	defer h.Unlock()
-
-	// stop cache
-	rc, ok := h.r.(cache.Cache)
-	if ok {
-		rc.Stop()
-	}
-
-	// exit and return err
-	ch := make(chan error)
-	h.exit <- ch
-	err := <-ch
-
-	// set not running
-	h.running = false
-	return err
-}
-
-func (h *httpBroker) Init(opts ...Option) error {
-	h.RLock()
-	if h.running {
-		h.RUnlock()
-		return errors.New("cannot init while connected")
-	}
-	h.RUnlock()
-
-	h.Lock()
-	defer h.Unlock()
-
-	for _, o := range opts {
-		o(&h.opts)
-	}
-
-	if len(h.opts.Addrs) > 0 && len(h.opts.Addrs[0]) > 0 {
-		h.address = h.opts.Addrs[0]
-	}
-
-	if len(h.id) == 0 {
-		h.id = "go.micro.http.broker-" + uuid.New().String()
-	}
-
-	// get registry
-	reg := h.opts.Registry
-	if reg == nil {
-		reg = registry.DefaultRegistry
-	}
-
-	// get cache
-	if rc, ok := h.r.(cache.Cache); ok {
-		rc.Stop()
-	}
-
-	// set registry
-	h.r = cache.New(reg)
-
-	// reconfigure tls config
-	if c := h.opts.TLSConfig; c != nil {
-		h.c = &http.Client{
-			Transport: newTransport(c),
-		}
-	}
-
-	return nil
-}
-
-func (h *httpBroker) Options() Options {
-	return h.opts
-}
-
-func (h *httpBroker) Publish(topic string, msg *Message, opts ...PublishOption) error {
-	// create the message first
-	m := &Message{
-		Header: make(map[string]string),
-		Body:   msg.Body,
-	}
-
-	for k, v := range msg.Header {
-		m.Header[k] = v
-	}
-
-	m.Header["Micro-Topic"] = topic
-
-	// encode the message
-	b, err := h.opts.Codec.Marshal(m)
-	if err != nil {
-		return err
-	}
-
-	// save the message
-	h.saveMessage(topic, b)
-
-	// now attempt to get the service
-	h.RLock()
-	s, err := h.r.GetService(serviceName)
-	if err != nil {
-		h.RUnlock()
-		return err
-	}
-	h.RUnlock()
-
-	pub := func(node *registry.Node, t string, b []byte) error {
-		scheme := "http"
-
-		// check if secure is added in metadata
-		if node.Metadata["secure"] == "true" {
-			scheme = "https"
-		}
-
-		vals := url.Values{}
-		vals.Add("id", node.Id)
-
-		uri := fmt.Sprintf("%s://%s%s?%s", scheme, node.Address, DefaultPath, vals.Encode())
-		r, err := h.c.Post(uri, "application/json", bytes.NewReader(b))
-		if err != nil {
-			return err
-		}
-
-		// discard response body
-		io.Copy(ioutil.Discard, r.Body)
-		r.Body.Close()
-		return nil
-	}
-
-	srv := func(s []*registry.Service, b []byte) {
-		for _, service := range s {
-			var nodes []*registry.Node
-
-			for _, node := range service.Nodes {
-				// only use nodes tagged with broker http
-				if node.Metadata["broker"] != "http" {
-					continue
-				}
-
-				// look for nodes for the topic
-				if node.Metadata["topic"] != topic {
-					continue
-				}
-
-				nodes = append(nodes, node)
-			}
-
-			// only process if we have nodes
-			if len(nodes) == 0 {
-				continue
-			}
-
-			switch service.Version {
-			// broadcast version means broadcast to all nodes
-			case broadcastVersion:
-				var success bool
-
-				// publish to all nodes
-				for _, node := range nodes {
-					// publish async
-					if err := pub(node, topic, b); err == nil {
-						success = true
-					}
-				}
-
-				// save if it failed to publish at least once
-				if !success {
-					h.saveMessage(topic, b)
-				}
-			default:
-				// select node to publish to
-				node := nodes[rand.Int()%len(nodes)]
-
-				// publish async to one node
-				if err := pub(node, topic, b); err != nil {
-					// if failed save it
-					h.saveMessage(topic, b)
-				}
-			}
-		}
-	}
-
-	// do the rest async
-	go func() {
-		// get a third of the backlog
-		messages := h.getMessage(topic, 8)
-		delay := (len(messages) > 1)
-
-		// publish all the messages
-		for _, msg := range messages {
-			// serialize here
-			srv(s, msg)
-
-			// sending a backlog of messages
-			if delay {
-				time.Sleep(time.Millisecond * 100)
-			}
-		}
-	}()
-
-	return nil
-}
-
-func (h *httpBroker) Subscribe(topic string, handler Handler, opts ...SubscribeOption) (Subscriber, error) {
-	var err error
-	var host, port string
-	options := NewSubscribeOptions(opts...)
-
-	// parse address for host, port
-	host, port, err = net.SplitHostPort(h.Address())
-	if err != nil {
-		return nil, err
-	}
-
-	addr, err := maddr.Extract(host)
-	if err != nil {
-		return nil, err
-	}
-
-	var secure bool
-
-	if h.opts.Secure || h.opts.TLSConfig != nil {
-		secure = true
-	}
-
-	// register service
-	node := &registry.Node{
-		Id:      topic + "-" + h.id,
-		Address: mnet.HostPort(addr, port),
-		Metadata: map[string]string{
-			"secure": fmt.Sprintf("%t", secure),
-			"broker": "http",
-			"topic":  topic,
-		},
-	}
-
-	// check for queue group or broadcast queue
-	version := options.Queue
-	if len(version) == 0 {
-		version = broadcastVersion
-	}
-
-	service := &registry.Service{
-		Name:    serviceName,
-		Version: version,
-		Nodes:   []*registry.Node{node},
-	}
-
-	// generate subscriber
-	subscriber := &httpSubscriber{
-		opts:  options,
-		hb:    h,
-		id:    node.Id,
-		topic: topic,
-		fn:    handler,
-		svc:   service,
-	}
-
-	// subscribe now
-	if err := h.subscribe(subscriber); err != nil {
-		return nil, err
-	}
-
-	// return the subscriber
-	return subscriber, nil
-}
-
-func (h *httpBroker) String() string {
-	return "http"
-}
-
-// NewBroker returns a new http broker
-func NewBroker(opts ...Option) Broker {
-	return newHttpBroker(opts...)
-}

broker/http/http.go

@@ -2,10 +2,712 @@
 package http
 
 import (
-	"github.com/micro/go-micro/v2/broker"
+	"bytes"
+	"context"
+	"crypto/tls"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"math/rand"
+	"net"
+	"net/http"
+	"net/url"
+	"runtime"
+	"sync"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/micro/go-micro/v3/broker"
+	"github.com/micro/go-micro/v3/codec/json"
+	merr "github.com/micro/go-micro/v3/errors"
+	"github.com/micro/go-micro/v3/registry"
+	"github.com/micro/go-micro/v3/registry/cache"
+	"github.com/micro/go-micro/v3/registry/mdns"
+	maddr "github.com/micro/go-micro/v3/util/addr"
+	mnet "github.com/micro/go-micro/v3/util/net"
+	mls "github.com/micro/go-micro/v3/util/tls"
+	"golang.org/x/net/http2"
 )
 
+// HTTP Broker is a point to point async broker
+type httpBroker struct {
+	id      string
+	address string
+	opts    broker.Options
+
+	mux *http.ServeMux
+
+	c *http.Client
+	r registry.Registry
+
+	sync.RWMutex
+	subscribers map[string][]*httpSubscriber
+	running     bool
+	exit        chan chan error
+
+	// offline message inbox
+	mtx   sync.RWMutex
+	inbox map[string][][]byte
+}
+
+type httpSubscriber struct {
+	opts  broker.SubscribeOptions
+	id    string
+	topic string
+	fn    broker.Handler
+	svc   *registry.Service
+	hb    *httpBroker
+}
+
+type httpEvent struct {
+	m   *broker.Message
+	t   string
+	err error
+}
+
+var (
+	DefaultPath      = "/"
+	DefaultAddress   = "127.0.0.1:0"
+	serviceName      = "micro.http.broker"
+	broadcastVersion = "ff.http.broadcast"
+	registerTTL      = time.Minute
+	registerInterval = time.Second * 30
+)
+
+func init() {
+	rand.Seed(time.Now().Unix())
+}
+
+func newTransport(config *tls.Config) *http.Transport {
+	if config == nil {
+		config = &tls.Config{
+			InsecureSkipVerify: true,
+		}
+	}
+
+	dialTLS := func(network string, addr string) (net.Conn, error) {
+		return tls.Dial(network, addr, config)
+	}
+
+	t := &http.Transport{
+		Proxy: http.ProxyFromEnvironment,
+		Dial: (&net.Dialer{
+			Timeout:   30 * time.Second,
+			KeepAlive: 30 * time.Second,
+		}).Dial,
+		TLSHandshakeTimeout: 10 * time.Second,
+		DialTLS:             dialTLS,
+	}
+	runtime.SetFinalizer(&t, func(tr **http.Transport) {
+		(*tr).CloseIdleConnections()
+	})
+
+	// setup http2
+	http2.ConfigureTransport(t)
+
+	return t
+}
+
+func newHttpBroker(opts ...broker.Option) broker.Broker {
+	options := broker.Options{
+		Codec:    json.Marshaler{},
+		Context:  context.TODO(),
+		Registry: mdns.NewRegistry(),
+	}
+
+	for _, o := range opts {
+		o(&options)
+	}
+
+	// set address
+	addr := DefaultAddress
+
+	if len(options.Addrs) > 0 && len(options.Addrs[0]) > 0 {
+		addr = options.Addrs[0]
+	}
+
+	h := &httpBroker{
+		id:          uuid.New().String(),
+		address:     addr,
+		opts:        options,
+		r:           options.Registry,
+		c:           &http.Client{Transport: newTransport(options.TLSConfig)},
+		subscribers: make(map[string][]*httpSubscriber),
+		exit:        make(chan chan error),
+		mux:         http.NewServeMux(),
+		inbox:       make(map[string][][]byte),
+	}
+
+	// specify the message handler
+	h.mux.Handle(DefaultPath, h)
+
+	// get optional handlers
+	if h.opts.Context != nil {
+		handlers, ok := h.opts.Context.Value("http_handlers").(map[string]http.Handler)
+		if ok {
+			for pattern, handler := range handlers {
+				h.mux.Handle(pattern, handler)
+			}
+		}
+	}
+
+	return h
+}
+
+func (h *httpEvent) Ack() error {
+	return nil
+}
+
+func (h *httpEvent) Error() error {
+	return h.err
+}
+
+func (h *httpEvent) Message() *broker.Message {
+	return h.m
+}
+
+func (h *httpEvent) Topic() string {
+	return h.t
+}
+
+func (h *httpSubscriber) Options() broker.SubscribeOptions {
+	return h.opts
+}
+
+func (h *httpSubscriber) Topic() string {
+	return h.topic
+}
+
+func (h *httpSubscriber) Unsubscribe() error {
+	return h.hb.unsubscribe(h)
+}
+
+func (h *httpBroker) saveMessage(topic string, msg []byte) {
+	h.mtx.Lock()
+	defer h.mtx.Unlock()
+
+	// get messages
+	c := h.inbox[topic]
+
+	// save message
+	c = append(c, msg)
+
+	// max length 64
+	if len(c) > 64 {
+		c = c[:64]
+	}
+
+	// save inbox
+	h.inbox[topic] = c
+}
+
+func (h *httpBroker) getMessage(topic string, num int) [][]byte {
+	h.mtx.Lock()
+	defer h.mtx.Unlock()
+
+	// get messages
+	c, ok := h.inbox[topic]
+	if !ok {
+		return nil
+	}
+
+	// more message than requests
+	if len(c) >= num {
+		msg := c[:num]
+		h.inbox[topic] = c[num:]
+		return msg
+	}
+
+	// reset inbox
+	h.inbox[topic] = nil
+
+	// return all messages
+	return c
+}
+
+func (h *httpBroker) subscribe(s *httpSubscriber) error {
+	h.Lock()
+	defer h.Unlock()
+
+	if err := h.r.Register(s.svc, registry.RegisterTTL(registerTTL)); err != nil {
+		return err
+	}
+
+	h.subscribers[s.topic] = append(h.subscribers[s.topic], s)
+	return nil
+}
+
+func (h *httpBroker) unsubscribe(s *httpSubscriber) error {
+	h.Lock()
+	defer h.Unlock()
+
+	//nolint:prealloc
+	var subscribers []*httpSubscriber
+
+	// look for subscriber
+	for _, sub := range h.subscribers[s.topic] {
+		// deregister and skip forward
+		if sub == s {
+			_ = h.r.Deregister(sub.svc)
+			continue
+		}
+		// keep subscriber
+		subscribers = append(subscribers, sub)
+	}
+
+	// set subscribers
+	h.subscribers[s.topic] = subscribers
+
+	return nil
+}
+
+func (h *httpBroker) run(l net.Listener) {
+	t := time.NewTicker(registerInterval)
+	defer t.Stop()
+
+	for {
+		select {
+		// heartbeat for each subscriber
+		case <-t.C:
+			h.RLock()
+			for _, subs := range h.subscribers {
+				for _, sub := range subs {
+					_ = h.r.Register(sub.svc, registry.RegisterTTL(registerTTL))
+				}
+			}
+			h.RUnlock()
+		// received exit signal
+		case ch := <-h.exit:
+			ch <- l.Close()
+			h.RLock()
+			for _, subs := range h.subscribers {
+				for _, sub := range subs {
+					_ = h.r.Deregister(sub.svc)
+				}
+			}
+			h.RUnlock()
+			return
+		}
+	}
+}
+
+func (h *httpBroker) ServeHTTP(w http.ResponseWriter, req *http.Request) {
+	if req.Method != "POST" {
+		err := merr.BadRequest("go.micro.broker", "Method not allowed")
+		http.Error(w, err.Error(), http.StatusMethodNotAllowed)
+		return
+	}
+	defer req.Body.Close()
+
+	req.ParseForm()
+
+	b, err := ioutil.ReadAll(req.Body)
+	if err != nil {
+		errr := merr.InternalServerError("go.micro.broker", "Error reading request body: %v", err)
+		w.WriteHeader(500)
+		w.Write([]byte(errr.Error()))
+		return
+	}
+
+	var m *broker.Message
+	if err = h.opts.Codec.Unmarshal(b, &m); err != nil {
+		errr := merr.InternalServerError("go.micro.broker", "Error parsing request body: %v", err)
+		w.WriteHeader(500)
+		w.Write([]byte(errr.Error()))
+		return
+	}
+
+	topic := m.Header["Micro-Topic"]
+	//delete(m.Header, ":topic")
+
+	if len(topic) == 0 {
+		errr := merr.InternalServerError("go.micro.broker", "Topic not found")
+		w.WriteHeader(500)
+		w.Write([]byte(errr.Error()))
+		return
+	}
+
+	p := &httpEvent{m: m, t: topic}
+	id := req.Form.Get("id")
+
+	//nolint:prealloc
+	var subs []broker.Handler
+
+	h.RLock()
+	for _, subscriber := range h.subscribers[topic] {
+		if id != subscriber.id {
+			continue
+		}
+		subs = append(subs, subscriber.fn)
+	}
+	h.RUnlock()
+
+	// execute the handler
+	for _, fn := range subs {
+		p.err = fn(p)
+	}
+}
+
+func (h *httpBroker) Address() string {
+	h.RLock()
+	defer h.RUnlock()
+	return h.address
+}
+
+func (h *httpBroker) Connect() error {
+	h.RLock()
+	if h.running {
+		h.RUnlock()
+		return nil
+	}
+	h.RUnlock()
+
+	h.Lock()
+	defer h.Unlock()
+
+	var l net.Listener
+	var err error
+
+	if h.opts.Secure || h.opts.TLSConfig != nil {
+		config := h.opts.TLSConfig
+
+		fn := func(addr string) (net.Listener, error) {
+			if config == nil {
+				hosts := []string{addr}
+
+				// check if its a valid host:port
+				if host, _, err := net.SplitHostPort(addr); err == nil {
+					if len(host) == 0 {
+						hosts = maddr.IPs()
+					} else {
+						hosts = []string{host}
+					}
+				}
+
+				// generate a certificate
+				cert, err := mls.Certificate(hosts...)
+				if err != nil {
+					return nil, err
+				}
+				config = &tls.Config{Certificates: []tls.Certificate{cert}}
+			}
+			return tls.Listen("tcp", addr, config)
+		}
+
+		l, err = mnet.Listen(h.address, fn)
+	} else {
+		fn := func(addr string) (net.Listener, error) {
+			return net.Listen("tcp", addr)
+		}
+
+		l, err = mnet.Listen(h.address, fn)
+	}
+
+	if err != nil {
+		return err
+	}
+
+	addr := h.address
+	h.address = l.Addr().String()
+
+	go http.Serve(l, h.mux)
+	go func() {
+		h.run(l)
+		h.Lock()
+		h.opts.Addrs = []string{addr}
+		h.address = addr
+		h.Unlock()
+	}()
+
+	// get registry
+	reg := h.opts.Registry
+	if reg == nil {
+		reg = mdns.NewRegistry()
+	}
+	// set cache
+	h.r = cache.New(reg)
+
+	// set running
+	h.running = true
+	return nil
+}
+
+func (h *httpBroker) Disconnect() error {
+	h.RLock()
+	if !h.running {
+		h.RUnlock()
+		return nil
+	}
+	h.RUnlock()
+
+	h.Lock()
+	defer h.Unlock()
+
+	// stop cache
+	rc, ok := h.r.(cache.Cache)
+	if ok {
+		rc.Stop()
+	}
+
+	// exit and return err
+	ch := make(chan error)
+	h.exit <- ch
+	err := <-ch
+
+	// set not running
+	h.running = false
+	return err
+}
+
+func (h *httpBroker) Init(opts ...broker.Option) error {
+	h.RLock()
+	if h.running {
+		h.RUnlock()
+		return errors.New("cannot init while connected")
+	}
+	h.RUnlock()
+
+	h.Lock()
+	defer h.Unlock()
+
+	for _, o := range opts {
+		o(&h.opts)
+	}
+
+	if len(h.opts.Addrs) > 0 && len(h.opts.Addrs[0]) > 0 {
+		h.address = h.opts.Addrs[0]
+	}
+
+	if len(h.id) == 0 {
+		h.id = "go.micro.http.broker-" + uuid.New().String()
+	}
+
+	// get registry
+	reg := h.opts.Registry
+	if reg == nil {
+		reg = mdns.NewRegistry()
+	}
+
+	// get cache
+	if rc, ok := h.r.(cache.Cache); ok {
+		rc.Stop()
+	}
+
+	// set registry
+	h.r = cache.New(reg)
+
+	// reconfigure tls config
+	if c := h.opts.TLSConfig; c != nil {
+		h.c = &http.Client{
+			Transport: newTransport(c),
+		}
+	}
+
+	return nil
+}
+
+func (h *httpBroker) Options() broker.Options {
+	return h.opts
+}
+
+func (h *httpBroker) Publish(topic string, msg *broker.Message, opts ...broker.PublishOption) error {
+	// create the message first
+	m := &broker.Message{
+		Header: make(map[string]string),
+		Body:   msg.Body,
+	}
+
+	for k, v := range msg.Header {
+		m.Header[k] = v
+	}
+
+	m.Header["Micro-Topic"] = topic
+
+	// encode the message
+	b, err := h.opts.Codec.Marshal(m)
+	if err != nil {
+		return err
+	}
+
+	// save the message
+	h.saveMessage(topic, b)
+
+	// now attempt to get the service
+	h.RLock()
+	s, err := h.r.GetService(serviceName)
+	if err != nil {
+		h.RUnlock()
+		return err
+	}
+	h.RUnlock()
+
+	pub := func(node *registry.Node, t string, b []byte) error {
+		scheme := "http"
+
+		// check if secure is added in metadata
+		if node.Metadata["secure"] == "true" {
+			scheme = "https"
+		}
+
+		vals := url.Values{}
+		vals.Add("id", node.Id)
+
+		uri := fmt.Sprintf("%s://%s%s?%s", scheme, node.Address, DefaultPath, vals.Encode())
+		r, err := h.c.Post(uri, "application/json", bytes.NewReader(b))
+		if err != nil {
+			return err
+		}
+
+		// discard response body
+		io.Copy(ioutil.Discard, r.Body)
+		r.Body.Close()
+		return nil
+	}
+
+	srv := func(s []*registry.Service, b []byte) {
+		for _, service := range s {
+			var nodes []*registry.Node
+
+			for _, node := range service.Nodes {
+				// only use nodes tagged with broker http
+				if node.Metadata["broker"] != "http" {
+					continue
+				}
+
+				// look for nodes for the topic
+				if node.Metadata["topic"] != topic {
+					continue
+				}
+
+				nodes = append(nodes, node)
+			}
+
+			// only process if we have nodes
+			if len(nodes) == 0 {
+				continue
+			}
+
+			switch service.Version {
+			// broadcast version means broadcast to all nodes
+			case broadcastVersion:
+				var success bool
+
+				// publish to all nodes
+				for _, node := range nodes {
+					// publish async
+					if err := pub(node, topic, b); err == nil {
+						success = true
+					}
+				}
+
+				// save if it failed to publish at least once
+				if !success {
+					h.saveMessage(topic, b)
+				}
+			default:
+				// select node to publish to
+				node := nodes[rand.Int()%len(nodes)]
+
+				// publish async to one node
+				if err := pub(node, topic, b); err != nil {
+					// if failed save it
+					h.saveMessage(topic, b)
+				}
+			}
+		}
+	}
+
+	// do the rest async
+	go func() {
+		// get a third of the backlog
+		messages := h.getMessage(topic, 8)
+		delay := (len(messages) > 1)
+
+		// publish all the messages
+		for _, msg := range messages {
+			// serialize here
+			srv(s, msg)
+
+			// sending a backlog of messages
+			if delay {
+				time.Sleep(time.Millisecond * 100)
+			}
+		}
+	}()
+
+	return nil
+}
+
+func (h *httpBroker) Subscribe(topic string, handler broker.Handler, opts ...broker.SubscribeOption) (broker.Subscriber, error) {
+	var err error
+	var host, port string
+	options := broker.NewSubscribeOptions(opts...)
+
+	// parse address for host, port
+	host, port, err = net.SplitHostPort(h.Address())
+	if err != nil {
+		return nil, err
+	}
+
+	addr, err := maddr.Extract(host)
+	if err != nil {
+		return nil, err
+	}
+
+	var secure bool
+
+	if h.opts.Secure || h.opts.TLSConfig != nil {
+		secure = true
+	}
+
+	// register service
+	node := &registry.Node{
+		Id:      topic + "-" + h.id,
+		Address: mnet.HostPort(addr, port),
+		Metadata: map[string]string{
+			"secure": fmt.Sprintf("%t", secure),
+			"broker": "http",
+			"topic":  topic,
+		},
+	}
+
+	// check for queue group or broadcast queue
+	version := options.Queue
+	if len(version) == 0 {
+		version = broadcastVersion
+	}
+
+	service := &registry.Service{
+		Name:    serviceName,
+		Version: version,
+		Nodes:   []*registry.Node{node},
+	}
+
+	// generate subscriber
+	subscriber := &httpSubscriber{
+		opts:  options,
+		hb:    h,
+		id:    node.Id,
+		topic: topic,
+		fn:    handler,
+		svc:   service,
+	}
+
+	// subscribe now
+	if err := h.subscribe(subscriber); err != nil {
+		return nil, err
+	}
+
+	// return the subscriber
+	return subscriber, nil
+}
+
+func (h *httpBroker) String() string {
+	return "http"
+}
+
 // NewBroker returns a new http broker
 func NewBroker(opts ...broker.Option) broker.Broker {
-	return broker.NewBroker(opts...)
+	return newHttpBroker(opts...)
 }

broker/http/http_test.go

@@ -1,4 +1,4 @@
-package broker_test
+package http
 
 import (
 	"sync"
@@ -6,9 +6,9 @@ import (
 	"time"
 
 	"github.com/google/uuid"
-	"github.com/micro/go-micro/v2/broker"
-	"github.com/micro/go-micro/v2/registry"
-	"github.com/micro/go-micro/v2/registry/memory"
+	"github.com/micro/go-micro/v3/broker"
+	"github.com/micro/go-micro/v3/registry"
+	"github.com/micro/go-micro/v3/registry/memory"
 )
 
 var (
@@ -61,7 +61,7 @@ func sub(be *testing.B, c int) {
 	be.StopTimer()
 	m := newTestRegistry()
 
-	b := broker.NewBroker(broker.Registry(m))
+	b := NewBroker(broker.Registry(m))
 	topic := uuid.New().String()
 
 	if err := b.Init(); err != nil {
@@ -120,7 +120,7 @@ func sub(be *testing.B, c int) {
 func pub(be *testing.B, c int) {
 	be.StopTimer()
 	m := newTestRegistry()
-	b := broker.NewBroker(broker.Registry(m))
+	b := NewBroker(broker.Registry(m))
 	topic := uuid.New().String()
 
 	if err := b.Init(); err != nil {
@@ -189,7 +189,7 @@ func pub(be *testing.B, c int) {
 
 func TestBroker(t *testing.T) {
 	m := newTestRegistry()
-	b := broker.NewBroker(broker.Registry(m))
+	b := NewBroker(broker.Registry(m))
 
 	if err := b.Init(); err != nil {
 		t.Fatalf("Unexpected init error: %v", err)
@@ -236,7 +236,7 @@ func TestBroker(t *testing.T) {
 
 func TestConcurrentSubBroker(t *testing.T) {
 	m := newTestRegistry()
-	b := broker.NewBroker(broker.Registry(m))
+	b := NewBroker(broker.Registry(m))
 
 	if err := b.Init(); err != nil {
 		t.Fatalf("Unexpected init error: %v", err)
@@ -293,7 +293,7 @@ func TestConcurrentSubBroker(t *testing.T) {
 
 func TestConcurrentPubBroker(t *testing.T) {
 	m := newTestRegistry()
-	b := broker.NewBroker(broker.Registry(m))
+	b := NewBroker(broker.Registry(m))
 
 	if err := b.Init(); err != nil {
 		t.Fatalf("Unexpected init error: %v", err)

broker/http/options.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"net/http"
 
-	"github.com/micro/go-micro/v2/broker"
+	"github.com/micro/go-micro/v3/broker"
 )
 
 // Handle registers the handler for the given pattern.

broker/memory/memory.go

@@ -9,10 +9,10 @@ import (
 	"time"
 
 	"github.com/google/uuid"
-	"github.com/micro/go-micro/v2/broker"
-	"github.com/micro/go-micro/v2/logger"
-	maddr "github.com/micro/go-micro/v2/util/addr"
-	mnet "github.com/micro/go-micro/v2/util/net"
+	"github.com/micro/go-micro/v3/broker"
+	"github.com/micro/go-micro/v3/logger"
+	maddr "github.com/micro/go-micro/v3/util/addr"
+	mnet "github.com/micro/go-micro/v3/util/net"
 )
 
 type memoryBroker struct {

broker/memory/memory_test.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/micro/go-micro/v2/broker"
+	"github.com/micro/go-micro/v3/broker"
 )
 
 func TestMemoryBroker(t *testing.T) {

broker/nats/context.go

@@ -3,7 +3,7 @@ package nats
 import (
 	"context"
 
-	"github.com/micro/go-micro/v2/broker"
+	"github.com/micro/go-micro/v3/broker"
 )
 
 // setBrokerOption returns a function to setup a context with given value

broker/nats/nats.go

@@ -7,10 +7,10 @@ import (
 	"strings"
 	"sync"
 
-	"github.com/micro/go-micro/v2/broker"
-	"github.com/micro/go-micro/v2/codec/json"
-	"github.com/micro/go-micro/v2/logger"
-	"github.com/micro/go-micro/v2/registry"
+	"github.com/micro/go-micro/v3/broker"
+	"github.com/micro/go-micro/v3/codec/json"
+	"github.com/micro/go-micro/v3/logger"
+	"github.com/micro/go-micro/v3/registry/mdns"
 	nats "github.com/nats-io/nats.go"
 )
 
@@ -310,7 +310,7 @@ func NewBroker(opts ...broker.Option) broker.Broker {
 		// Default codec
 		Codec:    json.Marshaler{},
 		Context:  context.Background(),
-		Registry: registry.DefaultRegistry,
+		Registry: mdns.NewRegistry(),
 	}
 
 	n := &natsBroker{

broker/nats/nats_test.go

@@ -4,7 +4,7 @@ import (
 	"fmt"
 	"testing"
 
-	"github.com/micro/go-micro/v2/broker"
+	"github.com/micro/go-micro/v3/broker"
 	nats "github.com/nats-io/nats.go"
 )
 

broker/nats/options.go

@@ -1,7 +1,7 @@
 package nats
 
 import (
-	"github.com/micro/go-micro/v2/broker"
+	"github.com/micro/go-micro/v3/broker"
 	nats "github.com/nats-io/nats.go"
 )
 

broker/options.go

@@ -4,8 +4,8 @@ import (
 	"context"
 	"crypto/tls"
 
-	"github.com/micro/go-micro/v2/codec"
-	"github.com/micro/go-micro/v2/registry"
+	"github.com/micro/go-micro/v3/codec"
+	"github.com/micro/go-micro/v3/registry"
 )
 
 type Options struct {

broker/service/options.go

@@ -1,22 +0,0 @@
-package service
-
-import (
-	"context"
-
-	"github.com/micro/go-micro/v2/broker"
-	"github.com/micro/go-micro/v2/client"
-)
-
-type clientKey struct{}
-
-// Client to call broker service
-func Client(c client.Client) broker.Option {
-	return func(o *broker.Options) {
-		if o.Context == nil {
-			o.Context = context.WithValue(context.Background(), clientKey{}, c)
-			return
-		}
-
-		o.Context = context.WithValue(o.Context, clientKey{}, c)
-	}
-}

broker/service/proto/broker.pb.go

@@ -1,374 +0,0 @@
-// Code generated by protoc-gen-go. DO NOT EDIT.
-// source: broker/service/proto/broker.proto
-
-package go_micro_broker
-
-import (
-	context "context"
-	fmt "fmt"
-	proto "github.com/golang/protobuf/proto"
-	grpc "google.golang.org/grpc"
-	codes "google.golang.org/grpc/codes"
-	status "google.golang.org/grpc/status"
-	math "math"
-)
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
-
-type Empty struct {
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
-
-func (m *Empty) Reset()         { *m = Empty{} }
-func (m *Empty) String() string { return proto.CompactTextString(m) }
-func (*Empty) ProtoMessage()    {}
-func (*Empty) Descriptor() ([]byte, []int) {
-	return fileDescriptor_df4d8f04292cf3fe, []int{0}
-}
-
-func (m *Empty) XXX_Unmarshal(b []byte) error {
-	return xxx_messageInfo_Empty.Unmarshal(m, b)
-}
-func (m *Empty) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_Empty.Marshal(b, m, deterministic)
-}
-func (m *Empty) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_Empty.Merge(m, src)
-}
-func (m *Empty) XXX_Size() int {
-	return xxx_messageInfo_Empty.Size(m)
-}
-func (m *Empty) XXX_DiscardUnknown() {
-	xxx_messageInfo_Empty.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_Empty proto.InternalMessageInfo
-
-type PublishRequest struct {
-	Topic                string   `protobuf:"bytes,1,opt,name=topic,proto3" json:"topic,omitempty"`
-	Message              *Message `protobuf:"bytes,2,opt,name=message,proto3" json:"message,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
-
-func (m *PublishRequest) Reset()         { *m = PublishRequest{} }
-func (m *PublishRequest) String() string { return proto.CompactTextString(m) }
-func (*PublishRequest) ProtoMessage()    {}
-func (*PublishRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_df4d8f04292cf3fe, []int{1}
-}
-
-func (m *PublishRequest) XXX_Unmarshal(b []byte) error {
-	return xxx_messageInfo_PublishRequest.Unmarshal(m, b)
-}
-func (m *PublishRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_PublishRequest.Marshal(b, m, deterministic)
-}
-func (m *PublishRequest) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_PublishRequest.Merge(m, src)
-}
-func (m *PublishRequest) XXX_Size() int {
-	return xxx_messageInfo_PublishRequest.Size(m)
-}
-func (m *PublishRequest) XXX_DiscardUnknown() {
-	xxx_messageInfo_PublishRequest.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_PublishRequest proto.InternalMessageInfo
-
-func (m *PublishRequest) GetTopic() string {
-	if m != nil {
-		return m.Topic
-	}
-	return ""
-}
-
-func (m *PublishRequest) GetMessage() *Message {
-	if m != nil {
-		return m.Message
-	}
-	return nil
-}
-
-type SubscribeRequest struct {
-	Topic                string   `protobuf:"bytes,1,opt,name=topic,proto3" json:"topic,omitempty"`
-	Queue                string   `protobuf:"bytes,2,opt,name=queue,proto3" json:"queue,omitempty"`
-	XXX_NoUnkeyedLiteral struct{} `json:"-"`
-	XXX_unrecognized     []byte   `json:"-"`
-	XXX_sizecache        int32    `json:"-"`
-}
-
-func (m *SubscribeRequest) Reset()         { *m = SubscribeRequest{} }
-func (m *SubscribeRequest) String() string { return proto.CompactTextString(m) }
-func (*SubscribeRequest) ProtoMessage()    {}
-func (*SubscribeRequest) Descriptor() ([]byte, []int) {
-	return fileDescriptor_df4d8f04292cf3fe, []int{2}
-}
-
-func (m *SubscribeRequest) XXX_Unmarshal(b []byte) error {
-	return xxx_messageInfo_SubscribeRequest.Unmarshal(m, b)
-}
-func (m *SubscribeRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_SubscribeRequest.Marshal(b, m, deterministic)
-}
-func (m *SubscribeRequest) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_SubscribeRequest.Merge(m, src)
-}
-func (m *SubscribeRequest) XXX_Size() int {
-	return xxx_messageInfo_SubscribeRequest.Size(m)
-}
-func (m *SubscribeRequest) XXX_DiscardUnknown() {
-	xxx_messageInfo_SubscribeRequest.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_SubscribeRequest proto.InternalMessageInfo
-
-func (m *SubscribeRequest) GetTopic() string {
-	if m != nil {
-		return m.Topic
-	}
-	return ""
-}
-
-func (m *SubscribeRequest) GetQueue() string {
-	if m != nil {
-		return m.Queue
-	}
-	return ""
-}
-
-type Message struct {
-	Header               map[string]string `protobuf:"bytes,1,rep,name=header,proto3" json:"header,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
-	Body                 []byte            `protobuf:"bytes,2,opt,name=body,proto3" json:"body,omitempty"`
-	XXX_NoUnkeyedLiteral struct{}          `json:"-"`
-	XXX_unrecognized     []byte            `json:"-"`
-	XXX_sizecache        int32             `json:"-"`
-}
-
-func (m *Message) Reset()         { *m = Message{} }
-func (m *Message) String() string { return proto.CompactTextString(m) }
-func (*Message) ProtoMessage()    {}
-func (*Message) Descriptor() ([]byte, []int) {
-	return fileDescriptor_df4d8f04292cf3fe, []int{3}
-}
-
-func (m *Message) XXX_Unmarshal(b []byte) error {
-	return xxx_messageInfo_Message.Unmarshal(m, b)
-}
-func (m *Message) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
-	return xxx_messageInfo_Message.Marshal(b, m, deterministic)
-}
-func (m *Message) XXX_Merge(src proto.Message) {
-	xxx_messageInfo_Message.Merge(m, src)
-}
-func (m *Message) XXX_Size() int {
-	return xxx_messageInfo_Message.Size(m)
-}
-func (m *Message) XXX_DiscardUnknown() {
-	xxx_messageInfo_Message.DiscardUnknown(m)
-}
-
-var xxx_messageInfo_Message proto.InternalMessageInfo
-
-func (m *Message) GetHeader() map[string]string {
-	if m != nil {
-		return m.Header
-	}
-	return nil
-}
-
-func (m *Message) GetBody() []byte {
-	if m != nil {
-		return m.Body
-	}
-	return nil
-}
-
-func init() {
-	proto.RegisterType((*Empty)(nil), "go.micro.broker.Empty")
-	proto.RegisterType((*PublishRequest)(nil), "go.micro.broker.PublishRequest")
-	proto.RegisterType((*SubscribeRequest)(nil), "go.micro.broker.SubscribeRequest")
-	proto.RegisterType((*Message)(nil), "go.micro.broker.Message")
-	proto.RegisterMapType((map[string]string)(nil), "go.micro.broker.Message.HeaderEntry")
-}
-
-func init() { proto.RegisterFile("broker/service/proto/broker.proto", fileDescriptor_df4d8f04292cf3fe) }
-
-var fileDescriptor_df4d8f04292cf3fe = []byte{
-	// 299 bytes of a gzipped FileDescriptorProto
-	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x7c, 0x51, 0x4d, 0x4b, 0xc3, 0x40,
-	0x14, 0xec, 0xb6, 0xb6, 0xa1, 0xaf, 0xa2, 0x65, 0x29, 0x12, 0x7a, 0x31, 0x0d, 0x1e, 0x72, 0xda,
-	0x48, 0xbc, 0xa8, 0x88, 0x07, 0xb1, 0xe0, 0x41, 0x41, 0xd6, 0x9b, 0xb7, 0x6c, 0xfa, 0x68, 0x43,
-	0x1b, 0x37, 0xdd, 0x4d, 0x0a, 0xf9, 0x23, 0x9e, 0xfc, 0xb1, 0xd2, 0xdd, 0xf8, 0xd5, 0x50, 0x6f,
-	0x6f, 0xde, 0xce, 0xce, 0x1b, 0x66, 0x60, 0x22, 0x94, 0x5c, 0xa2, 0x0a, 0x35, 0xaa, 0x4d, 0x9a,
-	0x60, 0x98, 0x2b, 0x59, 0xc8, 0xd0, 0x2e, 0x99, 0x01, 0xf4, 0x78, 0x2e, 0x59, 0x96, 0x26, 0x4a,
-	0x32, 0xbb, 0xf6, 0x1d, 0xe8, 0x4e, 0xb3, 0xbc, 0xa8, 0xfc, 0x57, 0x38, 0x7a, 0x2e, 0xc5, 0x2a,
-	0xd5, 0x0b, 0x8e, 0xeb, 0x12, 0x75, 0x41, 0x47, 0xd0, 0x2d, 0x64, 0x9e, 0x26, 0x2e, 0xf1, 0x48,
-	0xd0, 0xe7, 0x16, 0xd0, 0x08, 0x9c, 0x0c, 0xb5, 0x8e, 0xe7, 0xe8, 0xb6, 0x3d, 0x12, 0x0c, 0x22,
-	0x97, 0xed, 0x68, 0xb2, 0x27, 0xfb, 0xce, 0xbf, 0x88, 0xfe, 0x2d, 0x0c, 0x5f, 0x4a, 0xa1, 0x13,
-	0x95, 0x0a, 0xfc, 0x5f, 0x7d, 0x04, 0xdd, 0x75, 0x89, 0xa5, 0xd5, 0xee, 0x73, 0x0b, 0xfc, 0x77,
-	0x02, 0x4e, 0x2d, 0x4a, 0x6f, 0xa0, 0xb7, 0xc0, 0x78, 0x86, 0xca, 0x25, 0x5e, 0x27, 0x18, 0x44,
-	0x67, 0xfb, 0xce, 0xb3, 0x07, 0x43, 0x9b, 0xbe, 0x15, 0xaa, 0xe2, 0xf5, 0x1f, 0x4a, 0xe1, 0x40,
-	0xc8, 0x59, 0x65, 0xe4, 0x0f, 0xb9, 0x99, 0xc7, 0x57, 0x30, 0xf8, 0x45, 0xa5, 0x43, 0xe8, 0x2c,
-	0xb1, 0xaa, 0x6d, 0x6d, 0xc7, 0xad, 0xa9, 0x4d, 0xbc, 0xfa, 0x31, 0x65, 0xc0, 0x75, 0xfb, 0x92,
-	0x44, 0x1f, 0x04, 0x7a, 0x77, 0xe6, 0x2a, 0xbd, 0x07, 0xa7, 0xce, 0x8f, 0x9e, 0x36, 0x2c, 0xfd,
-	0x4d, 0x76, 0x7c, 0xd2, 0x20, 0xd8, 0x0e, 0x5a, 0xf4, 0x11, 0xfa, 0xdf, 0x49, 0xd1, 0x49, 0x83,
-	0xb6, 0x9b, 0xe2, 0x78, 0x6f, 0xf8, 0x7e, 0xeb, 0x9c, 0x88, 0x9e, 0x29, 0xfd, 0xe2, 0x33, 0x00,
-	0x00, 0xff, 0xff, 0x19, 0x9f, 0x10, 0x75, 0x19, 0x02, 0x00, 0x00,
-}
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ context.Context
-var _ grpc.ClientConn
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion4
-
-// BrokerClient is the client API for Broker service.
-//
-// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
-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 brokerClient struct {
-	cc *grpc.ClientConn
-}
-
-func NewBrokerClient(cc *grpc.ClientConn) BrokerClient {
-	return &brokerClient{cc}
-}
-
-func (c *brokerClient) Publish(ctx context.Context, in *PublishRequest, opts ...grpc.CallOption) (*Empty, error) {
-	out := new(Empty)
-	err := c.cc.Invoke(ctx, "/go.micro.broker.Broker/Publish", in, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-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], "/go.micro.broker.Broker/Subscribe", opts...)
-	if err != nil {
-		return nil, err
-	}
-	x := &brokerSubscribeClient{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 Broker_SubscribeClient interface {
-	Recv() (*Message, error)
-	grpc.ClientStream
-}
-
-type brokerSubscribeClient struct {
-	grpc.ClientStream
-}
-
-func (x *brokerSubscribeClient) Recv() (*Message, error) {
-	m := new(Message)
-	if err := x.ClientStream.RecvMsg(m); err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-// BrokerServer is the server API for Broker service.
-type BrokerServer interface {
-	Publish(context.Context, *PublishRequest) (*Empty, error)
-	Subscribe(*SubscribeRequest, Broker_SubscribeServer) error
-}
-
-// UnimplementedBrokerServer can be embedded to have forward compatible implementations.
-type UnimplementedBrokerServer struct {
-}
-
-func (*UnimplementedBrokerServer) Publish(ctx context.Context, req *PublishRequest) (*Empty, error) {
-	return nil, status.Errorf(codes.Unimplemented, "method Publish not implemented")
-}
-func (*UnimplementedBrokerServer) Subscribe(req *SubscribeRequest, srv Broker_SubscribeServer) error {
-	return status.Errorf(codes.Unimplemented, "method Subscribe not implemented")
-}
-
-func RegisterBrokerServer(s *grpc.Server, srv BrokerServer) {
-	s.RegisterService(&_Broker_serviceDesc, srv)
-}
-
-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.(BrokerServer).Publish(ctx, in)
-	}
-	info := &grpc.UnaryServerInfo{
-		Server:     srv,
-		FullMethod: "/go.micro.broker.Broker/Publish",
-	}
-	handler := func(ctx context.Context, req interface{}) (interface{}, error) {
-		return srv.(BrokerServer).Publish(ctx, req.(*PublishRequest))
-	}
-	return interceptor(ctx, in, info, handler)
-}
-
-func _Broker_Subscribe_Handler(srv interface{}, stream grpc.ServerStream) error {
-	m := new(SubscribeRequest)
-	if err := stream.RecvMsg(m); err != nil {
-		return err
-	}
-	return srv.(BrokerServer).Subscribe(m, &brokerSubscribeServer{stream})
-}
-
-type Broker_SubscribeServer interface {
-	Send(*Message) error
-	grpc.ServerStream
-}
-
-type brokerSubscribeServer struct {
-	grpc.ServerStream
-}
-
-func (x *brokerSubscribeServer) Send(m *Message) error {
-	return x.ServerStream.SendMsg(m)
-}
-
-var _Broker_serviceDesc = grpc.ServiceDesc{
-	ServiceName: "go.micro.broker.Broker",
-	HandlerType: (*BrokerServer)(nil),
-	Methods: []grpc.MethodDesc{
-		{
-			MethodName: "Publish",
-			Handler:    _Broker_Publish_Handler,
-		},
-	},
-	Streams: []grpc.StreamDesc{
-		{
-			StreamName:    "Subscribe",
-			Handler:       _Broker_Subscribe_Handler,
-			ServerStreams: true,
-		},
-	},
-	Metadata: "broker/service/proto/broker.proto",
-}

broker/service/proto/broker.pb.micro.go

@@ -1,185 +0,0 @@
-// Code generated by protoc-gen-micro. DO NOT EDIT.
-// source: broker/service/proto/broker.proto
-
-package go_micro_broker
-
-import (
-	fmt "fmt"
-	proto "github.com/golang/protobuf/proto"
-	math "math"
-)
-
-import (
-	context "context"
-	api "github.com/micro/go-micro/v2/api"
-	client "github.com/micro/go-micro/v2/client"
-	server "github.com/micro/go-micro/v2/server"
-)
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ = proto.Marshal
-var _ = fmt.Errorf
-var _ = math.Inf
-
-// This is a compile-time assertion to ensure that this generated file
-// is compatible with the proto package it is being compiled against.
-// A compilation error at this line likely means your copy of the
-// proto package needs to be updated.
-const _ = proto.ProtoPackageIsVersion3 // please upgrade the proto package
-
-// Reference imports to suppress errors if they are not otherwise used.
-var _ api.Endpoint
-var _ context.Context
-var _ client.Option
-var _ server.Option
-
-// Api Endpoints for Broker service
-
-func NewBrokerEndpoints() []*api.Endpoint {
-	return []*api.Endpoint{}
-}
-
-// Client API for Broker service
-
-type BrokerService interface {
-	Publish(ctx context.Context, in *PublishRequest, opts ...client.CallOption) (*Empty, error)
-	Subscribe(ctx context.Context, in *SubscribeRequest, opts ...client.CallOption) (Broker_SubscribeService, error)
-}
-
-type brokerService struct {
-	c    client.Client
-	name string
-}
-
-func NewBrokerService(name string, c client.Client) BrokerService {
-	return &brokerService{
-		c:    c,
-		name: name,
-	}
-}
-
-func (c *brokerService) Publish(ctx context.Context, in *PublishRequest, opts ...client.CallOption) (*Empty, error) {
-	req := c.c.NewRequest(c.name, "Broker.Publish", in)
-	out := new(Empty)
-	err := c.c.Call(ctx, req, out, opts...)
-	if err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-func (c *brokerService) Subscribe(ctx context.Context, in *SubscribeRequest, opts ...client.CallOption) (Broker_SubscribeService, error) {
-	req := c.c.NewRequest(c.name, "Broker.Subscribe", &SubscribeRequest{})
-	stream, err := c.c.Stream(ctx, req, opts...)
-	if err != nil {
-		return nil, err
-	}
-	if err := stream.Send(in); err != nil {
-		return nil, err
-	}
-	return &brokerServiceSubscribe{stream}, nil
-}
-
-type Broker_SubscribeService interface {
-	Context() context.Context
-	SendMsg(interface{}) error
-	RecvMsg(interface{}) error
-	Close() error
-	Recv() (*Message, error)
-}
-
-type brokerServiceSubscribe struct {
-	stream 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 := new(Message)
-	err := x.stream.Recv(m)
-	if err != nil {
-		return nil, err
-	}
-	return m, nil
-}
-
-// Server API for Broker service
-
-type BrokerHandler interface {
-	Publish(context.Context, *PublishRequest, *Empty) error
-	Subscribe(context.Context, *SubscribeRequest, Broker_SubscribeStream) error
-}
-
-func RegisterBrokerHandler(s server.Server, hdlr BrokerHandler, opts ...server.HandlerOption) error {
-	type broker interface {
-		Publish(ctx context.Context, in *PublishRequest, out *Empty) error
-		Subscribe(ctx context.Context, stream server.Stream) error
-	}
-	type Broker struct {
-		broker
-	}
-	h := &brokerHandler{hdlr}
-	return s.Handle(s.NewHandler(&Broker{h}, opts...))
-}
-
-type brokerHandler struct {
-	BrokerHandler
-}
-
-func (h *brokerHandler) Publish(ctx context.Context, in *PublishRequest, out *Empty) error {
-	return h.BrokerHandler.Publish(ctx, in, out)
-}
-
-func (h *brokerHandler) Subscribe(ctx context.Context, stream server.Stream) error {
-	m := new(SubscribeRequest)
-	if err := stream.Recv(m); err != nil {
-		return err
-	}
-	return h.BrokerHandler.Subscribe(ctx, m, &brokerSubscribeStream{stream})
-}
-
-type Broker_SubscribeStream interface {
-	Context() context.Context
-	SendMsg(interface{}) error
-	RecvMsg(interface{}) error
-	Close() error
-	Send(*Message) error
-}
-
-type brokerSubscribeStream struct {
-	stream 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)
-}

broker/service/proto/broker.proto

@@ -1,25 +0,0 @@
-syntax = "proto3";
-
-package go.micro.broker;
-
-service Broker {
-	rpc Publish(PublishRequest) returns (Empty) {};
-	rpc Subscribe(SubscribeRequest) returns (stream Message) {};
-}
-
-message Empty {}
-
-message PublishRequest {
-	string topic = 1;
-	Message message = 2;
-}
-
-message SubscribeRequest {
-	string topic = 1;
-	string queue = 2;
-}
-
-message Message {
-	map<string,string> header = 1;
-	bytes body = 2;
-}

broker/service/service.go

@@ -1,152 +0,0 @@
-// Package service provides the broker service client
-package service
-
-import (
-	"context"
-	"time"
-
-	"github.com/micro/go-micro/v2/broker"
-	pb "github.com/micro/go-micro/v2/broker/service/proto"
-	"github.com/micro/go-micro/v2/client"
-	"github.com/micro/go-micro/v2/logger"
-)
-
-type serviceBroker struct {
-	Addrs   []string
-	Client  pb.BrokerService
-	options broker.Options
-}
-
-var (
-	DefaultName = "go.micro.broker"
-)
-
-func (b *serviceBroker) Address() string {
-	return b.Addrs[0]
-}
-
-func (b *serviceBroker) Connect() error {
-	return nil
-}
-
-func (b *serviceBroker) Disconnect() error {
-	return nil
-}
-
-func (b *serviceBroker) Init(opts ...broker.Option) error {
-	for _, o := range opts {
-		o(&b.options)
-	}
-	return nil
-}
-
-func (b *serviceBroker) Options() broker.Options {
-	return b.options
-}
-
-func (b *serviceBroker) Publish(topic string, msg *broker.Message, opts ...broker.PublishOption) error {
-	if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-		logger.Debugf("Publishing to topic %s broker %v", topic, b.Addrs)
-	}
-	_, err := b.Client.Publish(context.TODO(), &pb.PublishRequest{
-		Topic: topic,
-		Message: &pb.Message{
-			Header: msg.Header,
-			Body:   msg.Body,
-		},
-	}, client.WithAddress(b.Addrs...))
-	return err
-}
-
-func (b *serviceBroker) Subscribe(topic string, handler broker.Handler, opts ...broker.SubscribeOption) (broker.Subscriber, error) {
-	var options broker.SubscribeOptions
-	for _, o := range opts {
-		o(&options)
-	}
-	if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-		logger.Debugf("Subscribing to topic %s queue %s broker %v", topic, options.Queue, b.Addrs)
-	}
-	stream, err := b.Client.Subscribe(context.TODO(), &pb.SubscribeRequest{
-		Topic: topic,
-		Queue: options.Queue,
-	}, client.WithAddress(b.Addrs...), client.WithRequestTimeout(time.Hour))
-	if err != nil {
-		return nil, err
-	}
-
-	sub := &serviceSub{
-		topic:   topic,
-		queue:   options.Queue,
-		handler: handler,
-		stream:  stream,
-		closed:  make(chan bool),
-		options: options,
-	}
-
-	go func() {
-		for {
-			select {
-			case <-sub.closed:
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-					logger.Debugf("Unsubscribed from topic %s", topic)
-				}
-				return
-			default:
-				if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-					// run the subscriber
-					logger.Debugf("Streaming from broker %v to topic [%s] queue [%s]", b.Addrs, topic, options.Queue)
-				}
-				if err := sub.run(); err != nil {
-					if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-						logger.Debugf("Resubscribing to topic %s broker %v", topic, b.Addrs)
-					}
-					stream, err := b.Client.Subscribe(context.TODO(), &pb.SubscribeRequest{
-						Topic: topic,
-						Queue: options.Queue,
-					}, client.WithAddress(b.Addrs...), client.WithRequestTimeout(time.Hour))
-					if err != nil {
-						if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-							logger.Debugf("Failed to resubscribe to topic %s: %v", topic, err)
-						}
-						time.Sleep(time.Second)
-						continue
-					}
-					// new stream
-					sub.stream = stream
-				}
-			}
-		}
-	}()
-
-	return sub, nil
-}
-
-func (b *serviceBroker) String() string {
-	return "service"
-}
-
-func NewBroker(opts ...broker.Option) broker.Broker {
-	var options broker.Options
-	for _, o := range opts {
-		o(&options)
-	}
-
-	addrs := options.Addrs
-	if len(addrs) == 0 {
-		addrs = []string{"127.0.0.1:8001"}
-	}
-
-	cli := client.DefaultClient
-
-	// get options client from the context. We set this in the context to prevent an import loop, as
-	// the client depends on the broker
-	if c, ok := options.Context.Value(clientKey{}).(client.Client); ok {
-		cli = c
-	}
-
-	return &serviceBroker{
-		Addrs:   addrs,
-		Client:  pb.NewBrokerService(DefaultName, cli),
-		options: options,
-	}
-}

broker/service/subscriber.go

@@ -1,108 +0,0 @@
-package service
-
-import (
-	"github.com/micro/go-micro/v2/broker"
-	pb "github.com/micro/go-micro/v2/broker/service/proto"
-	"github.com/micro/go-micro/v2/logger"
-)
-
-type serviceSub struct {
-	topic   string
-	queue   string
-	handler broker.Handler
-	stream  pb.Broker_SubscribeService
-	closed  chan bool
-	options broker.SubscribeOptions
-}
-
-type serviceEvent struct {
-	topic   string
-	err     error
-	message *broker.Message
-}
-
-func (s *serviceEvent) Topic() string {
-	return s.topic
-}
-
-func (s *serviceEvent) Message() *broker.Message {
-	return s.message
-}
-
-func (s *serviceEvent) Ack() error {
-	return nil
-}
-
-func (s *serviceEvent) Error() error {
-	return s.err
-}
-
-func (s *serviceSub) isClosed() bool {
-	select {
-	case <-s.closed:
-		return true
-	default:
-		return false
-	}
-}
-
-func (s *serviceSub) run() error {
-	exit := make(chan bool)
-	go func() {
-		select {
-		case <-exit:
-		case <-s.closed:
-		}
-
-		// close the stream
-		s.stream.Close()
-	}()
-
-	for {
-		// TODO: do not fail silently
-		msg, err := s.stream.Recv()
-		if err != nil {
-			if logger.V(logger.DebugLevel, logger.DefaultLogger) {
-				logger.Debugf("Streaming error for subcription to topic %s: %v", s.Topic(), err)
-			}
-
-			// close the exit channel
-			close(exit)
-
-			// don't return an error if we unsubscribed
-			if s.isClosed() {
-				return nil
-			}
-
-			// return stream error
-			return err
-		}
-
-		p := &serviceEvent{
-			topic: s.topic,
-			message: &broker.Message{
-				Header: msg.Header,
-				Body:   msg.Body,
-			},
-		}
-		p.err = s.handler(p)
-	}
-}
-
-func (s *serviceSub) Options() broker.SubscribeOptions {
-	return s.options
-}
-
-func (s *serviceSub) Topic() string {
-	return s.topic
-}
-
-func (s *serviceSub) Unsubscribe() error {
-	select {
-	case <-s.closed:
-		return nil
-	default:
-		close(s.closed)
-	}
-	return nil
-}

cache/memcache/memcache.go

@@ -5,7 +5,7 @@ import (
 	"encoding/json"
 
 	"github.com/bradfitz/gomemcache/memcache"
-	"github.com/micro/go-micro/v2/cache"
+	"github.com/micro/go-micro/v3/cache"
 )
 
 type memcacheCache struct {

cache/memory/memory.go

@@ -4,8 +4,8 @@ package memory
 import (
 	"sync"
 
-	"github.com/micro/go-micro/v2/cache"
-	"github.com/micro/go-micro/v2/errors"
+	"github.com/micro/go-micro/v3/cache"
+	"github.com/micro/go-micro/v3/errors"
 )
 
 type memoryCache struct {

client/backoff.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"time"
 
-	"github.com/micro/go-micro/v2/util/backoff"
+	"github.com/micro/go-micro/v3/util/backoff"
 )
 
 type BackoffFunc func(ctx context.Context, req Request, attempts int) (time.Duration, error)

client/backoff_test.go

@@ -16,10 +16,13 @@ func TestBackoff(t *testing.T) {
 		7900 * time.Millisecond,
 	}
 
-	c := NewClient()
+	r := &testRequest{
+		service: "test",
+		method:  "test",
+	}
 
 	for i := 0; i < 5; i++ {
-		d, err := exponentialBackoff(context.TODO(), c.NewRequest("test", "test", nil), i)
+		d, err := exponentialBackoff(context.TODO(), r, i)
 		if err != nil {
 			t.Fatal(err)
 		}

client/cache.go

@@ -7,7 +7,7 @@ import (
 	"hash/fnv"
 	"time"
 
-	"github.com/micro/go-micro/v2/metadata"
+	"github.com/micro/go-micro/v3/metadata"
 	cache "github.com/patrickmn/go-cache"
 )
 
@@ -24,12 +24,12 @@ type Cache struct {
 }
 
 // Get a response from the cache
-func (c *Cache) Get(ctx context.Context, req *Request) (interface{}, bool) {
+func (c *Cache) Get(ctx context.Context, req Request) (interface{}, bool) {
 	return c.cache.Get(key(ctx, req))
 }
 
 // Set a response in the cache
-func (c *Cache) Set(ctx context.Context, req *Request, rsp interface{}, expiry time.Duration) {
+func (c *Cache) Set(ctx context.Context, req Request, rsp interface{}, expiry time.Duration) {
 	c.cache.Set(key(ctx, req), rsp, expiry)
 }
 
@@ -47,16 +47,16 @@ func (c *Cache) List() map[string]string {
 }
 
 // key returns a hash for the context and request
-func key(ctx context.Context, req *Request) string {
+func key(ctx context.Context, req Request) string {
 	ns, _ := metadata.Get(ctx, "Micro-Namespace")
 
 	bytes, _ := json.Marshal(map[string]interface{}{
 		"namespace": ns,
 		"request": map[string]interface{}{
-			"service":  (*req).Service(),
-			"endpoint": (*req).Endpoint(),
-			"method":   (*req).Method(),
-			"body":     (*req).Body(),
+			"service":  req.Service(),
+			"endpoint": req.Endpoint(),
+			"method":   req.Method(),
+			"body":     req.Body(),
 		},
 	})
 

client/cache_test.go

@@ -5,15 +5,15 @@ import (
 	"testing"
 	"time"
 
-	"github.com/micro/go-micro/v2/metadata"
+	"github.com/micro/go-micro/v3/metadata"
 )
 
 func TestCache(t *testing.T) {
 	ctx := context.TODO()
-	req := NewRequest("go.micro.service.foo", "Foo.Bar", nil)
+	req := &testRequest{service: "go.micro.service.foo", method: "Foo.Bar"}
 
 	t.Run("CacheMiss", func(t *testing.T) {
-		if _, ok := NewCache().Get(ctx, &req); ok {
+		if _, ok := NewCache().Get(ctx, req); ok {
 			t.Errorf("Expected to get no result from Get")
 		}
 	})
@@ -22,9 +22,9 @@ func TestCache(t *testing.T) {
 		c := NewCache()
 
 		rsp := "theresponse"
-		c.Set(ctx, &req, rsp, time.Minute)
+		c.Set(ctx, req, rsp, time.Minute)
 
-		if res, ok := c.Get(ctx, &req); !ok {
+		if res, ok := c.Get(ctx, req); !ok {
 			t.Errorf("Expected a result, got nothing")
 		} else if res != rsp {
 			t.Errorf("Expected '%v' result, got '%v'", rsp, res)
@@ -34,21 +34,22 @@ func TestCache(t *testing.T) {
 
 func TestCacheKey(t *testing.T) {
 	ctx := context.TODO()
-	req1 := NewRequest("go.micro.service.foo", "Foo.Bar", nil)
-	req2 := NewRequest("go.micro.service.foo", "Foo.Baz", nil)
-	req3 := NewRequest("go.micro.service.foo", "Foo.Baz", "customquery")
+
+	req1 := &testRequest{service: "go.micro.service.foo", method: "Foo.Bar"}
+	req2 := &testRequest{service: "go.micro.service.foo", method: "Foo.Baz"}
+	req3 := &testRequest{service: "go.micro.service.foo", method: "Foo.Bar", body: "customquery"}
 
 	t.Run("IdenticalRequests", func(t *testing.T) {
-		key1 := key(ctx, &req1)
-		key2 := key(ctx, &req1)
+		key1 := key(ctx, req1)
+		key2 := key(ctx, req1)
 		if key1 != key2 {
 			t.Errorf("Expected the keys to match for identical requests and context")
 		}
 	})
 
 	t.Run("DifferentRequestEndpoints", func(t *testing.T) {
-		key1 := key(ctx, &req1)
-		key2 := key(ctx, &req2)
+		key1 := key(ctx, req1)
+		key2 := key(ctx, req2)
 
 		if key1 == key2 {
 			t.Errorf("Expected the keys to differ for different request endpoints")
@@ -56,8 +57,8 @@ func TestCacheKey(t *testing.T) {
 	})
 
 	t.Run("DifferentRequestBody", func(t *testing.T) {
-		key1 := key(ctx, &req2)
-		key2 := key(ctx, &req3)
+		key1 := key(ctx, req2)
+		key2 := key(ctx, req3)
 
 		if key1 == key2 {
 			t.Errorf("Expected the keys to differ for different request bodies")
@@ -66,8 +67,8 @@ func TestCacheKey(t *testing.T) {
 
 	t.Run("DifferentMetadata", func(t *testing.T) {
 		mdCtx := metadata.Set(context.TODO(), "Micro-Namespace", "bar")
-		key1 := key(mdCtx, &req1)
-		key2 := key(ctx, &req1)
+		key1 := key(mdCtx, req1)
+		key2 := key(ctx, req1)
 
 		if key1 == key2 {
 			t.Errorf("Expected the keys to differ for different metadata")

client/client.go

@@ -5,7 +5,7 @@ import (
 	"context"
 	"time"
 
-	"github.com/micro/go-micro/v2/codec"
+	"github.com/micro/go-micro/v3/codec"
 )
 
 // Client is the interface used to make requests to services.
@@ -91,8 +91,6 @@ type MessageOption func(*MessageOptions)
 type RequestOption func(*RequestOptions)
 
 var (
-	// DefaultClient is a default client to use out of the box
-	DefaultClient Client = newRpcClient()
 	// DefaultBackoff is the default backoff function for retries
 	DefaultBackoff = exponentialBackoff
 	// DefaultRetry is the default check-for-retry function for retries
@@ -105,39 +103,4 @@ var (
 	DefaultPoolSize = 100
 	// DefaultPoolTTL sets the connection pool ttl
 	DefaultPoolTTL = time.Minute
-
-	// NewClient returns a new client
-	NewClient func(...Option) Client = newRpcClient
 )
-
-// Makes a synchronous call to a service using the default client
-func Call(ctx context.Context, request Request, response interface{}, opts ...CallOption) error {
-	return DefaultClient.Call(ctx, request, response, opts...)
-}
-
-// Publishes a publication using the default client. Using the underlying broker
-// set within the options.
-func Publish(ctx context.Context, msg Message, opts ...PublishOption) error {
-	return DefaultClient.Publish(ctx, msg, opts...)
-}
-
-// Creates a new message using the default client
-func NewMessage(topic string, payload interface{}, opts ...MessageOption) Message {
-	return DefaultClient.NewMessage(topic, payload, opts...)
-}
-
-// Creates a new request using the default client. Content Type will
-// be set to the default within options and use the appropriate codec
-func NewRequest(service, endpoint string, request interface{}, reqOpts ...RequestOption) Request {
-	return DefaultClient.NewRequest(service, endpoint, request, reqOpts...)
-}
-
-// Creates a streaming connection with a service and returns responses on the
-// channel passed in. It's up to the user to close the streamer.
-func NewStream(ctx context.Context, request Request, opts ...CallOption) (Stream, error) {
-	return DefaultClient.Stream(ctx, request, opts...)
-}
-
-func String() string {
-	return DefaultClient.String()
-}

client/grpc/codec.go

@@ -9,8 +9,8 @@ import (
 
 	"github.com/golang/protobuf/jsonpb"
 	"github.com/golang/protobuf/proto"
-	"github.com/micro/go-micro/v2/codec"
-	"github.com/micro/go-micro/v2/codec/bytes"
+	"github.com/micro/go-micro/v3/codec"
+	"github.com/micro/go-micro/v3/codec/bytes"
 	"github.com/oxtoacart/bpool"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/encoding"

client/grpc/error.go

@@ -1,7 +1,7 @@
 package grpc
 
 import (
-	"github.com/micro/go-micro/v2/errors"
+	"github.com/micro/go-micro/v3/errors"
 	"google.golang.org/grpc/status"
 )
 

client/grpc/grpc.go

@@ -11,12 +11,12 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/micro/go-micro/v2/broker"
-	"github.com/micro/go-micro/v2/client"
-	raw "github.com/micro/go-micro/v2/codec/bytes"
-	"github.com/micro/go-micro/v2/errors"
-	"github.com/micro/go-micro/v2/metadata"
-	"github.com/micro/go-micro/v2/registry"
+	"github.com/micro/go-micro/v3/broker"
+	"github.com/micro/go-micro/v3/client"
+	raw "github.com/micro/go-micro/v3/codec/bytes"
+	"github.com/micro/go-micro/v3/errors"
+	"github.com/micro/go-micro/v3/metadata"
+	"github.com/micro/go-micro/v3/registry"
 
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/credentials"

client/grpc/grpc_test.go

@@ -5,11 +5,12 @@ import (
 	"net"
 	"testing"
 
-	"github.com/micro/go-micro/v2/client"
-	"github.com/micro/go-micro/v2/errors"
-	"github.com/micro/go-micro/v2/registry"
-	"github.com/micro/go-micro/v2/registry/memory"
-	"github.com/micro/go-micro/v2/router"
+	"github.com/micro/go-micro/v3/client"
+	"github.com/micro/go-micro/v3/errors"
+	"github.com/micro/go-micro/v3/registry"
+	"github.com/micro/go-micro/v3/registry/memory"
+	"github.com/micro/go-micro/v3/router"
+	regRouter "github.com/micro/go-micro/v3/router/registry"
 	pgrpc "google.golang.org/grpc"
 	pb "google.golang.org/grpc/examples/helloworld/helloworld"
 )
@@ -57,7 +58,7 @@ func TestGRPCClient(t *testing.T) {
 	})
 
 	// create router
-	rtr := router.NewRouter(router.Registry(r))
+	rtr := regRouter.NewRouter(router.Registry(r))
 
 	// create client
 	c := NewClient(client.Router(rtr))

client/grpc/message.go

@@ -1,7 +1,7 @@
 package grpc
 
 import (
-	"github.com/micro/go-micro/v2/client"
+	"github.com/micro/go-micro/v3/client"
 )
 
 type grpcEvent struct {

client/grpc/options.go

@@ -5,7 +5,7 @@ import (
 	"context"
 	"crypto/tls"
 
-	"github.com/micro/go-micro/v2/client"
+	"github.com/micro/go-micro/v3/client"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/encoding"
 )

client/grpc/request.go

@@ -4,8 +4,8 @@ import (
 	"fmt"
 	"strings"
 
-	"github.com/micro/go-micro/v2/client"
-	"github.com/micro/go-micro/v2/codec"
+	"github.com/micro/go-micro/v3/client"
+	"github.com/micro/go-micro/v3/codec"
 )
 
 type grpcRequest struct {

client/grpc/response.go

@@ -3,8 +3,8 @@ package grpc
 import (
 	"strings"
 
-	"github.com/micro/go-micro/v2/codec"
-	"github.com/micro/go-micro/v2/codec/bytes"
+	"github.com/micro/go-micro/v3/codec"
+	"github.com/micro/go-micro/v3/codec/bytes"
 	"google.golang.org/grpc"
 	"google.golang.org/grpc/encoding"
 )

client/grpc/stream.go

@@ -5,7 +5,7 @@ import (
 	"io"
 	"sync"
 
-	"github.com/micro/go-micro/v2/client"
+	"github.com/micro/go-micro/v3/client"
 	"google.golang.org/grpc"
 )
 

client/mucp/common_test.go

@@ -1,7 +1,7 @@
-package client
+package mucp
 
 import (
-	"github.com/micro/go-micro/v2/registry"
+	"github.com/micro/go-micro/v3/registry"
 )
 
 var (

client/mucp/mucp.go

@@ -2,10 +2,623 @@
 package mucp
 
 import (
-	"github.com/micro/go-micro/v2/client"
+	"context"
+	"fmt"
+	"sync/atomic"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/micro/go-micro/v3/broker"
+	"github.com/micro/go-micro/v3/client"
+	"github.com/micro/go-micro/v3/codec"
+	raw "github.com/micro/go-micro/v3/codec/bytes"
+	"github.com/micro/go-micro/v3/errors"
+	"github.com/micro/go-micro/v3/metadata"
+	"github.com/micro/go-micro/v3/registry"
+	"github.com/micro/go-micro/v3/transport"
+	"github.com/micro/go-micro/v3/util/buf"
+	"github.com/micro/go-micro/v3/util/net"
+	"github.com/micro/go-micro/v3/util/pool"
 )
 
 // NewClient returns a new micro client interface
 func NewClient(opts ...client.Option) client.Client {
-	return client.NewClient(opts...)
+	return newClient(opts...)
+}
+
+type rpcClient struct {
+	once atomic.Value
+	opts client.Options
+	pool pool.Pool
+	seq  uint64
+}
+
+func newClient(opt ...client.Option) client.Client {
+	opts := client.NewOptions(opt...)
+
+	p := pool.NewPool(
+		pool.Size(opts.PoolSize),
+		pool.TTL(opts.PoolTTL),
+		pool.Transport(opts.Transport),
+	)
+
+	rc := &rpcClient{
+		opts: opts,
+		pool: p,
+		seq:  0,
+	}
+	rc.once.Store(false)
+
+	c := client.Client(rc)
+
+	// wrap in reverse
+	for i := len(opts.Wrappers); i > 0; i-- {
+		c = opts.Wrappers[i-1](c)
+	}
+
+	return c
+}
+
+func (r *rpcClient) newCodec(contentType string) (codec.NewCodec, error) {
+	if c, ok := r.opts.Codecs[contentType]; ok {
+		return c, nil
+	}
+	if cf, ok := DefaultCodecs[contentType]; ok {
+		return cf, nil
+	}
+	return nil, fmt.Errorf("Unsupported Content-Type: %s", contentType)
+}
+
+func (r *rpcClient) call(ctx context.Context, node *registry.Node, req client.Request, resp interface{}, opts client.CallOptions) error {
+	msg := &transport.Message{
+		Header: make(map[string]string),
+	}
+
+	md, ok := metadata.FromContext(ctx)
+	if ok {
+		for k, v := range md {
+			// don't copy Micro-Topic header, that used for pub/sub
+			// this fix case then client uses the same context that received in subscriber
+			if k == "Micro-Topic" {
+				continue
+			}
+			msg.Header[k] = v
+		}
+	}
+
+	// set timeout in nanoseconds
+	msg.Header["Timeout"] = fmt.Sprintf("%d", opts.RequestTimeout)
+	// set the content type for the request
+	msg.Header["Content-Type"] = req.ContentType()
+	// set the accept header
+	msg.Header["Accept"] = req.ContentType()
+
+	// setup old protocol
+	cf := setupProtocol(msg, node)
+
+	// no codec specified
+	if cf == nil {
+		var err error
+		cf, err = r.newCodec(req.ContentType())
+		if err != nil {
+			return errors.InternalServerError("go.micro.client", err.Error())
+		}
+	}
+
+	dOpts := []transport.DialOption{
+		transport.WithStream(),
+	}
+
+	if opts.DialTimeout >= 0 {
+		dOpts = append(dOpts, transport.WithTimeout(opts.DialTimeout))
+	}
+
+	c, err := r.pool.Get(node.Address, dOpts...)
+	if err != nil {
+		return errors.InternalServerError("go.micro.client", "connection error: %v", err)
+	}
+
+	seq := atomic.AddUint64(&r.seq, 1) - 1
+	codec := newRpcCodec(msg, c, cf, "")
+
+	rsp := &rpcResponse{
+		socket: c,
+		codec:  codec,
+	}
+
+	stream := &rpcStream{
+		id:       fmt.Sprintf("%v", seq),
+		context:  ctx,
+		request:  req,
+		response: rsp,
+		codec:    codec,
+		closed:   make(chan bool),
+		release:  func(err error) { r.pool.Release(c, err) },
+		sendEOS:  false,
+	}
+	// close the stream on exiting this function
+	defer stream.Close()
+
+	// wait for error response
+	ch := make(chan error, 1)
+
+	go func() {
+		defer func() {
+			if r := recover(); r != nil {
+				ch <- errors.InternalServerError("go.micro.client", "panic recovered: %v", r)
+			}
+		}()
+
+		// send request
+		if err := stream.Send(req.Body()); err != nil {
+			ch <- err
+			return
+		}
+
+		// recv request
+		if err := stream.Recv(resp); err != nil {
+			ch <- err
+			return
+		}
+
+		// success
+		ch <- nil
+	}()
+
+	var grr error
+
+	select {
+	case err := <-ch:
+		return err
+	case <-ctx.Done():
+		grr = errors.Timeout("go.micro.client", fmt.Sprintf("%v", ctx.Err()))
+	}
+
+	// set the stream error
+	if grr != nil {
+		stream.Lock()
+		stream.err = grr
+		stream.Unlock()
+
+		return grr
+	}
+
+	return nil
+}
+
+func (r *rpcClient) stream(ctx context.Context, node *registry.Node, req client.Request, opts client.CallOptions) (client.Stream, error) {
+	msg := &transport.Message{
+		Header: make(map[string]string),
+	}
+
+	md, ok := metadata.FromContext(ctx)
+	if ok {
+		for k, v := range md {
+			msg.Header[k] = v
+		}
+	}
+
+	// set timeout in nanoseconds
+	if opts.StreamTimeout > time.Duration(0) {
+		msg.Header["Timeout"] = fmt.Sprintf("%d", opts.StreamTimeout)
+	}
+	// set the content type for the request
+	msg.Header["Content-Type"] = req.ContentType()
+	// set the accept header
+	msg.Header["Accept"] = req.ContentType()
+
+	// set old codecs
+	cf := setupProtocol(msg, node)
+
+	// no codec specified
+	if cf == nil {
+		var err error
+		cf, err = r.newCodec(req.ContentType())
+		if err != nil {
+			return nil, errors.InternalServerError("go.micro.client", err.Error())
+		}
+	}
+
+	dOpts := []transport.DialOption{
+		transport.WithStream(),
+	}
+
+	if opts.DialTimeout >= 0 {
+		dOpts = append(dOpts, transport.WithTimeout(opts.DialTimeout))
+	}
+
+	c, err := r.opts.Transport.Dial(node.Address, dOpts...)
+	if err != nil {
+		return nil, errors.InternalServerError("go.micro.client", "connection error: %v", err)
+	}
+
+	// increment the sequence number
+	seq := atomic.AddUint64(&r.seq, 1) - 1
+	id := fmt.Sprintf("%v", seq)
+
+	// create codec with stream id
+	codec := newRpcCodec(msg, c, cf, id)
+
+	rsp := &rpcResponse{
+		socket: c,
+		codec:  codec,
+	}
+
+	// set request codec
+	if r, ok := req.(*rpcRequest); ok {
+		r.codec = codec
+	}
+
+	stream := &rpcStream{
+		id:       id,
+		context:  ctx,
+		request:  req,
+		response: rsp,
+		codec:    codec,
+		// used to close the stream
+		closed: make(chan bool),
+		// signal the end of stream,
+		sendEOS: true,
+		// release func
+		release: func(err error) { c.Close() },
+	}
+
+	// wait for error response
+	ch := make(chan error, 1)
+
+	go func() {
+		// send the first message
+		ch <- stream.Send(req.Body())
+	}()
+
+	var grr error
+
+	select {
+	case err := <-ch:
+		grr = err
+	case <-ctx.Done():
+		grr = errors.Timeout("go.micro.client", fmt.Sprintf("%v", ctx.Err()))
+	}
+
+	if grr != nil {
+		// set the error
+		stream.Lock()
+		stream.err = grr
+		stream.Unlock()
+
+		// close the stream
+		stream.Close()
+		return nil, grr
+	}
+
+	return stream, nil
+}
+
+func (r *rpcClient) Init(opts ...client.Option) error {
+	size := r.opts.PoolSize
+	ttl := r.opts.PoolTTL
+	tr := r.opts.Transport
+
+	for _, o := range opts {
+		o(&r.opts)
+	}
+
+	// update pool configuration if the options changed
+	if size != r.opts.PoolSize || ttl != r.opts.PoolTTL || tr != r.opts.Transport {
+		// close existing pool
+		r.pool.Close()
+		// create new pool
+		r.pool = pool.NewPool(
+			pool.Size(r.opts.PoolSize),
+			pool.TTL(r.opts.PoolTTL),
+			pool.Transport(r.opts.Transport),
+		)
+	}
+
+	return nil
+}
+
+func (r *rpcClient) Options() client.Options {
+	return r.opts
+}
+
+func (r *rpcClient) Call(ctx context.Context, request client.Request, response interface{}, opts ...client.CallOption) error {
+	// make a copy of call opts
+	callOpts := r.opts.CallOptions
+	for _, opt := range opts {
+		opt(&callOpts)
+	}
+
+	// check if we already have a deadline
+	if d, ok := ctx.Deadline(); !ok {
+		// no deadline so we create a new one
+		var cancel context.CancelFunc
+		ctx, cancel = context.WithTimeout(ctx, callOpts.RequestTimeout)
+		defer cancel()
+	} else {
+		// got a deadline so no need to setup context
+		// but we need to set the timeout we pass along
+		remaining := d.Sub(time.Now())
+		client.WithRequestTimeout(remaining)(&callOpts)
+	}
+
+	// should we noop right here?
+	select {
+	case <-ctx.Done():
+		return errors.Timeout("go.micro.client", fmt.Sprintf("%v", ctx.Err()))
+	default:
+	}
+
+	// make copy of call method
+	rcall := r.call
+
+	// wrap the call in reverse
+	for i := len(callOpts.CallWrappers); i > 0; i-- {
+		rcall = callOpts.CallWrappers[i-1](rcall)
+	}
+
+	// return errors.New("go.micro.client", "request timeout", 408)
+	call := func(i int) error {
+		// call backoff first. Someone may want an initial start delay
+		t, err := callOpts.Backoff(ctx, request, i)
+		if err != nil {
+			return errors.InternalServerError("go.micro.client", "backoff error: %v", err.Error())
+		}
+
+		// only sleep if greater than 0
+		if t.Seconds() > 0 {
+			time.Sleep(t)
+		}
+
+		// use the router passed as a call option, or fallback to the rpc clients router
+		if callOpts.Router == nil {
+			callOpts.Router = r.opts.Router
+		}
+		// use the selector passed as a call option, or fallback to the rpc clients selector
+		if callOpts.Selector == nil {
+			callOpts.Selector = r.opts.Selector
+		}
+
+		// lookup the route to send the request via
+		route, err := client.LookupRoute(request, callOpts)
+		if err != nil {
+			return err
+		}
+
+		// pass a node to enable backwards comparability as changing the
+		// call func would be a breaking change.
+		// todo v3: change the call func to accept a route
+		node := &registry.Node{Address: route.Address, Metadata: route.Metadata}
+
+		// make the call
+		err = rcall(ctx, node, request, response, callOpts)
+
+		// record the result of the call to inform future routing decisions
+		r.opts.Selector.Record(*route, err)
+
+		return err
+	}
+
+	// get the retries
+	retries := callOpts.Retries
+
+	// disable retries when using a proxy
+	if _, _, ok := net.Proxy(request.Service(), callOpts.Address); ok {
+		retries = 0
+	}
+
+	ch := make(chan error, retries+1)
+	var gerr error
+
+	for i := 0; i <= retries; i++ {
+		go func(i int) {
+			ch <- call(i)
+		}(i)
+
+		select {
+		case <-ctx.Done():
+			return errors.Timeout("go.micro.client", fmt.Sprintf("call timeout: %v", ctx.Err()))
+		case err := <-ch:
+			// if the call succeeded lets bail early
+			if err == nil {
+				return nil
+			}
+
+			retry, rerr := callOpts.Retry(ctx, request, i, err)
+			if rerr != nil {
+				return rerr
+			}
+
+			if !retry {
+				return err
+			}
+
+			gerr = err
+		}
+	}
+
+	return gerr
+}
+
+func (r *rpcClient) Stream(ctx context.Context, request client.Request, opts ...client.CallOption) (client.Stream, error) {
+	// make a copy of call opts
+	callOpts := r.opts.CallOptions
+	for _, opt := range opts {
+		opt(&callOpts)
+	}
+
+	// should we noop right here?
+	select {
+	case <-ctx.Done():
+		return nil, errors.Timeout("go.micro.client", fmt.Sprintf("%v", ctx.Err()))
+	default:
+	}
+
+	call := func(i int) (client.Stream, error) {
+		// call backoff first. Someone may want an initial start delay
+		t, err := callOpts.Backoff(ctx, request, i)
+		if err != nil {
+			return nil, errors.InternalServerError("go.micro.client", "backoff error: %v", err.Error())
+		}
+
+		// only sleep if greater than 0
+		if t.Seconds() > 0 {
+			time.Sleep(t)
+		}
+
+		// use the router passed as a call option, or fallback to the rpc clients router
+		if callOpts.Router == nil {
+			callOpts.Router = r.opts.Router
+		}
+		// use the selector passed as a call option, or fallback to the rpc clients selector
+		if callOpts.Selector == nil {
+			callOpts.Selector = r.opts.Selector
+		}
+
+		// lookup the route to send the request via
+		route, err := client.LookupRoute(request, callOpts)
+		if err != nil {
+			return nil, err
+		}
+
+		// pass a node to enable backwards compatability as changing the
+		// call func would be a breaking change.
+		// todo v3: change the call func to accept a route
+		node := &registry.Node{Address: route.Address, Metadata: route.Metadata}
+
+		// perform the call
+		stream, err := r.stream(ctx, node, request, callOpts)
+
+		// record the result of the call to inform future routing decisions
+		r.opts.Selector.Record(*route, err)
+
+		return stream, err
+	}
+
+	type response struct {
+		stream client.Stream
+		err    error
+	}
+
+	// get the retries
+	retries := callOpts.Retries
+
+	// disable retries when using a proxy
+	if _, _, ok := net.Proxy(request.Service(), callOpts.Address); ok {
+		retries = 0
+	}
+
+	ch := make(chan response, retries+1)
+	var grr error
+
+	for i := 0; i <= retries; i++ {
+		go func(i int) {
+			s, err := call(i)
+			ch <- response{s, err}
+		}(i)
+
+		select {
+		case <-ctx.Done():
+			return nil, errors.Timeout("go.micro.client", fmt.Sprintf("call timeout: %v", ctx.Err()))
+		case rsp := <-ch:
+			// if the call succeeded lets bail early
+			if rsp.err == nil {
+				return rsp.stream, nil
+			}
+
+			retry, rerr := callOpts.Retry(ctx, request, i, rsp.err)
+			if rerr != nil {
+				return nil, rerr
+			}
+
+			if !retry {
+				return nil, rsp.err
+			}
+
+			grr = rsp.err
+		}
+	}
+
+	return nil, grr
+}
+
+func (r *rpcClient) Publish(ctx context.Context, msg client.Message, opts ...client.PublishOption) error {
+	options := client.PublishOptions{
+		Context: context.Background(),
+	}
+	for _, o := range opts {
+		o(&options)
+	}
+
+	md, ok := metadata.FromContext(ctx)
+	if !ok {
+		md = make(map[string]string)
+	}
+
+	id := uuid.New().String()
+	md["Content-Type"] = msg.ContentType()
+	md["Micro-Topic"] = msg.Topic()
+	md["Micro-Id"] = id
+
+	// set the topic
+	topic := msg.Topic()
+
+	// get the exchange
+	if len(options.Exchange) > 0 {
+		topic = options.Exchange
+	}
+
+	// encode message body
+	cf, err := r.newCodec(msg.ContentType())
+	if err != nil {
+		return errors.InternalServerError("go.micro.client", err.Error())
+	}
+
+	var body []byte
+
+	// passed in raw data
+	if d, ok := msg.Payload().(*raw.Frame); ok {
+		body = d.Data
+	} else {
+		// new buffer
+		b := buf.New(nil)
+
+		if err := cf(b).Write(&codec.Message{
+			Target: topic,
+			Type:   codec.Event,
+			Header: map[string]string{
+				"Micro-Id":    id,
+				"Micro-Topic": msg.Topic(),
+			},
+		}, msg.Payload()); err != nil {
+			return errors.InternalServerError("go.micro.client", err.Error())
+		}
+
+		// set the body
+		body = b.Bytes()
+	}
+
+	if !r.once.Load().(bool) {
+		if err = r.opts.Broker.Connect(); err != nil {
+			return errors.InternalServerError("go.micro.client", err.Error())
+		}
+		r.once.Store(true)
+	}
+
+	return r.opts.Broker.Publish(topic, &broker.Message{
+		Header: md,
+		Body:   body,
+	}, broker.PublishContext(options.Context))
+}
+
+func (r *rpcClient) NewMessage(topic string, message interface{}, opts ...client.MessageOption) client.Message {
+	return newMessage(topic, message, r.opts.ContentType, opts...)
+}
+
+func (r *rpcClient) NewRequest(service, method string, request interface{}, reqOpts ...client.RequestOption) client.Request {
+	return newRequest(service, method, request, r.opts.ContentType, reqOpts...)
+}
+
+func (r *rpcClient) String() string {
+	return "mucp"
 }

client/mucp/mucp_codec.go

@@ -1,19 +1,19 @@
-package client
+package mucp
 
 import (
 	"bytes"
 	errs "errors"
 
-	"github.com/micro/go-micro/v2/codec"
-	raw "github.com/micro/go-micro/v2/codec/bytes"
-	"github.com/micro/go-micro/v2/codec/grpc"
-	"github.com/micro/go-micro/v2/codec/json"
-	"github.com/micro/go-micro/v2/codec/jsonrpc"
-	"github.com/micro/go-micro/v2/codec/proto"
-	"github.com/micro/go-micro/v2/codec/protorpc"
-	"github.com/micro/go-micro/v2/errors"
-	"github.com/micro/go-micro/v2/registry"
-	"github.com/micro/go-micro/v2/transport"
+	"github.com/micro/go-micro/v3/codec"
+	raw "github.com/micro/go-micro/v3/codec/bytes"
+	"github.com/micro/go-micro/v3/codec/grpc"
+	"github.com/micro/go-micro/v3/codec/json"
+	"github.com/micro/go-micro/v3/codec/jsonrpc"
+	"github.com/micro/go-micro/v3/codec/proto"
+	"github.com/micro/go-micro/v3/codec/protorpc"
+	"github.com/micro/go-micro/v3/errors"
+	"github.com/micro/go-micro/v3/registry"
+	"github.com/micro/go-micro/v3/transport"
 )
 
 const (

client/mucp/mucp_message.go

@@ -1,4 +1,8 @@
-package client
+package mucp
+
+import (
+	"github.com/micro/go-micro/v3/client"
+)
 
 type message struct {
 	topic       string
@@ -6,8 +10,8 @@ type message struct {
 	payload     interface{}
 }
 
-func newMessage(topic string, payload interface{}, contentType string, opts ...MessageOption) Message {
-	var options MessageOptions
+func newMessage(topic string, payload interface{}, contentType string, opts ...client.MessageOption) client.Message {
+	var options client.MessageOptions
 	for _, o := range opts {
 		o(&options)
 	}

client/mucp/mucp_request.go

@@ -1,7 +1,8 @@
-package client
+package mucp
 
 import (
-	"github.com/micro/go-micro/v2/codec"
+	"github.com/micro/go-micro/v3/client"
+	"github.com/micro/go-micro/v3/codec"
 )
 
 type rpcRequest struct {
@@ -11,11 +12,11 @@ type rpcRequest struct {
 	contentType string
 	codec       codec.Codec
 	body        interface{}
-	opts        RequestOptions
+	opts        client.RequestOptions
 }
 
-func newRequest(service, endpoint string, request interface{}, contentType string, reqOpts ...RequestOption) Request {
-	var opts RequestOptions
+func newRequest(service, endpoint string, request interface{}, contentType string, reqOpts ...client.RequestOption) client.Request {
+	var opts client.RequestOptions
 
 	for _, o := range reqOpts {
 		o(&opts)

client/mucp/mucp_request_test.go

@@ -1,7 +1,9 @@
-package client
+package mucp
 
 import (
 	"testing"
+
+	"github.com/micro/go-micro/v3/client"
 )
 
 func TestRequestOptions(t *testing.T) {
@@ -16,7 +18,7 @@ func TestRequestOptions(t *testing.T) {
 		t.Fatalf("expected 'endpoint' got %s", r.ContentType())
 	}
 
-	r2 := newRequest("service", "endpoint", nil, "application/json", WithContentType("application/protobuf"))
+	r2 := newRequest("service", "endpoint", nil, "application/json", client.WithContentType("application/protobuf"))
 	if r2.ContentType() != "application/protobuf" {
 		t.Fatalf("expected 'endpoint' got %s", r2.ContentType())
 	}

client/mucp/mucp_response.go

@@ -1,8 +1,8 @@
-package client
+package mucp
 
 import (
-	"github.com/micro/go-micro/v2/codec"
-	"github.com/micro/go-micro/v2/transport"
+	"github.com/micro/go-micro/v3/codec"
+	"github.com/micro/go-micro/v3/transport"
 )
 
 type rpcResponse struct {

client/mucp/mucp_stream.go

@@ -1,11 +1,12 @@
-package client
+package mucp
 
 import (
 	"context"
 	"io"
 	"sync"
 
-	"github.com/micro/go-micro/v2/codec"
+	"github.com/micro/go-micro/v3/client"
+	"github.com/micro/go-micro/v3/codec"
 )
 
 // Implements the streamer interface
@@ -14,8 +15,8 @@ type rpcStream struct {
 	id       string
 	closed   chan bool
 	err      error
-	request  Request
-	response Response
+	request  client.Request
+	response client.Response
 	codec    codec.Codec
 	context  context.Context
 
@@ -39,11 +40,11 @@ func (r *rpcStream) Context() context.Context {
 	return r.context
 }
 
-func (r *rpcStream) Request() Request {
+func (r *rpcStream) Request() client.Request {
 	return r.request
 }
 
-func (r *rpcStream) Response() Response {
+func (r *rpcStream) Response() client.Response {
 	return r.response
 }
 

client/mucp/mucp_test.go

@@ -1,13 +1,14 @@
-package client
+package mucp
 
 import (
 	"context"
 	"fmt"
 	"testing"
 
-	"github.com/micro/go-micro/v2/errors"
-	"github.com/micro/go-micro/v2/registry"
-	"github.com/micro/go-micro/v2/registry/memory"
+	"github.com/micro/go-micro/v3/client"
+	"github.com/micro/go-micro/v3/errors"
+	"github.com/micro/go-micro/v3/registry"
+	"github.com/micro/go-micro/v3/registry/memory"
 )
 
 func newTestRegistry() registry.Registry {
@@ -20,8 +21,8 @@ func TestCallAddress(t *testing.T) {
 	endpoint := "Test.Endpoint"
 	address := "10.1.10.1:8080"
 
-	wrap := func(cf CallFunc) CallFunc {
-		return func(ctx context.Context, node *registry.Node, req Request, rsp interface{}, opts CallOptions) error {
+	wrap := func(cf client.CallFunc) client.CallFunc {
+		return func(ctx context.Context, node *registry.Node, req client.Request, rsp interface{}, opts client.CallOptions) error {
 			called = true
 
 			if req.Service() != service {
@@ -43,14 +44,14 @@ func TestCallAddress(t *testing.T) {
 
 	r := newTestRegistry()
 	c := NewClient(
-		Registry(r),
-		WrapCall(wrap),
+		client.Registry(r),
+		client.WrapCall(wrap),
 	)
 
 	req := c.NewRequest(service, endpoint, nil)
 
 	// test calling remote address
-	if err := c.Call(context.Background(), req, nil, WithAddress(address)); err != nil {
+	if err := c.Call(context.Background(), req, nil, client.WithAddress(address)); err != nil {
 		t.Fatal("call with address error", err)
 	}
 
@@ -67,8 +68,8 @@ func TestCallRetry(t *testing.T) {
 
 	var called int
 
-	wrap := func(cf CallFunc) CallFunc {
-		return func(ctx context.Context, node *registry.Node, req Request, rsp interface{}, opts CallOptions) error {
+	wrap := func(cf client.CallFunc) client.CallFunc {
+		return func(ctx context.Context, node *registry.Node, req client.Request, rsp interface{}, opts client.CallOptions) error {
 			called++
 			if called == 1 {
 				return errors.InternalServerError("test.error", "retry request")
@@ -81,14 +82,14 @@ func TestCallRetry(t *testing.T) {
 
 	r := newTestRegistry()
 	c := NewClient(
-		Registry(r),
-		WrapCall(wrap),
+		client.Registry(r),
+		client.WrapCall(wrap),
 	)
 
 	req := c.NewRequest(service, endpoint, nil)
 
 	// test calling remote address
-	if err := c.Call(context.Background(), req, nil, WithAddress(address)); err != nil {
+	if err := c.Call(context.Background(), req, nil, client.WithAddress(address)); err != nil {
 		t.Fatal("call with address error", err)
 	}
 
@@ -105,8 +106,8 @@ func TestCallWrapper(t *testing.T) {
 	endpoint := "Test.Endpoint"
 	address := "10.1.10.1:8080"
 
-	wrap := func(cf CallFunc) CallFunc {
-		return func(ctx context.Context, node *registry.Node, req Request, rsp interface{}, opts CallOptions) error {
+	wrap := func(cf client.CallFunc) client.CallFunc {
+		return func(ctx context.Context, node *registry.Node, req client.Request, rsp interface{}, opts client.CallOptions) error {
 			called = true
 
 			if req.Service() != service {
@@ -128,8 +129,8 @@ func TestCallWrapper(t *testing.T) {
 
 	r := newTestRegistry()
 	c := NewClient(
-		Registry(r),
-		WrapCall(wrap),
+		client.Registry(r),
+		client.WrapCall(wrap),
 	)
 
 	r.Register(&registry.Service{

client/mucp/options_test.go

@@ -1,10 +1,11 @@
-package client
+package mucp
 
 import (
 	"testing"
 	"time"
 
-	"github.com/micro/go-micro/v2/transport"
+	"github.com/micro/go-micro/v3/client"
+	"github.com/micro/go-micro/v3/transport"
 )
 
 func TestCallOptions(t *testing.T) {
@@ -14,33 +15,33 @@ func TestCallOptions(t *testing.T) {
 		rtimeout time.Duration
 		dtimeout time.Duration
 	}{
-		{false, DefaultRetries, DefaultRequestTimeout, transport.DefaultDialTimeout},
+		{false, client.DefaultRetries, client.DefaultRequestTimeout, transport.DefaultDialTimeout},
 		{true, 10, time.Second, time.Second * 2},
 	}
 
 	for _, d := range testData {
-		var opts Options
-		var cl Client
+		var opts client.Options
+		var cl client.Client
 
 		if d.set {
-			opts = NewOptions(
-				Retries(d.retries),
-				RequestTimeout(d.rtimeout),
-				DialTimeout(d.dtimeout),
+			opts = client.NewOptions(
+				client.Retries(d.retries),
+				client.RequestTimeout(d.rtimeout),
+				client.DialTimeout(d.dtimeout),
 			)
 
 			cl = NewClient(
-				Retries(d.retries),
-				RequestTimeout(d.rtimeout),
-				DialTimeout(d.dtimeout),
+				client.Retries(d.retries),
+				client.RequestTimeout(d.rtimeout),
+				client.DialTimeout(d.dtimeout),
 			)
 		} else {
-			opts = NewOptions()
+			opts = client.NewOptions()
 			cl = NewClient()
 		}
 
 		// test options and those set in client
-		for _, o := range []Options{opts, cl.Options()} {
+		for _, o := range []client.Options{opts, cl.Options()} {
 			if o.CallOptions.Retries != d.retries {
 				t.Fatalf("Expected retries %v got %v", d.retries, o.CallOptions.Retries)
 			}
@@ -57,12 +58,12 @@ func TestCallOptions(t *testing.T) {
 			callOpts := o.CallOptions
 
 			// create new opts
-			cretries := WithRetries(o.CallOptions.Retries * 10)
-			crtimeout := WithRequestTimeout(o.CallOptions.RequestTimeout * (time.Second * 10))
-			cdtimeout := WithDialTimeout(o.CallOptions.DialTimeout * (time.Second * 10))
+			cretries := client.WithRetries(o.CallOptions.Retries * 10)
+			crtimeout := client.WithRequestTimeout(o.CallOptions.RequestTimeout * (time.Second * 10))
+			cdtimeout := client.WithDialTimeout(o.CallOptions.DialTimeout * (time.Second * 10))
 
 			// set call options
-			for _, opt := range []CallOption{cretries, crtimeout, cdtimeout} {
+			for _, opt := range []client.CallOption{cretries, crtimeout, cdtimeout} {
 				opt(&callOpts)
 			}
 

client/options.go

@@ -4,12 +4,14 @@ import (
 	"context"
 	"time"
 
-	"github.com/micro/go-micro/v2/broker"
-	"github.com/micro/go-micro/v2/codec"
-	"github.com/micro/go-micro/v2/registry"
-	"github.com/micro/go-micro/v2/router"
-	"github.com/micro/go-micro/v2/selector"
-	"github.com/micro/go-micro/v2/transport"
+	"github.com/micro/go-micro/v3/broker"
+	"github.com/micro/go-micro/v3/broker/http"
+	"github.com/micro/go-micro/v3/codec"
+	"github.com/micro/go-micro/v3/registry"
+	"github.com/micro/go-micro/v3/router"
+	regRouter "github.com/micro/go-micro/v3/router/registry"
+	"github.com/micro/go-micro/v3/selector"
+	"github.com/micro/go-micro/v3/transport"
 )
 
 type Options struct {
@@ -102,7 +104,7 @@ func NewOptions(options ...Option) Options {
 	opts := Options{
 		Cache:       NewCache(),
 		Context:     context.Background(),
-		ContentType: DefaultContentType,
+		ContentType: "application/protobuf",
 		Codecs:      make(map[string]codec.NewCodec),
 		CallOptions: CallOptions{
 			Backoff:        DefaultBackoff,
@@ -113,8 +115,8 @@ func NewOptions(options ...Option) Options {
 		},
 		PoolSize:  DefaultPoolSize,
 		PoolTTL:   DefaultPoolTTL,
-		Broker:    broker.DefaultBroker,
-		Router:    router.DefaultRouter,
+		Broker:    http.NewBroker(),
+		Router:    regRouter.NewRouter(),
 		Selector:  selector.DefaultSelector,
 		Transport: transport.DefaultTransport,
 	}

client/retry.go

@@ -3,7 +3,7 @@ package client
 import (
 	"context"
 
-	"github.com/micro/go-micro/v2/errors"
+	"github.com/micro/go-micro/v3/errors"
 )
 
 // note that returning either false or a non-nil error will result in the call not being retried

client/rpc_client.go

@@ -1,617 +0,0 @@
-package client
-
-import (
-	"context"
-	"fmt"
-	"sync/atomic"
-	"time"
-
-	"github.com/google/uuid"
-	"github.com/micro/go-micro/v2/broker"
-	"github.com/micro/go-micro/v2/codec"
-	raw "github.com/micro/go-micro/v2/codec/bytes"
-	"github.com/micro/go-micro/v2/errors"
-	"github.com/micro/go-micro/v2/metadata"
-	"github.com/micro/go-micro/v2/registry"
-	"github.com/micro/go-micro/v2/transport"
-	"github.com/micro/go-micro/v2/util/buf"
-	"github.com/micro/go-micro/v2/util/net"
-	"github.com/micro/go-micro/v2/util/pool"
-)
-
-type rpcClient struct {
-	once atomic.Value
-	opts Options
-	pool pool.Pool
-	seq  uint64
-}
-
-func newRpcClient(opt ...Option) Client {
-	opts := NewOptions(opt...)
-
-	p := pool.NewPool(
-		pool.Size(opts.PoolSize),
-		pool.TTL(opts.PoolTTL),
-		pool.Transport(opts.Transport),
-	)
-
-	rc := &rpcClient{
-		opts: opts,
-		pool: p,
-		seq:  0,
-	}
-	rc.once.Store(false)
-
-	c := Client(rc)
-
-	// wrap in reverse
-	for i := len(opts.Wrappers); i > 0; i-- {
-		c = opts.Wrappers[i-1](c)
-	}
-
-	return c
-}
-
-func (r *rpcClient) newCodec(contentType string) (codec.NewCodec, error) {
-	if c, ok := r.opts.Codecs[contentType]; ok {
-		return c, nil
-	}
-	if cf, ok := DefaultCodecs[contentType]; ok {
-		return cf, nil
-	}
-	return nil, fmt.Errorf("Unsupported Content-Type: %s", contentType)
-}
-
-func (r *rpcClient) call(ctx context.Context, node *registry.Node, req Request, resp interface{}, opts CallOptions) error {
-	msg := &transport.Message{
-		Header: make(map[string]string),
-	}
-
-	md, ok := metadata.FromContext(ctx)
-	if ok {
-		for k, v := range md {
-			// don't copy Micro-Topic header, that used for pub/sub
-			// this fix case then client uses the same context that received in subscriber
-			if k == "Micro-Topic" {
-				continue
-			}
-			msg.Header[k] = v
-		}
-	}
-
-	// set timeout in nanoseconds
-	msg.Header["Timeout"] = fmt.Sprintf("%d", opts.RequestTimeout)
-	// set the content type for the request
-	msg.Header["Content-Type"] = req.ContentType()
-	// set the accept header
-	msg.Header["Accept"] = req.ContentType()
-
-	// setup old protocol
-	cf := setupProtocol(msg, node)
-
-	// no codec specified
-	if cf == nil {
-		var err error
-		cf, err = r.newCodec(req.ContentType())
-		if err != nil {
-			return errors.InternalServerError("go.micro.client", err.Error())
-		}
-	}
-
-	dOpts := []transport.DialOption{
-		transport.WithStream(),
-	}
-
-	if opts.DialTimeout >= 0 {
-		dOpts = append(dOpts, transport.WithTimeout(opts.DialTimeout))
-	}
-
-	c, err := r.pool.Get(node.Address, dOpts...)
-	if err != nil {
-		return errors.InternalServerError("go.micro.client", "connection error: %v", err)
-	}
-
-	seq := atomic.AddUint64(&r.seq, 1) - 1
-	codec := newRpcCodec(msg, c, cf, "")
-
-	rsp := &rpcResponse{
-		socket: c,
-		codec:  codec,
-	}
-
-	stream := &rpcStream{
-		id:       fmt.Sprintf("%v", seq),
-		context:  ctx,
-		request:  req,
-		response: rsp,
-		codec:    codec,
-		closed:   make(chan bool),
-		release:  func(err error) { r.pool.Release(c, err) },
-		sendEOS:  false,
-	}
-	// close the stream on exiting this function
-	defer stream.Close()
-
-	// wait for error response
-	ch := make(chan error, 1)
-
-	go func() {
-		defer func() {
-			if r := recover(); r != nil {
-				ch <- errors.InternalServerError("go.micro.client", "panic recovered: %v", r)
-			}
-		}()
-
-		// send request
-		if err := stream.Send(req.Body()); err != nil {
-			ch <- err
-			return
-		}
-
-		// recv request
-		if err := stream.Recv(resp); err != nil {
-			ch <- err
-			return
-		}
-
-		// success
-		ch <- nil
-	}()
-
-	var grr error
-
-	select {
-	case err := <-ch:
-		return err
-	case <-ctx.Done():
-		grr = errors.Timeout("go.micro.client", fmt.Sprintf("%v", ctx.Err()))
-	}
-
-	// set the stream error
-	if grr != nil {
-		stream.Lock()
-		stream.err = grr
-		stream.Unlock()
-
-		return grr
-	}
-
-	return nil
-}
-
-func (r *rpcClient) stream(ctx context.Context, node *registry.Node, req Request, opts CallOptions) (Stream, error) {
-	msg := &transport.Message{
-		Header: make(map[string]string),
-	}
-
-	md, ok := metadata.FromContext(ctx)
-	if ok {
-		for k, v := range md {
-			msg.Header[k] = v
-		}
-	}
-
-	// set timeout in nanoseconds
-	if opts.StreamTimeout > time.Duration(0) {
-		msg.Header["Timeout"] = fmt.Sprintf("%d", opts.StreamTimeout)
-	}
-	// set the content type for the request
-	msg.Header["Content-Type"] = req.ContentType()
-	// set the accept header
-	msg.Header["Accept"] = req.ContentType()
-
-	// set old codecs
-	cf := setupProtocol(msg, node)
-
-	// no codec specified
-	if cf == nil {
-		var err error
-		cf, err = r.newCodec(req.ContentType())
-		if err != nil {
-			return nil, errors.InternalServerError("go.micro.client", err.Error())
-		}
-	}
-
-	dOpts := []transport.DialOption{
-		transport.WithStream(),
-	}
-
-	if opts.DialTimeout >= 0 {
-		dOpts = append(dOpts, transport.WithTimeout(opts.DialTimeout))
-	}
-
-	c, err := r.opts.Transport.Dial(node.Address, dOpts...)
-	if err != nil {
-		return nil, errors.InternalServerError("go.micro.client", "connection error: %v", err)
-	}
-
-	// increment the sequence number
-	seq := atomic.AddUint64(&r.seq, 1) - 1
-	id := fmt.Sprintf("%v", seq)
-
-	// create codec with stream id
-	codec := newRpcCodec(msg, c, cf, id)
-
-	rsp := &rpcResponse{
-		socket: c,
-		codec:  codec,
-	}
-
-	// set request codec
-	if r, ok := req.(*rpcRequest); ok {
-		r.codec = codec
-	}
-
-	stream := &rpcStream{
-		id:       id,
-		context:  ctx,
-		request:  req,
-		response: rsp,
-		codec:    codec,
-		// used to close the stream
-		closed: make(chan bool),
-		// signal the end of stream,
-		sendEOS: true,
-		// release func
-		release: func(err error) { c.Close() },
-	}
-
-	// wait for error response
-	ch := make(chan error, 1)
-
-	go func() {
-		// send the first message
-		ch <- stream.Send(req.Body())
-	}()
-
-	var grr error
-
-	select {
-	case err := <-ch:
-		grr = err
-	case <-ctx.Done():
-		grr = errors.Timeout("go.micro.client", fmt.Sprintf("%v", ctx.Err()))
-	}
-
-	if grr != nil {
-		// set the error
-		stream.Lock()
-		stream.err = grr
-		stream.Unlock()
-
-		// close the stream
-		stream.Close()
-		return nil, grr
-	}
-
-	return stream, nil
-}
-
-func (r *rpcClient) Init(opts ...Option) error {
-	size := r.opts.PoolSize
-	ttl := r.opts.PoolTTL
-	tr := r.opts.Transport
-
-	for _, o := range opts {
-		o(&r.opts)
-	}
-
-	// update pool configuration if the options changed
-	if size != r.opts.PoolSize || ttl != r.opts.PoolTTL || tr != r.opts.Transport {
-		// close existing pool
-		r.pool.Close()
-		// create new pool
-		r.pool = pool.NewPool(
-			pool.Size(r.opts.PoolSize),
-			pool.TTL(r.opts.PoolTTL),
-			pool.Transport(r.opts.Transport),
-		)
-	}
-
-	return nil
-}
-
-func (r *rpcClient) Options() Options {
-	return r.opts
-}
-
-func (r *rpcClient) Call(ctx context.Context, request Request, response interface{}, opts ...CallOption) error {
-	// make a copy of call opts
-	callOpts := r.opts.CallOptions
-	for _, opt := range opts {
-		opt(&callOpts)
-	}
-
-	// check if we already have a deadline
-	if d, ok := ctx.Deadline(); !ok {
-		// no deadline so we create a new one
-		var cancel context.CancelFunc
-		ctx, cancel = context.WithTimeout(ctx, callOpts.RequestTimeout)
-		defer cancel()
-	} else {
-		// got a deadline so no need to setup context
-		// but we need to set the timeout we pass along
-		remaining := d.Sub(time.Now())
-		WithRequestTimeout(remaining)(&callOpts)
-	}
-
-	// should we noop right here?
-	select {
-	case <-ctx.Done():
-		return errors.Timeout("go.micro.client", fmt.Sprintf("%v", ctx.Err()))
-	default:
-	}
-
-	// make copy of call method
-	rcall := r.call
-
-	// wrap the call in reverse
-	for i := len(callOpts.CallWrappers); i > 0; i-- {
-		rcall = callOpts.CallWrappers[i-1](rcall)
-	}
-
-	// return errors.New("go.micro.client", "request timeout", 408)
-	call := func(i int) error {
-		// call backoff first. Someone may want an initial start delay
-		t, err := callOpts.Backoff(ctx, request, i)
-		if err != nil {
-			return errors.InternalServerError("go.micro.client", "backoff error: %v", err.Error())
-		}
-
-		// only sleep if greater than 0
-		if t.Seconds() > 0 {
-			time.Sleep(t)
-		}
-
-		// use the router passed as a call option, or fallback to the rpc clients router
-		if callOpts.Router == nil {
-			callOpts.Router = r.opts.Router
-		}
-		// use the selector passed as a call option, or fallback to the rpc clients selector
-		if callOpts.Selector == nil {
-			callOpts.Selector = r.opts.Selector
-		}
-
-		// lookup the route to send the request via
-		route, err := LookupRoute(request, callOpts)
-		if err != nil {
-			return err
-		}
-
-		// pass a node to enable backwards comparability as changing the
-		// call func would be a breaking change.
-		// todo v3: change the call func to accept a route
-		node := &registry.Node{Address: route.Address, Metadata: route.Metadata}
-
-		// make the call
-		err = rcall(ctx, node, request, response, callOpts)
-
-		// record the result of the call to inform future routing decisions
-		r.opts.Selector.Record(*route, err)
-
-		return err
-	}
-
-	// get the retries
-	retries := callOpts.Retries
-
-	// disable retries when using a proxy
-	if _, _, ok := net.Proxy(request.Service(), callOpts.Address); ok {
-		retries = 0
-	}
-
-	ch := make(chan error, retries+1)
-	var gerr error
-
-	for i := 0; i <= retries; i++ {
-		go func(i int) {
-			ch <- call(i)
-		}(i)
-
-		select {
-		case <-ctx.Done():
-			return errors.Timeout("go.micro.client", fmt.Sprintf("call timeout: %v", ctx.Err()))
-		case err := <-ch:
-			// if the call succeeded lets bail early
-			if err == nil {
-				return nil
-			}
-
-			retry, rerr := callOpts.Retry(ctx, request, i, err)
-			if rerr != nil {
-				return rerr
-			}
-
-			if !retry {
-				return err
-			}
-
-			gerr = err
-		}
-	}
-
-	return gerr
-}
-
-func (r *rpcClient) Stream(ctx context.Context, request Request, opts ...CallOption) (Stream, error) {
-	// make a copy of call opts
-	callOpts := r.opts.CallOptions
-	for _, opt := range opts {
-		opt(&callOpts)
-	}
-
-	// should we noop right here?
-	select {
-	case <-ctx.Done():
-		return nil, errors.Timeout("go.micro.client", fmt.Sprintf("%v", ctx.Err()))
-	default:
-	}
-
-	call := func(i int) (Stream, error) {
-		// call backoff first. Someone may want an initial start delay
-		t, err := callOpts.Backoff(ctx, request, i)
-		if err != nil {
-			return nil, errors.InternalServerError("go.micro.client", "backoff error: %v", err.Error())
-		}
-
-		// only sleep if greater than 0
-		if t.Seconds() > 0 {
-			time.Sleep(t)
-		}
-
-		// use the router passed as a call option, or fallback to the rpc clients router
-		if callOpts.Router == nil {
-			callOpts.Router = r.opts.Router
-		}
-		// use the selector passed as a call option, or fallback to the rpc clients selector
-		if callOpts.Selector == nil {
-			callOpts.Selector = r.opts.Selector
-		}
-
-		// lookup the route to send the request via
-		route, err := LookupRoute(request, callOpts)
-		if err != nil {
-			return nil, err
-		}
-
-		// pass a node to enable backwards compatability as changing the
-		// call func would be a breaking change.
-		// todo v3: change the call func to accept a route
-		node := &registry.Node{Address: route.Address, Metadata: route.Metadata}
-
-		// perform the call
-		stream, err := r.stream(ctx, node, request, callOpts)
-
-		// record the result of the call to inform future routing decisions
-		r.opts.Selector.Record(*route, err)
-
-		return stream, err
-	}
-
-	type response struct {
-		stream Stream
-		err    error
-	}
-
-	// get the retries
-	retries := callOpts.Retries
-
-	// disable retries when using a proxy
-	if _, _, ok := net.Proxy(request.Service(), callOpts.Address); ok {
-		retries = 0
-	}
-
-	ch := make(chan response, retries+1)
-	var grr error
-
-	for i := 0; i <= retries; i++ {
-		go func(i int) {
-			s, err := call(i)
-			ch <- response{s, err}
-		}(i)
-
-		select {
-		case <-ctx.Done():
-			return nil, errors.Timeout("go.micro.client", fmt.Sprintf("call timeout: %v", ctx.Err()))
-		case rsp := <-ch:
-			// if the call succeeded lets bail early
-			if rsp.err == nil {
-				return rsp.stream, nil
-			}
-
-			retry, rerr := callOpts.Retry(ctx, request, i, rsp.err)
-			if rerr != nil {
-				return nil, rerr
-			}
-
-			if !retry {
-				return nil, rsp.err
-			}
-
-			grr = rsp.err
-		}
-	}
-
-	return nil, grr
-}
-
-func (r *rpcClient) Publish(ctx context.Context, msg Message, opts ...PublishOption) error {
-	options := PublishOptions{
-		Context: context.Background(),
-	}
-	for _, o := range opts {
-		o(&options)
-	}
-
-	md, ok := metadata.FromContext(ctx)
-	if !ok {
-		md = make(map[string]string)
-	}
-
-	id := uuid.New().String()
-	md["Content-Type"] = msg.ContentType()
-	md["Micro-Topic"] = msg.Topic()
-	md["Micro-Id"] = id
-
-	// set the topic
-	topic := msg.Topic()
-
-	// get the exchange
-	if len(options.Exchange) > 0 {
-		topic = options.Exchange
-	}
-
-	// encode message body
-	cf, err := r.newCodec(msg.ContentType())
-	if err != nil {
-		return errors.InternalServerError("go.micro.client", err.Error())
-	}
-
-	var body []byte
-
-	// passed in raw data
-	if d, ok := msg.Payload().(*raw.Frame); ok {
-		body = d.Data
-	} else {
-		// new buffer
-		b := buf.New(nil)
-
-		if err := cf(b).Write(&codec.Message{
-			Target: topic,
-			Type:   codec.Event,
-			Header: map[string]string{
-				"Micro-Id":    id,
-				"Micro-Topic": msg.Topic(),
-			},
-		}, msg.Payload()); err != nil {
-			return errors.InternalServerError("go.micro.client", err.Error())
-		}
-
-		// set the body
-		body = b.Bytes()
-	}
-
-	if !r.once.Load().(bool) {
-		if err = r.opts.Broker.Connect(); err != nil {
-			return errors.InternalServerError("go.micro.client", err.Error())
-		}
-		r.once.Store(true)
-	}
-
-	return r.opts.Broker.Publish(topic, &broker.Message{
-		Header: md,
-		Body:   body,
-	}, broker.PublishContext(options.Context))
-}
-
-func (r *rpcClient) NewMessage(topic string, message interface{}, opts ...MessageOption) Message {
-	return newMessage(topic, message, r.opts.ContentType, opts...)
-}
-
-func (r *rpcClient) NewRequest(service, method string, request interface{}, reqOpts ...RequestOption) Request {
-	return newRequest(service, method, request, r.opts.ContentType, reqOpts...)
-}
-
-func (r *rpcClient) String() string {
-	return "mucp"
-}

client/service/proto/client.pb.micro.go

@@ -11,9 +11,9 @@ import (
 
 import (
 	context "context"
-	api "github.com/micro/go-micro/v2/api"
-	client "github.com/micro/go-micro/v2/client"
-	server "github.com/micro/go-micro/v2/server"
+	api "github.com/micro/go-micro/v3/api"
+	client "github.com/micro/go-micro/v3/client"
+	server "github.com/micro/go-micro/v3/server"
 )
 
 // Reference imports to suppress errors if they are not otherwise used.

client/test_request.go

@@ -0,0 +1,65 @@
+package client
+
+import (
+	"github.com/micro/go-micro/v3/codec"
+)
+
+type testRequest struct {
+	service     string
+	method      string
+	endpoint    string
+	contentType string
+	codec       codec.Codec
+	body        interface{}
+	opts        RequestOptions
+}
+
+func newRequest(service, endpoint string, request interface{}, contentType string, reqOpts ...RequestOption) Request {
+	var opts RequestOptions
+
+	for _, o := range reqOpts {
+		o(&opts)
+	}
+
+	// set the content-type specified
+	if len(opts.ContentType) > 0 {
+		contentType = opts.ContentType
+	}
+
+	return &testRequest{
+		service:     service,
+		method:      endpoint,
+		endpoint:    endpoint,
+		body:        request,
+		contentType: contentType,
+		opts:        opts,
+	}
+}
+
+func (r *testRequest) ContentType() string {
+	return r.contentType
+}
+
+func (r *testRequest) Service() string {
+	return r.service
+}
+
+func (r *testRequest) Method() string {
+	return r.method
+}
+
+func (r *testRequest) Endpoint() string {
+	return r.endpoint
+}
+
+func (r *testRequest) Body() interface{} {
+	return r.body
+}
+
+func (r *testRequest) Codec() codec.Writer {
+	return r.codec
+}
+
+func (r *testRequest) Stream() bool {
+	return r.opts.Stream
+}