Apply Code Coverage Badge

Signed-off-by: Василий Толстов <v.tolstov@unistack.org>

.gitea/workflows/job_coverage.yml

@@ -26,24 +26,24 @@ jobs:
 
     - name: test coverage
       run: |
-        go test -v -cover ./... -covermode=count -coverprofile coverage.out -coverpkg ./...
+        go test -v -cover ./... -coverprofile coverage.out -coverpkg ./...
         go tool cover -func coverage.out -o coverage.out
 
     - name: coverage badge
-      uses: tj-actions/coverage-badge-go@v2
+      uses: tj-actions/coverage-badge-go@v1
       with:
         green: 80
         filename: coverage.out
 
     - uses: stefanzweifel/git-auto-commit-action@v4
-      name: autocommit
+      id: auto-commit-action
       with:
         commit_message: Apply Code Coverage Badge
         skip_fetch: true
         skip_checkout: true
         file_pattern: ./README.md
 
-    - name: push
+    - name: Push Changes
       if: steps.auto-commit-action.outputs.changes_detected == 'true'
       uses: ad-m/github-push-action@master
       with:

README.md

@@ -1,9 +1,5 @@
 # Micro 
-![Coverage](https://img.shields.io/badge/Coverage-44.6%25-yellow)
+![Coverage](https://img.shields.io/badge/Coverage-45.0%25-yellow)
-[![License](https://img.shields.io/:license-apache-blue.svg)](https://opensource.org/licenses/Apache-2.0)
-[![Doc](https://img.shields.io/badge/go.dev-reference-007d9c?logo=go&logoColor=white&style=flat-square)](https://pkg.go.dev/go.unistack.org/micro/v3?tab=overview)
-[![Status](https://git.unistack.org/unistack-org/micro/actions/workflows/job_tests.yml/badge.svg?branch=v3)](https://git.unistack.org/unistack-org/micro/actions?query=workflow%3Abuild+branch%3Av3+event%3Apush)
-[![Lint](https://goreportcard.com/badge/go.unistack.org/micro/v3)](https://goreportcard.com/report/go.unistack.org/micro/v3)
 
 Micro is a standard library for microservices.
 
@@ -15,20 +11,30 @@ Micro provides the core requirements for distributed systems development includi
 
 Micro abstracts away the details of distributed systems. Here are the main features.
 
+- **Authentication** - Auth is built in as a first class citizen. Authentication and authorization enable secure 
+zero trust networking by providing every service an identity and certificates. This additionally includes rule 
+based access control.
+
 - **Dynamic Config** - Load and hot reload dynamic config from anywhere. The config interface provides a way to load application 
-level config from any source such as env vars, cmdline, file, consul, vault... You can merge the sources and even define fallbacks.
+level config from any source such as env vars, file, etcd. You can merge the sources and even define fallbacks.
 
 - **Data Storage** - A simple data store interface to read, write and delete records. It includes support for memory, file and 
-s3. State and persistence becomes a core requirement beyond prototyping and Micro looks to build that into the framework.
+CockroachDB by default. State and persistence becomes a core requirement beyond prototyping and Micro looks to build that into the framework.
 
 - **Service Discovery** - Automatic service registration and name resolution. Service discovery is at the core of micro service 
 development. When service A needs to speak to service B it needs the location of that service.
 
+- **Load Balancing** - Client side load balancing built on service discovery. Once we have the addresses of any number of instances 
+of a service we now need a way to decide which node to route to. We use random hashed load balancing to provide even distribution 
+across the services and retry a different node if there's a problem. 
+
 - **Message Encoding** - Dynamic message encoding based on content-type. The client and server will use codecs along with content-type 
 to seamlessly encode and decode Go types for you. Any variety of messages could be encoded and sent from different clients. The client 
 and server handle this by default.
 
-- **Async Messaging** - Pub/Sub is built in as a first class citizen for asynchronous communication and event driven architectures.
+- **Transport** - gRPC or http based request/response with support for bidirectional streaming. We provide an abstraction for synchronous communication. A request made to a service will be automatically resolved, load balanced, dialled and streamed.
+
+- **Async Messaging** - PubSub is built in as a first class citizen for asynchronous communication and event driven architectures.
 Event notifications are a core pattern in micro service development.
 
 - **Synchronization** - Distributed systems are often built in an eventually consistent manner. Support for distributed locking and 
@@ -37,6 +43,10 @@ leadership are built in as a Sync interface. When using an eventually consistent
 - **Pluggable Interfaces** - Micro makes use of Go interfaces for each system abstraction. Because of this these interfaces 
 are pluggable and allows Micro to be runtime agnostic.
 
+## Getting Started
+
+To be created.
+
 ## License
 
 Micro is Apache 2.0 licensed.

client/noop.go

@@ -588,6 +588,7 @@ func (n *noopClient) publish(ctx context.Context, ps []Message, opts ...PublishO
 
 	for _, p := range ps {
 		md := metadata.Copy(omd)
+		md[metadata.HeaderContentType] = p.ContentType()
 		topic := p.Topic()
 		if len(exchange) > 0 {
 			topic = exchange
@@ -599,8 +600,6 @@ func (n *noopClient) publish(ctx context.Context, ps []Message, opts ...PublishO
 			md.Set(k, v)
 		}
 
-		md[metadata.HeaderContentType] = p.ContentType()
-
 		var body []byte
 
 		// passed in raw data

codec/codec.go

@@ -3,8 +3,6 @@ package codec
 
 import (
 	"errors"
-
-	"gopkg.in/yaml.v3"
 )
 
 var (
@@ -56,22 +54,3 @@ func (m *RawMessage) UnmarshalJSON(data []byte) error {
 	*m = append((*m)[0:0], data...)
 	return nil
 }
-
-// MarshalYAML returns m as the JSON encoding of m.
-func (m *RawMessage) MarshalYAML() ([]byte, error) {
-	if m == nil {
-		return []byte("null"), nil
-	} else if len(*m) == 0 {
-		return []byte("null"), nil
-	}
-	return *m, nil
-}
-
-// UnmarshalYAML sets *m to a copy of data.
-func (m *RawMessage) UnmarshalYAML(n *yaml.Node) error {
-	if m == nil {
-		return errors.New("RawMessage UnmarshalYAML on nil pointer")
-	}
-	*m = append((*m)[0:0], []byte(n.Value)...)
-	return nil
-}

codec/frame.go

@@ -1,7 +1,5 @@
 package codec
 
-import "gopkg.in/yaml.v3"
-
 // Frame gives us the ability to define raw data to send over the pipes
 type Frame struct {
 	Data []byte
@@ -22,17 +20,6 @@ func (m *Frame) UnmarshalJSON(data []byte) error {
 	return m.Unmarshal(data)
 }
 
-// MarshalYAML returns frame data
-func (m *Frame) MarshalYAML() ([]byte, error) {
-	return m.Marshal()
-}
-
-// UnmarshalYAML set frame data
-func (m *Frame) UnmarshalYAML(n *yaml.Node) error {
-	m.Data = []byte(n.Value)
-	return nil
-}
-
 // ProtoMessage noop func
 func (m *Frame) ProtoMessage() {}
 

go.mod

@@ -1,12 +1,12 @@
 module go.unistack.org/micro/v3
 
-go 1.22.0
+go 1.23.4
 
 require (
 	dario.cat/mergo v1.0.1
-	github.com/DATA-DOG/go-sqlmock v1.5.2
+	github.com/DATA-DOG/go-sqlmock v1.5.0
 	github.com/KimMachineGun/automemlimit v0.6.1
-	github.com/ash3in/uuidv8 v1.2.0
+	github.com/ash3in/uuidv8 v1.0.1
 	github.com/google/uuid v1.6.0
 	github.com/matoous/go-nanoid v1.5.1
 	github.com/patrickmn/go-cache v2.1.0+incompatible
@@ -14,8 +14,8 @@ require (
 	go.uber.org/automaxprocs v1.6.0
 	go.unistack.org/micro-proto/v3 v3.4.1
 	golang.org/x/sync v0.10.0
-	google.golang.org/grpc v1.69.2
+	google.golang.org/grpc v1.68.1
-	google.golang.org/protobuf v1.36.1
+	google.golang.org/protobuf v1.35.2
 	gopkg.in/yaml.v3 v3.0.1
 )
 
@@ -36,8 +36,8 @@ require (
 	github.com/stretchr/testify v1.10.0 // indirect
 	go.uber.org/goleak v1.3.0 // indirect
 	golang.org/x/exp v0.0.0-20241210194714-1829a127f884 // indirect
-	golang.org/x/net v0.33.0 // indirect
+	golang.org/x/net v0.32.0 // indirect
 	golang.org/x/sys v0.28.0 // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20241216192217-9240e9c98484 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20241209162323-e6fa225c2576 // indirect
 	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 )

go.sum

@@ -1,11 +1,11 @@
 dario.cat/mergo v1.0.1 h1:Ra4+bf83h2ztPIQYNP99R6m+Y7KfnARDfID+a+vLl4s=
 dario.cat/mergo v1.0.1/go.mod h1:uNxQE+84aUszobStD9th8a29P2fMDhsBdgRYvZOxGmk=
-github.com/DATA-DOG/go-sqlmock v1.5.2 h1:OcvFkGmslmlZibjAjaHm3L//6LiuBgolP7OputlJIzU=
+github.com/DATA-DOG/go-sqlmock v1.5.0 h1:Shsta01QNfFxHCfpW6YH2STWB0MudeXXEWMr20OEh60=
-github.com/DATA-DOG/go-sqlmock v1.5.2/go.mod h1:88MAG/4G7SMwSE3CeA0ZKzrT5CiOU3OJ+JlNzwDqpNU=
+github.com/DATA-DOG/go-sqlmock v1.5.0/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM=
 github.com/KimMachineGun/automemlimit v0.6.1 h1:ILa9j1onAAMadBsyyUJv5cack8Y1WT26yLj/V+ulKp8=
 github.com/KimMachineGun/automemlimit v0.6.1/go.mod h1:T7xYht7B8r6AG/AqFcUdc7fzd2bIdBKmepfP2S1svPY=
-github.com/ash3in/uuidv8 v1.2.0 h1:2oogGdtCPwaVtyvPPGin4TfZLtOGE5F+W++E880G6SI=
+github.com/ash3in/uuidv8 v1.0.1 h1:dIq1XRkWT8lGA7N5s7WRTB4V3k49WTBLvILz7aCLp80=
-github.com/ash3in/uuidv8 v1.2.0/go.mod h1:BnU0wJBxnzdEKmVg4xckBkD+VZuecTFTUP3M0dWgyY4=
+github.com/ash3in/uuidv8 v1.0.1/go.mod h1:EoyUgCtxNBnrnpc9efw5rVN1cQ+LFGCoJiFuD6maOMw=
 github.com/cilium/ebpf v0.16.0 h1:+BiEnHL6Z7lXnlGUsXQPPAE7+kenAd4ES8MQ5min0Ok=
 github.com/cilium/ebpf v0.16.0/go.mod h1:L7u2Blt2jMM/vLAVgjxluxtBKlz3/GWjB0dMOEngfwE=
 github.com/containerd/cgroups/v3 v3.0.4 h1:2fs7l3P0Qxb1nKWuJNFiwhp2CqiKzho71DQkDrHJIo4=
@@ -35,7 +35,6 @@ github.com/josharian/native v1.1.0 h1:uuaP0hAbW7Y4l0ZRQ6C9zfb7Mg1mbFKry/xzDAfmtL
 github.com/josharian/native v1.1.0/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
 github.com/jsimonetti/rtnetlink/v2 v2.0.1 h1:xda7qaHDSVOsADNouv7ukSuicKZO7GgVUCXxpaIEIlM=
 github.com/jsimonetti/rtnetlink/v2 v2.0.1/go.mod h1:7MoNYNbb3UaDHtF8udiJo/RH6VsTKP1pqKLUTVCvToE=
-github.com/kisielk/sqlstruct v0.0.0-20201105191214-5f3e10d3ab46/go.mod h1:yyMNCyc/Ib3bDTKd379tNMpB/7/H5TjM2Y9QJ5THLbE=
 github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
 github.com/kr/pretty v0.3.1/go.mod h1:hoEshYVHaxMs3cyo3Yncou5ZscifuDolrwPKZanG3xk=
@@ -80,8 +79,8 @@ go.unistack.org/micro-proto/v3 v3.4.1 h1:UTjLSRz2YZuaHk9iSlVqqsA50JQNAEK2ZFboGqt
 go.unistack.org/micro-proto/v3 v3.4.1/go.mod h1:okx/cnOhzuCX0ggl/vToatbCupi0O44diiiLLsZ93Zo=
 golang.org/x/exp v0.0.0-20241210194714-1829a127f884 h1:Y/Mj/94zIQQGHVSv1tTtQBDaQaJe62U9bkDZKKyhPCU=
 golang.org/x/exp v0.0.0-20241210194714-1829a127f884/go.mod h1:qj5a5QZpwLU2NLQudwIN5koi3beDhSAlJwa67PuM98c=
-golang.org/x/net v0.33.0 h1:74SYHlV8BIgHIFC/LrYkOGIwL19eTYXQ5wc6TBuO36I=
+golang.org/x/net v0.32.0 h1:ZqPmj8Kzc+Y6e0+skZsuACbx+wzMgo5MQsJh9Qd6aYI=
-golang.org/x/net v0.33.0/go.mod h1:HXLR5J+9DxmrqMwG9qjGCxZ+zKXxBru04zlTvWlWuN4=
+golang.org/x/net v0.32.0/go.mod h1:CwU0IoeOlnQQWJ6ioyFrfRuomB8GKF6KbYXZVyeXNfs=
 golang.org/x/sync v0.10.0 h1:3NQrjDixjgGwUOCaF8w2+VYHv0Ve/vGYSbdkTa98gmQ=
 golang.org/x/sync v0.10.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
@@ -89,12 +88,12 @@ golang.org/x/sys v0.28.0 h1:Fksou7UEQUWlKvIdsqzJmUmCX3cZuD2+P3XyyzwMhlA=
 golang.org/x/sys v0.28.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
 golang.org/x/text v0.21.0 h1:zyQAAkrwaneQ066sspRyJaG9VNi/YJ1NfzcGB3hZ/qo=
 golang.org/x/text v0.21.0/go.mod h1:4IBbMaMmOPCJ8SecivzSH54+73PCFmPWxNTLm+vZkEQ=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20241216192217-9240e9c98484 h1:Z7FRVJPSMaHQxD0uXU8WdgFh8PseLM8Q8NzhnpMrBhQ=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20241209162323-e6fa225c2576 h1:8ZmaLZE4XWrtU3MyClkYqqtl6Oegr3235h7jxsDyqCY=
-google.golang.org/genproto/googleapis/rpc v0.0.0-20241216192217-9240e9c98484/go.mod h1:lcTa1sDdWEIHMWlITnIczmw5w60CF9ffkb8Z+DVmmjA=
+google.golang.org/genproto/googleapis/rpc v0.0.0-20241209162323-e6fa225c2576/go.mod h1:5uTbfoYQed2U9p3KIj2/Zzm02PYhndfdmML0qC3q3FU=
-google.golang.org/grpc v1.69.2 h1:U3S9QEtbXC0bYNvRtcoklF3xGtLViumSYxWykJS+7AU=
+google.golang.org/grpc v1.68.1 h1:oI5oTa11+ng8r8XMMN7jAOmWfPZWbYpCFaMUTACxkM0=
-google.golang.org/grpc v1.69.2/go.mod h1:vyjdE6jLBI76dgpDojsFGNaHlxdjXN9ghpnd2o7JGZ4=
+google.golang.org/grpc v1.68.1/go.mod h1:+q1XYFJjShcqn0QZHvCyeR4CXPA+llXIeUIfIe00waw=
-google.golang.org/protobuf v1.36.1 h1:yBPeRvTftaleIgM3PZ/WBIZ7XM/eEYAaEyCwvyjq/gk=
+google.golang.org/protobuf v1.35.2 h1:8Ar7bF+apOIoThw1EdZl0p1oWvMqTHmpA2fRTyZO8io=
-google.golang.org/protobuf v1.36.1/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
+google.golang.org/protobuf v1.35.2/go.mod h1:9fA7Ob0pmnwhb644+1+CVWFRbNajQ6iRojtC/QF5bRE=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=

logger/slog/slog.go

@@ -22,7 +22,6 @@ const (
 	badKey = "!BADKEY"
 	// defaultCallerSkipCount used by logger
 	defaultCallerSkipCount = 3
-	timeFormat             = "2006-01-02T15:04:05.000000000Z07:00"
 )
 
 var reTrace = regexp.MustCompile(`.*/slog/logger\.go.*\n`)
@@ -65,7 +64,6 @@ func (s *slogLogger) renameAttr(_ []string, a slog.Attr) slog.Attr {
 		a.Key = s.opts.SourceKey
 	case slog.TimeKey:
 		a.Key = s.opts.TimeKey
-		a.Value = slog.StringValue(a.Value.Time().Format(timeFormat))
 	case slog.MessageKey:
 		a.Key = s.opts.MessageKey
 	case slog.LevelKey:

logger/slog/slog_test.go

@@ -9,15 +9,12 @@ import (
 	"log/slog"
 	"strings"
 	"testing"
-	"time"
 
 	"github.com/google/uuid"
 	"go.unistack.org/micro/v3/logger"
 	"go.unistack.org/micro/v3/metadata"
-	"go.unistack.org/micro/v3/util/buffer"
 )
 
-// always first to have proper check
 func TestStacktrace(t *testing.T) {
 	ctx := context.TODO()
 	buf := bytes.NewBuffer(nil)
@@ -31,48 +28,7 @@ func TestStacktrace(t *testing.T) {
 
 	l.Error(ctx, "msg1", errors.New("err"))
 
-	if !bytes.Contains(buf.Bytes(), []byte(`slog_test.go:32`)) {
+	if !bytes.Contains(buf.Bytes(), []byte(`slog_test.go:29`)) {
-		t.Fatalf("logger error not works, buf contains: %s", buf.Bytes())
-	}
-}
-
-func TestDelayedBuffer(t *testing.T) {
-	ctx := context.TODO()
-	buf := bytes.NewBuffer(nil)
-	dbuf := buffer.NewDelayedBuffer(100, 100*time.Millisecond, buf)
-	l := NewLogger(logger.WithLevel(logger.ErrorLevel), logger.WithOutput(dbuf),
-		WithHandlerFunc(slog.NewTextHandler),
-		logger.WithAddStacktrace(true),
-	)
-	if err := l.Init(logger.WithFields("key1", "val1")); err != nil {
-		t.Fatal(err)
-	}
-
-	l.Error(ctx, "msg1", errors.New("err"))
-	time.Sleep(120 * time.Millisecond)
-	if !bytes.Contains(buf.Bytes(), []byte(`key1=val1`)) {
-		t.Fatalf("logger delayed buffer not works, buf contains: %s", buf.Bytes())
-	}
-}
-
-func TestTime(t *testing.T) {
-	ctx := context.TODO()
-	buf := bytes.NewBuffer(nil)
-	l := NewLogger(logger.WithLevel(logger.ErrorLevel), logger.WithOutput(buf),
-		WithHandlerFunc(slog.NewTextHandler),
-		logger.WithAddStacktrace(true),
-		logger.WithTimeFunc(func() time.Time {
-			return time.Unix(0, 0)
-		}),
-	)
-	if err := l.Init(logger.WithFields("key1", "val1")); err != nil {
-		t.Fatal(err)
-	}
-
-	l.Error(ctx, "msg1", errors.New("err"))
-
-	if !bytes.Contains(buf.Bytes(), []byte(`timestamp=1970-01-01T03:00:00.000000000+03:00`)) &&
-		!bytes.Contains(buf.Bytes(), []byte(`timestamp=1970-01-01T00:00:00.000000000Z`)) {
 		t.Fatalf("logger error not works, buf contains: %s", buf.Bytes())
 	}
 }

register/extractor.go

@@ -1,9 +1,12 @@
 package register
 
 import (
+	"fmt"
 	"reflect"
 	"unicode"
 	"unicode/utf8"
+
+	"go.unistack.org/micro/v3/metadata"
 )
 
 // ExtractValue from reflect.Type from specified depth
@@ -35,6 +38,53 @@ func ExtractValue(v reflect.Type, d int) string {
 	return v.Name()
 }
 
+// ExtractEndpoint extract *Endpoint from reflect.Method
+func ExtractEndpoint(method reflect.Method) *Endpoint {
+	if method.PkgPath != "" {
+		return nil
+	}
+
+	var rspType, reqType reflect.Type
+	var stream bool
+	mt := method.Type
+
+	switch mt.NumIn() {
+	case 3:
+		reqType = mt.In(1)
+		rspType = mt.In(2)
+	case 4:
+		reqType = mt.In(2)
+		rspType = mt.In(3)
+	default:
+		return nil
+	}
+
+	// are we dealing with a stream?
+	switch rspType.Kind() {
+	case reflect.Func, reflect.Interface:
+		stream = true
+	}
+
+	request := ExtractValue(reqType, 0)
+	response := ExtractValue(rspType, 0)
+	if request == "" || response == "" {
+		return nil
+	}
+
+	ep := &Endpoint{
+		Name:     method.Name,
+		Request:  request,
+		Response: response,
+		Metadata: metadata.New(0),
+	}
+
+	if stream {
+		ep.Metadata.Set("stream", fmt.Sprintf("%v", stream))
+	}
+
+	return ep
+}
+
 // ExtractSubValue exctact *Value from reflect.Type
 func ExtractSubValue(typ reflect.Type) string {
 	var reqType reflect.Type

register/extractor_test.go

@@ -2,6 +2,8 @@ package register
 
 import (
 	"context"
+	"reflect"
+	"testing"
 )
 
 type TestHandler struct{}
@@ -13,3 +15,40 @@ type TestResponse struct{}
 func (t *TestHandler) Test(ctx context.Context, req *TestRequest, rsp *TestResponse) error {
 	return nil
 }
+
+func TestExtractEndpoint(t *testing.T) {
+	handler := &TestHandler{}
+	typ := reflect.TypeOf(handler)
+
+	var endpoints []*Endpoint
+
+	for m := 0; m < typ.NumMethod(); m++ {
+		if e := ExtractEndpoint(typ.Method(m)); e != nil {
+			endpoints = append(endpoints, e)
+		}
+	}
+
+	if i := len(endpoints); i != 1 {
+		t.Fatalf("Expected 1 endpoint, have %d", i)
+	}
+
+	if endpoints[0].Name != "Test" {
+		t.Fatalf("Expected handler Test, got %s", endpoints[0].Name)
+	}
+
+	if endpoints[0].Request == "" {
+		t.Fatal("Expected non nil Request")
+	}
+
+	if endpoints[0].Response == "" {
+		t.Fatal("Expected non nil Request")
+	}
+
+	if endpoints[0].Request != "TestRequest" {
+		t.Fatalf("Expected TestRequest got %s", endpoints[0].Request)
+	}
+
+	if endpoints[0].Response != "TestResponse" {
+		t.Fatalf("Expected TestResponse got %s", endpoints[0].Response)
+	}
+}

register/memory/memory.go

@@ -27,6 +27,7 @@ type record struct {
 	Version   string
 	Metadata  map[string]string
 	Nodes     map[string]*node
+	Endpoints []*register.Endpoint
 }
 
 type memory struct {
@@ -58,7 +59,7 @@ func (m *memory) ttlPrune() {
 
 	for range prune.C {
 		m.Lock()
-		for namespace, services := range m.records {
+		for domain, services := range m.records {
 			for service, versions := range services {
 				for version, record := range versions {
 					for id, n := range record.Nodes {
@@ -66,7 +67,7 @@ func (m *memory) ttlPrune() {
 							if m.opts.Logger.V(logger.DebugLevel) {
 								m.opts.Logger.Debug(m.opts.Context, fmt.Sprintf("Register TTL expired for node %s of service %s", n.ID, service))
 							}
-							delete(m.records[namespace][service][version].Nodes, id)
+							delete(m.records[domain][service][version].Nodes, id)
 						}
 					}
 				}
@@ -130,12 +131,17 @@ func (m *memory) Register(_ context.Context, s *register.Service, opts ...regist
 	options := register.NewRegisterOptions(opts...)
 
 	// get the services for this domain from the register
-	srvs, ok := m.records[options.Namespace]
+	srvs, ok := m.records[options.Domain]
 	if !ok {
 		srvs = make(services)
 	}
 
-	s.Namespace = options.Namespace
+	// domain is set in metadata so it can be passed to watchers
+	if s.Metadata == nil {
+		s.Metadata = map[string]string{"domain": options.Domain}
+	} else {
+		s.Metadata["domain"] = options.Domain
+	}
 
 	// ensure the service name exists
 	r := serviceToRecord(s, options.TTL)
@@ -148,8 +154,8 @@ func (m *memory) Register(_ context.Context, s *register.Service, opts ...regist
 		if m.opts.Logger.V(logger.DebugLevel) {
 			m.opts.Logger.Debug(m.opts.Context, fmt.Sprintf("Register added new service: %s, version: %s", s.Name, s.Version))
 		}
-		m.records[options.Namespace] = srvs
+		m.records[options.Domain] = srvs
-		go m.sendEvent(&register.Result{Action: register.EventCreate, Service: s})
+		go m.sendEvent(&register.Result{Action: "create", Service: s})
 	}
 
 	var addedNodes bool
@@ -167,6 +173,9 @@ func (m *memory) Register(_ context.Context, s *register.Service, opts ...regist
 			metadata[k] = v
 		}
 
+		// set the domain
+		metadata["domain"] = options.Domain
+
 		// add the node
 		srvs[s.Name][s.Version].Nodes[n.ID] = &node{
 			Node: &register.Node{
@@ -185,7 +194,7 @@ func (m *memory) Register(_ context.Context, s *register.Service, opts ...regist
 		if m.opts.Logger.V(logger.DebugLevel) {
 			m.opts.Logger.Debug(m.opts.Context, fmt.Sprintf("Register added new node to service: %s, version: %s", s.Name, s.Version))
 		}
-		go m.sendEvent(&register.Result{Action: register.EventUpdate, Service: s})
+		go m.sendEvent(&register.Result{Action: "update", Service: s})
 	} else {
 		// refresh TTL and timestamp
 		for _, n := range s.Nodes {
@@ -197,7 +206,7 @@ func (m *memory) Register(_ context.Context, s *register.Service, opts ...regist
 		}
 	}
 
-	m.records[options.Namespace] = srvs
+	m.records[options.Domain] = srvs
 	return nil
 }
 
@@ -207,8 +216,15 @@ func (m *memory) Deregister(ctx context.Context, s *register.Service, opts ...re
 
 	options := register.NewDeregisterOptions(opts...)
 
+	// domain is set in metadata so it can be passed to watchers
+	if s.Metadata == nil {
+		s.Metadata = map[string]string{"domain": options.Domain}
+	} else {
+		s.Metadata["domain"] = options.Domain
+	}
+
 	// if the domain doesn't exist, there is nothing to deregister
-	services, ok := m.records[options.Namespace]
+	services, ok := m.records[options.Domain]
 	if !ok {
 		return nil
 	}
@@ -237,16 +253,16 @@ func (m *memory) Deregister(ctx context.Context, s *register.Service, opts ...re
 	// if the nodes not empty, we replace the version in the store and exist, the rest of the logic
 	// is cleanup
 	if len(version.Nodes) > 0 {
-		m.records[options.Namespace][s.Name][s.Version] = version
+		m.records[options.Domain][s.Name][s.Version] = version
-		go m.sendEvent(&register.Result{Action: register.EventUpdate, Service: s})
+		go m.sendEvent(&register.Result{Action: "update", Service: s})
 		return nil
 	}
 
 	// if this version was the only version of the service, we can remove the whole service from the
 	// register and exit
 	if len(versions) == 1 {
-		delete(m.records[options.Namespace], s.Name)
+		delete(m.records[options.Domain], s.Name)
-		go m.sendEvent(&register.Result{Action: register.EventDelete, Service: s})
+		go m.sendEvent(&register.Result{Action: "delete", Service: s})
 
 		if m.opts.Logger.V(logger.DebugLevel) {
 			m.opts.Logger.Debug(m.opts.Context, fmt.Sprintf("Register removed service: %s", s.Name))
@@ -255,8 +271,8 @@ func (m *memory) Deregister(ctx context.Context, s *register.Service, opts ...re
 	}
 
 	// there are other versions of the service running, so only remove this version of it
-	delete(m.records[options.Namespace][s.Name], s.Version)
+	delete(m.records[options.Domain][s.Name], s.Version)
-	go m.sendEvent(&register.Result{Action: register.EventDelete, Service: s})
+	go m.sendEvent(&register.Result{Action: "delete", Service: s})
 	if m.opts.Logger.V(logger.DebugLevel) {
 		m.opts.Logger.Debug(m.opts.Context, fmt.Sprintf("Register removed service: %s, version: %s", s.Name, s.Version))
 	}
@@ -268,15 +284,15 @@ func (m *memory) LookupService(ctx context.Context, name string, opts ...registe
 	options := register.NewLookupOptions(opts...)
 
 	// if it's a wildcard domain, return from all domains
-	if options.Namespace == register.WildcardNamespace {
+	if options.Domain == register.WildcardDomain {
 		m.RLock()
 		recs := m.records
 		m.RUnlock()
 
 		var services []*register.Service
 
-		for namespace := range recs {
+		for domain := range recs {
-			srvs, err := m.LookupService(ctx, name, append(opts, register.LookupNamespace(namespace))...)
+			srvs, err := m.LookupService(ctx, name, append(opts, register.LookupDomain(domain))...)
 			if err == register.ErrNotFound {
 				continue
 			} else if err != nil {
@@ -295,7 +311,7 @@ func (m *memory) LookupService(ctx context.Context, name string, opts ...registe
 	defer m.RUnlock()
 
 	// check the domain exists
-	services, ok := m.records[options.Namespace]
+	services, ok := m.records[options.Domain]
 	if !ok {
 		return nil, register.ErrNotFound
 	}
@@ -312,7 +328,7 @@ func (m *memory) LookupService(ctx context.Context, name string, opts ...registe
 	var i int
 
 	for _, r := range versions {
-		result[i] = recordToService(r, options.Namespace)
+		result[i] = recordToService(r, options.Domain)
 		i++
 	}
 
@@ -323,15 +339,15 @@ func (m *memory) ListServices(ctx context.Context, opts ...register.ListOption)
 	options := register.NewListOptions(opts...)
 
 	// if it's a wildcard domain, list from all domains
-	if options.Namespace == register.WildcardNamespace {
+	if options.Domain == register.WildcardDomain {
 		m.RLock()
 		recs := m.records
 		m.RUnlock()
 
 		var services []*register.Service
 
-		for namespace := range recs {
+		for domain := range recs {
-			srvs, err := m.ListServices(ctx, append(opts, register.ListNamespace(namespace))...)
+			srvs, err := m.ListServices(ctx, append(opts, register.ListDomain(domain))...)
 			if err != nil {
 				return nil, err
 			}
@@ -345,7 +361,7 @@ func (m *memory) ListServices(ctx context.Context, opts ...register.ListOption)
 	defer m.RUnlock()
 
 	// ensure the domain exists
-	services, ok := m.records[options.Namespace]
+	services, ok := m.records[options.Domain]
 	if !ok {
 		return make([]*register.Service, 0), nil
 	}
@@ -355,7 +371,7 @@ func (m *memory) ListServices(ctx context.Context, opts ...register.ListOption)
 
 	for _, service := range services {
 		for _, version := range service {
-			result = append(result, recordToService(version, options.Namespace))
+			result = append(result, recordToService(version, options.Domain))
 		}
 	}
 
@@ -410,13 +426,16 @@ func (m *watcher) Next() (*register.Result, error) {
 				continue
 			}
 
-			namespace := register.DefaultNamespace
+			// extract domain from service metadata
-			if r.Service.Namespace != "" {
+			var domain string
-				namespace = r.Service.Namespace
+			if r.Service.Metadata != nil && len(r.Service.Metadata["domain"]) > 0 {
+				domain = r.Service.Metadata["domain"]
+			} else {
+				domain = register.DefaultDomain
 			}
 
 			// only send the event if watching the wildcard or this specific domain
-			if m.wo.Namespace == register.WildcardNamespace || m.wo.Namespace == namespace {
+			if m.wo.Domain == register.WildcardDomain || m.wo.Domain == domain {
 				return r, nil
 			}
 		case <-m.exit:
@@ -435,6 +454,11 @@ func (m *watcher) Stop() {
 }
 
 func serviceToRecord(s *register.Service, ttl time.Duration) *record {
+	metadata := make(map[string]string, len(s.Metadata))
+	for k, v := range s.Metadata {
+		metadata[k] = v
+	}
+
 	nodes := make(map[string]*node, len(s.Nodes))
 	for _, n := range s.Nodes {
 		nodes[n.ID] = &node{
@@ -444,19 +468,42 @@ func serviceToRecord(s *register.Service, ttl time.Duration) *record {
 		}
 	}
 
+	endpoints := make([]*register.Endpoint, len(s.Endpoints))
+	copy(endpoints, s.Endpoints)
+
 	return &record{
 		Name:      s.Name,
 		Version:   s.Version,
+		Metadata:  metadata,
 		Nodes:     nodes,
+		Endpoints: endpoints,
 	}
 }
 
-func recordToService(r *record, namespace string) *register.Service {
+func recordToService(r *record, domain string) *register.Service {
 	metadata := make(map[string]string, len(r.Metadata))
 	for k, v := range r.Metadata {
 		metadata[k] = v
 	}
 
+	// set the domain in metadata so it can be determined when a wildcard query is performed
+	metadata["domain"] = domain
+
+	endpoints := make([]*register.Endpoint, len(r.Endpoints))
+	for i, e := range r.Endpoints {
+		md := make(map[string]string, len(e.Metadata))
+		for k, v := range e.Metadata {
+			md[k] = v
+		}
+
+		endpoints[i] = &register.Endpoint{
+			Name:     e.Name,
+			Request:  e.Request,
+			Response: e.Response,
+			Metadata: md,
+		}
+	}
+
 	nodes := make([]*register.Node, len(r.Nodes))
 	i := 0
 	for _, n := range r.Nodes {
@@ -476,7 +523,8 @@ func recordToService(r *record, namespace string) *register.Service {
 	return &register.Service{
 		Name:      r.Name,
 		Version:   r.Version,
+		Metadata:  metadata,
+		Endpoints: endpoints,
 		Nodes:     nodes,
-		Namespace: namespace,
 	}
 }

register/memory/memory_test.go

@@ -253,32 +253,32 @@ func TestMemoryWildcard(t *testing.T) {
 
 	testSrv := &register.Service{Name: "foo", Version: "1.0.0"}
 
-	if err := m.Register(ctx, testSrv, register.RegisterNamespace("one")); err != nil {
+	if err := m.Register(ctx, testSrv, register.RegisterDomain("one")); err != nil {
 		t.Fatalf("Register err: %v", err)
 	}
-	if err := m.Register(ctx, testSrv, register.RegisterNamespace("two")); err != nil {
+	if err := m.Register(ctx, testSrv, register.RegisterDomain("two")); err != nil {
 		t.Fatalf("Register err: %v", err)
 	}
 
-	if recs, err := m.ListServices(ctx, register.ListNamespace("one")); err != nil {
+	if recs, err := m.ListServices(ctx, register.ListDomain("one")); err != nil {
 		t.Errorf("List err: %v", err)
 	} else if len(recs) != 1 {
 		t.Errorf("Expected 1 record, got %v", len(recs))
 	}
 
-	if recs, err := m.ListServices(ctx, register.ListNamespace("*")); err != nil {
+	if recs, err := m.ListServices(ctx, register.ListDomain("*")); err != nil {
 		t.Errorf("List err: %v", err)
 	} else if len(recs) != 2 {
 		t.Errorf("Expected 2 records, got %v", len(recs))
 	}
 
-	if recs, err := m.LookupService(ctx, testSrv.Name, register.LookupNamespace("one")); err != nil {
+	if recs, err := m.LookupService(ctx, testSrv.Name, register.LookupDomain("one")); err != nil {
 		t.Errorf("Lookup err: %v", err)
 	} else if len(recs) != 1 {
 		t.Errorf("Expected 1 record, got %v", len(recs))
 	}
 
-	if recs, err := m.LookupService(ctx, testSrv.Name, register.LookupNamespace("*")); err != nil {
+	if recs, err := m.LookupService(ctx, testSrv.Name, register.LookupDomain("*")); err != nil {
 		t.Errorf("Lookup err: %v", err)
 	} else if len(recs) != 2 {
 		t.Errorf("Expected 2 records, got %v", len(recs))

register/options.go

@@ -5,7 +5,6 @@ import (
 	"crypto/tls"
 	"time"
 
-	"go.unistack.org/micro/v3/codec"
 	"go.unistack.org/micro/v3/logger"
 	"go.unistack.org/micro/v3/meter"
 	"go.unistack.org/micro/v3/tracer"
@@ -27,8 +26,6 @@ type Options struct {
 	Name string
 	// Addrs specifies register addrs
 	Addrs []string
-	// Codec used to marshal/unmarshal data in register
-	Codec codec.Codec
 	// Timeout specifies timeout
 	Timeout time.Duration
 }
@@ -40,7 +37,6 @@ func NewOptions(opts ...Option) Options {
 		Meter:   meter.DefaultMeter,
 		Tracer:  tracer.DefaultTracer,
 		Context: context.Background(),
-		Codec:   codec.NewCodec(),
 	}
 	for _, o := range opts {
 		o(&options)
@@ -51,7 +47,7 @@ func NewOptions(opts ...Option) Options {
 // RegisterOptions holds options for register method
 type RegisterOptions struct { // nolint: golint,revive
 	Context  context.Context
-	Namespace string
+	Domain   string
 	TTL      time.Duration
 	Attempts int
 }
@@ -59,7 +55,7 @@ type RegisterOptions struct { // nolint: golint,revive
 // NewRegisterOptions returns register options struct filled by opts
 func NewRegisterOptions(opts ...RegisterOption) RegisterOptions {
 	options := RegisterOptions{
-		Namespace: DefaultNamespace,
+		Domain:  DefaultDomain,
 		Context: context.Background(),
 	}
 	for _, o := range opts {
@@ -76,14 +72,14 @@ type WatchOptions struct {
 	// Other options for implementations of the interface
 	// can be stored in a context
 	Context context.Context
-	// Namespace to watch
+	// Domain to watch
-	Namespace string
+	Domain string
 }
 
 // NewWatchOptions returns watch options filled by opts
 func NewWatchOptions(opts ...WatchOption) WatchOptions {
 	options := WatchOptions{
-		Namespace: DefaultNamespace,
+		Domain:  DefaultDomain,
 		Context: context.Background(),
 	}
 	for _, o := range opts {
@@ -95,8 +91,8 @@ func NewWatchOptions(opts ...WatchOption) WatchOptions {
 // DeregisterOptions holds options for deregister method
 type DeregisterOptions struct {
 	Context context.Context
-	// Namespace the service was registered in
+	// Domain the service was registered in
-	Namespace string
+	Domain string
 	// Atempts specify max attempts for deregister
 	Attempts int
 }
@@ -104,7 +100,7 @@ type DeregisterOptions struct {
 // NewDeregisterOptions returns options for deregister filled by opts
 func NewDeregisterOptions(opts ...DeregisterOption) DeregisterOptions {
 	options := DeregisterOptions{
-		Namespace: DefaultNamespace,
+		Domain:  DefaultDomain,
 		Context: context.Background(),
 	}
 	for _, o := range opts {
@@ -116,14 +112,14 @@ func NewDeregisterOptions(opts ...DeregisterOption) DeregisterOptions {
 // LookupOptions holds lookup options
 type LookupOptions struct {
 	Context context.Context
-	// Namespace to scope the request to
+	// Domain to scope the request to
-	Namespace string
+	Domain string
 }
 
 // NewLookupOptions returns lookup options filled by opts
 func NewLookupOptions(opts ...LookupOption) LookupOptions {
 	options := LookupOptions{
-		Namespace: DefaultNamespace,
+		Domain:  DefaultDomain,
 		Context: context.Background(),
 	}
 	for _, o := range opts {
@@ -134,16 +130,15 @@ func NewLookupOptions(opts ...LookupOption) LookupOptions {
 
 // ListOptions holds the list options for list method
 type ListOptions struct {
-	// Context used to store additional options
 	Context context.Context
-	// Namespace to scope the request to
+	// Domain to scope the request to
-	Namespace string
+	Domain string
 }
 
 // NewListOptions returns list options filled by opts
 func NewListOptions(opts ...ListOption) ListOptions {
 	options := ListOptions{
-		Namespace: DefaultNamespace,
+		Domain:  DefaultDomain,
 		Context: context.Background(),
 	}
 	for _, o := range opts {
@@ -222,10 +217,10 @@ func RegisterContext(ctx context.Context) RegisterOption { // nolint: golint,rev
 	}
 }
 
-// RegisterNamespace secifies register Namespace
+// RegisterDomain secifies register domain
-func RegisterNamespace(d string) RegisterOption { // nolint: golint,revive
+func RegisterDomain(d string) RegisterOption { // nolint: golint,revive
 	return func(o *RegisterOptions) {
-		o.Namespace = d
+		o.Domain = d
 	}
 }
 
@@ -243,10 +238,10 @@ func WatchContext(ctx context.Context) WatchOption {
 	}
 }
 
-// WatchNamespace sets the Namespace for watch
+// WatchDomain sets the domain for watch
-func WatchNamespace(d string) WatchOption {
+func WatchDomain(d string) WatchOption {
 	return func(o *WatchOptions) {
-		o.Namespace = d
+		o.Domain = d
 	}
 }
 
@@ -264,10 +259,10 @@ func DeregisterContext(ctx context.Context) DeregisterOption {
 	}
 }
 
-// DeregisterNamespace specifies deregister Namespace
+// DeregisterDomain specifies deregister domain
-func DeregisterNamespace(d string) DeregisterOption {
+func DeregisterDomain(d string) DeregisterOption {
 	return func(o *DeregisterOptions) {
-		o.Namespace = d
+		o.Domain = d
 	}
 }
 
@@ -278,10 +273,10 @@ func LookupContext(ctx context.Context) LookupOption {
 	}
 }
 
-// LookupNamespace sets the Namespace for lookup
+// LookupDomain sets the domain for lookup
-func LookupNamespace(d string) LookupOption {
+func LookupDomain(d string) LookupOption {
 	return func(o *LookupOptions) {
-		o.Namespace = d
+		o.Domain = d
 	}
 }
 
@@ -292,10 +287,10 @@ func ListContext(ctx context.Context) ListOption {
 	}
 }
 
-// ListNamespace sets the Namespace for list method
+// ListDomain sets the domain for list method
-func ListNamespace(d string) ListOption {
+func ListDomain(d string) ListOption {
 	return func(o *ListOptions) {
-		o.Namespace = d
+		o.Domain = d
 	}
 }
 
@@ -305,9 +300,3 @@ func Name(n string) Option {
 		o.Name = n
 	}
 }
-
-func Codec(c codec.Codec) Option {
-	return func(o *Options) {
-		o.Codec = c
-	}
-}

register/register.go

@@ -9,12 +9,12 @@ import (
 )
 
 const (
-	// WildcardNamespace indicates any Namespace
+	// WildcardDomain indicates any domain
-	WildcardNamespace = "*"
+	WildcardDomain = "*"
 )
 
-// DefaultNamespace to use if none was provided in options
+// DefaultDomain to use if none was provided in options
-var DefaultNamespace = "micro"
+var DefaultDomain = "micro"
 
 var (
 	// DefaultRegister is the global default register
@@ -59,17 +59,26 @@ type Register interface {
 
 // Service holds service register info
 type Service struct {
-	Name      string  `json:"name,omitempty"`
+	Name      string            `json:"name"`
-	Version   string  `json:"version,omitempty"`
+	Version   string            `json:"version"`
-	Nodes     []*Node `json:"nodes,omitempty"`
+	Metadata  metadata.Metadata `json:"metadata"`
-	Namespace string  `json:"namespace,omitempty"`
+	Endpoints []*Endpoint       `json:"endpoints"`
+	Nodes     []*Node           `json:"nodes"`
 }
 
 // Node holds node register info
 type Node struct {
-	Metadata metadata.Metadata `json:"metadata,omitempty"`
+	Metadata metadata.Metadata `json:"metadata"`
-	ID       string            `json:"id,omitempty"`
+	ID       string            `json:"id"`
-	Address  string            `json:"address,omitempty"`
+	Address  string            `json:"address"`
+}
+
+// Endpoint holds endpoint register info
+type Endpoint struct {
+	Request  string            `json:"request"`
+	Response string            `json:"response"`
+	Metadata metadata.Metadata `json:"metadata"`
+	Name     string            `json:"name"`
 }
 
 // Option func signature

register/watcher.go

@@ -15,31 +15,31 @@ type Watcher interface {
 // the watcher. Actions can be create, update, delete
 type Result struct {
 	// Service holds register service
-	Service *Service `json:"service,omitempty"`
+	Service *Service
 	// Action holds the action
-	Action EventType `json:"action,omitempty"`
+	Action string
 }
 
 // EventType defines register event type
 type EventType int
 
 const (
-	// EventCreate is emitted when a new service is registered
+	// Create is emitted when a new service is registered
-	EventCreate EventType = iota
+	Create EventType = iota
-	// EventDelete is emitted when an existing service is deregistered
+	// Delete is emitted when an existing service is deregistered
-	EventDelete
+	Delete
-	// EventUpdate is emitted when an existing service is updated
+	// Update is emitted when an existing service is updated
-	EventUpdate
+	Update
 )
 
 // String returns human readable event type
 func (t EventType) String() string {
 	switch t {
-	case EventCreate:
+	case Create:
 		return "create"
-	case EventDelete:
+	case Delete:
 		return "delete"
-	case EventUpdate:
+	case Update:
 		return "update"
 	default:
 		return "unknown"
@@ -49,11 +49,11 @@ func (t EventType) String() string {
 // Event is register event
 type Event struct {
 	// Timestamp is event timestamp
-	Timestamp time.Time `json:"timestamp,omitempty"`
+	Timestamp time.Time
 	// Service is register service
-	Service *Service `json:"service,omitempty"`
+	Service *Service
 	// ID is register id
-	ID string `json:"id,omitempty"`
+	ID string
 	// Type defines type of event
-	Type EventType `json:"type,omitempty"`
+	Type EventType
 }

server/noop.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"reflect"
 	"runtime/debug"
+	"sort"
 	"strings"
 	"sync"
 	"time"
@@ -34,17 +35,34 @@ type rpcHandler struct {
 	opts      HandlerOptions
 	handler   interface{}
 	name      string
+	endpoints []*register.Endpoint
 }
 
 func newRPCHandler(handler interface{}, opts ...HandlerOption) Handler {
 	options := NewHandlerOptions(opts...)
 
+	typ := reflect.TypeOf(handler)
 	hdlr := reflect.ValueOf(handler)
 	name := reflect.Indirect(hdlr).Type().Name()
 
+	var endpoints []*register.Endpoint
+
+	for m := 0; m < typ.NumMethod(); m++ {
+		if e := register.ExtractEndpoint(typ.Method(m)); e != nil {
+			e.Name = name + "." + e.Name
+
+			for k, v := range options.Metadata[e.Name] {
+				e.Metadata[k] = v
+			}
+
+			endpoints = append(endpoints, e)
+		}
+	}
+
 	return &rpcHandler{
 		name:      name,
 		handler:   handler,
+		endpoints: endpoints,
 		opts:      options,
 	}
 }
@@ -57,6 +75,10 @@ func (r *rpcHandler) Handler() interface{} {
 	return r.handler
 }
 
+func (r *rpcHandler) Endpoints() []*register.Endpoint {
+	return r.endpoints
+}
+
 func (r *rpcHandler) Options() HandlerOptions {
 	return r.opts
 }
@@ -227,6 +249,35 @@ func (n *noopServer) Register() error {
 		return err
 	}
 
+	n.RLock()
+	handlerList := make([]string, 0, len(n.handlers))
+	for n := range n.handlers {
+		handlerList = append(handlerList, n)
+	}
+
+	sort.Strings(handlerList)
+
+	subscriberList := make([]*subscriber, 0, len(n.subscribers))
+	for e := range n.subscribers {
+		subscriberList = append(subscriberList, e)
+	}
+	sort.Slice(subscriberList, func(i, j int) bool {
+		return subscriberList[i].topic > subscriberList[j].topic
+	})
+
+	endpoints := make([]*register.Endpoint, 0, len(handlerList)+len(subscriberList))
+	for _, h := range handlerList {
+		endpoints = append(endpoints, n.handlers[h].Endpoints()...)
+	}
+	for _, e := range subscriberList {
+		endpoints = append(endpoints, e.Endpoints()...)
+	}
+	n.RUnlock()
+
+	service.Nodes[0].Metadata["protocol"] = "noop"
+	service.Nodes[0].Metadata["transport"] = service.Nodes[0].Metadata["protocol"]
+	service.Endpoints = endpoints
+
 	n.RLock()
 	registered := n.registered
 	n.RUnlock()
@@ -525,6 +576,7 @@ func (n *noopServer) Stop() error {
 }
 
 func newSubscriber(topic string, sub interface{}, opts ...SubscriberOption) Subscriber {
+	var endpoints []*register.Endpoint
 	var handlers []*handler
 
 	options := NewSubscriberOptions(opts...)
@@ -543,7 +595,18 @@ func newSubscriber(topic string, sub interface{}, opts ...SubscriberOption) Subs
 		}
 
 		handlers = append(handlers, h)
+		ep := &register.Endpoint{
+			Name:     "Func",
+			Request:  register.ExtractSubValue(typ),
+			Metadata: metadata.New(2),
+		}
+		ep.Metadata.Set("topic", topic)
+		ep.Metadata.Set("subscriber", "true")
+		endpoints = append(endpoints, ep)
 	} else {
+		hdlr := reflect.ValueOf(sub)
+		name := reflect.Indirect(hdlr).Type().Name()
+
 		for m := 0; m < typ.NumMethod(); m++ {
 			method := typ.Method(m)
 			h := &handler{
@@ -559,6 +622,14 @@ func newSubscriber(topic string, sub interface{}, opts ...SubscriberOption) Subs
 			}
 
 			handlers = append(handlers, h)
+			ep := &register.Endpoint{
+				Name:     name + "." + method.Name,
+				Request:  register.ExtractSubValue(method.Type),
+				Metadata: metadata.New(2),
+			}
+			ep.Metadata.Set("topic", topic)
+			ep.Metadata.Set("subscriber", "true")
+			endpoints = append(endpoints, ep)
 		}
 	}
 
@@ -568,6 +639,7 @@ func newSubscriber(topic string, sub interface{}, opts ...SubscriberOption) Subs
 		topic:      topic,
 		subscriber: sub,
 		handlers:   handlers,
+		endpoints:  endpoints,
 		opts:       options,
 	}
 }
@@ -694,6 +766,10 @@ func (s *subscriber) Subscriber() interface{} {
 	return s.subscriber
 }
 
+func (s *subscriber) Endpoints() []*register.Endpoint {
+	return s.endpoints
+}
+
 func (s *subscriber) Options() SubscriberOptions {
 	return s.opts
 }
@@ -704,6 +780,7 @@ type subscriber struct {
 	typ        reflect.Type
 	subscriber interface{}
 
+	endpoints []*register.Endpoint
 	handlers  []*handler
 
 	rcvr reflect.Value

server/registry.go

@@ -17,7 +17,7 @@ var (
 
 		opts := []register.RegisterOption{
 			register.RegisterTTL(config.RegisterTTL),
-			register.RegisterNamespace(config.Namespace),
+			register.RegisterDomain(config.Namespace),
 		}
 
 		for i := 0; i <= config.RegisterAttempts; i++ {
@@ -36,7 +36,7 @@ var (
 		var err error
 
 		opts := []register.DeregisterOption{
-			register.DeregisterNamespace(config.Namespace),
+			register.DeregisterDomain(config.Namespace),
 		}
 
 		for i := 0; i <= config.DeregisterAttempts; i++ {
@@ -85,5 +85,6 @@ func NewRegisterService(s Server) (*register.Service, error) {
 		Name:     opts.Name,
 		Version:  opts.Version,
 		Nodes:    []*register.Node{node},
+		Metadata: metadata.New(0),
 	}, nil
 }

server/server.go

@@ -7,6 +7,7 @@ import (
 
 	"go.unistack.org/micro/v3/codec"
 	"go.unistack.org/micro/v3/metadata"
+	"go.unistack.org/micro/v3/register"
 )
 
 // DefaultServer default server
@@ -169,6 +170,7 @@ type Stream interface {
 type Handler interface {
 	Name() string
 	Handler() interface{}
+	Endpoints() []*register.Endpoint
 	Options() HandlerOptions
 }
 
@@ -178,5 +180,6 @@ type Handler interface {
 type Subscriber interface {
 	Topic() string
 	Subscriber() interface{}
+	Endpoints() []*register.Endpoint
 	Options() SubscriberOptions
 }

util/buf/buf.go

@@ -0,0 +1,27 @@
+package buf
+
+import (
+	"bytes"
+	"io"
+)
+
+var _ io.Closer = &Buffer{}
+
+// Buffer bytes.Buffer wrapper to satisfie io.Closer interface
+type Buffer struct {
+	*bytes.Buffer
+}
+
+// Close reset buffer contents
+func (b *Buffer) Close() error {
+	b.Buffer.Reset()
+	return nil
+}
+
+// New creates new buffer that satisfies Closer interface
+func New(b *bytes.Buffer) *Buffer {
+	if b == nil {
+		b = bytes.NewBuffer(nil)
+	}
+	return &Buffer{b}
+}

util/buffer/delayed_buffer.go

@@ -1,85 +0,0 @@
-package buffer
-
-import (
-	"io"
-	"sync"
-	"time"
-)
-
-var _ io.WriteCloser = (*DelayedBuffer)(nil)
-
-// DelayedBuffer is the buffer that holds items until either the buffer filled or a specified time limit is reached
-type DelayedBuffer struct {
-	mu        sync.Mutex
-	maxWait   time.Duration
-	flushTime time.Time
-	buffer    chan []byte
-	ticker    *time.Ticker
-	w         io.Writer
-	err       error
-}
-
-func NewDelayedBuffer(size int, maxWait time.Duration, w io.Writer) *DelayedBuffer {
-	b := &DelayedBuffer{
-		buffer:    make(chan []byte, size),
-		ticker:    time.NewTicker(maxWait),
-		w:         w,
-		flushTime: time.Now(),
-		maxWait:   maxWait,
-	}
-	b.loop()
-	return b
-}
-
-func (b *DelayedBuffer) loop() {
-	go func() {
-		for range b.ticker.C {
-			b.mu.Lock()
-			if time.Since(b.flushTime) > b.maxWait {
-				b.flush()
-			}
-			b.mu.Unlock()
-		}
-	}()
-}
-
-func (b *DelayedBuffer) flush() {
-	bufLen := len(b.buffer)
-	if bufLen > 0 {
-		tmp := make([][]byte, bufLen)
-		for i := 0; i < bufLen; i++ {
-			tmp[i] = <-b.buffer
-		}
-		for _, t := range tmp {
-			_, b.err = b.w.Write(t)
-		}
-		b.flushTime = time.Now()
-	}
-}
-
-func (b *DelayedBuffer) Put(items ...[]byte) {
-	b.mu.Lock()
-	for _, item := range items {
-		select {
-		case b.buffer <- item:
-		default:
-			b.flush()
-			b.buffer <- item
-		}
-	}
-	b.mu.Unlock()
-}
-
-func (b *DelayedBuffer) Close() error {
-	b.mu.Lock()
-	b.flush()
-	close(b.buffer)
-	b.ticker.Stop()
-	b.mu.Unlock()
-	return b.err
-}
-
-func (b *DelayedBuffer) Write(data []byte) (int, error) {
-	b.Put(data)
-	return len(data), b.err
-}

util/buffer/delayed_buffer_test.go

@@ -1,22 +0,0 @@
-package buffer
-
-import (
-	"bytes"
-	"testing"
-	"time"
-)
-
-func TestTimedBuffer(t *testing.T) {
-	buf := bytes.NewBuffer(nil)
-	b := NewDelayedBuffer(100, 300*time.Millisecond, buf)
-	for i := 0; i < 100; i++ {
-		_, _ = b.Write([]byte(`test`))
-	}
-	if buf.Len() != 0 {
-		t.Fatal("delayed write not worked")
-	}
-	time.Sleep(400 * time.Millisecond)
-	if buf.Len() == 0 {
-		t.Fatal("delayed write not worked")
-	}
-}

util/buffer/seeker_buffer.go

@@ -1,78 +0,0 @@
-package buffer
-
-import "io"
-
-var _ interface {
-	io.ReadCloser
-	io.ReadSeeker
-} = (*SeekerBuffer)(nil)
-
-// Buffer is a ReadWriteCloser that supports seeking. It's intended to
-// replicate the functionality of bytes.Buffer that I use in my projects.
-//
-// Note that the seeking is limited to the read marker; all writes are
-// append-only.
-type SeekerBuffer struct {
-	data []byte
-	pos  int64
-}
-
-func NewSeekerBuffer(data []byte) *SeekerBuffer {
-	return &SeekerBuffer{
-		data: data,
-	}
-}
-
-func (b *SeekerBuffer) Read(p []byte) (int, error) {
-	if b.pos >= int64(len(b.data)) {
-		return 0, io.EOF
-	}
-
-	n := copy(p, b.data[b.pos:])
-	b.pos += int64(n)
-	return n, nil
-}
-
-func (b *SeekerBuffer) Write(p []byte) (int, error) {
-	b.data = append(b.data, p...)
-	return len(p), nil
-}
-
-// Seek sets the read pointer to pos.
-func (b *SeekerBuffer) Seek(offset int64, whence int) (int64, error) {
-	switch whence {
-	case io.SeekStart:
-		b.pos = offset
-	case io.SeekEnd:
-		b.pos = int64(len(b.data)) + offset
-	case io.SeekCurrent:
-		b.pos += offset
-	}
-
-	return b.pos, nil
-}
-
-// Rewind resets the read pointer to 0.
-func (b *SeekerBuffer) Rewind() error {
-	if _, err := b.Seek(0, io.SeekStart); err != nil {
-		return err
-	}
-	return nil
-}
-
-// Close clears all the data out of the buffer and sets the read position to 0.
-func (b *SeekerBuffer) Close() error {
-	b.data = nil
-	b.pos = 0
-	return nil
-}
-
-// Len returns the length of data remaining to be read.
-func (b *SeekerBuffer) Len() int {
-	return len(b.data[b.pos:])
-}
-
-// Bytes returns the underlying bytes from the current position.
-func (b *SeekerBuffer) Bytes() []byte {
-	return b.data[b.pos:]
-}

util/buffer/seeker_buffer_test.go

@@ -1,55 +0,0 @@
-package buffer
-
-import (
-	"fmt"
-	"strings"
-	"testing"
-)
-
-func noErrorT(t *testing.T, err error) {
-	if nil != err {
-		t.Fatalf("%s", err)
-	}
-}
-
-func boolT(t *testing.T, cond bool, s ...string) {
-	if !cond {
-		what := strings.Join(s, ", ")
-		if len(what) > 0 {
-			what = ": " + what
-		}
-		t.Fatalf("assert.Bool failed%s", what)
-	}
-}
-
-func TestSeeking(t *testing.T) {
-	partA := []byte("hello, ")
-	partB := []byte("world!")
-
-	buf := NewSeekerBuffer(partA)
-
-	boolT(t, buf.Len() == len(partA), fmt.Sprintf("on init: have length %d, want length %d", buf.Len(), len(partA)))
-
-	b := make([]byte, 32)
-
-	n, err := buf.Read(b)
-	noErrorT(t, err)
-	boolT(t, buf.Len() == 0, fmt.Sprintf("after reading 1: have length %d, want length 0", buf.Len()))
-	boolT(t, n == len(partA), fmt.Sprintf("after reading 2: have length %d, want length %d", n, len(partA)))
-
-	n, err = buf.Write(partB)
-	noErrorT(t, err)
-	boolT(t, n == len(partB), fmt.Sprintf("after writing: have length %d, want length %d", n, len(partB)))
-
-	n, err = buf.Read(b)
-	noErrorT(t, err)
-	boolT(t, buf.Len() == 0, fmt.Sprintf("after rereading 1: have length %d, want length 0", buf.Len()))
-	boolT(t, n == len(partB), fmt.Sprintf("after rereading 2: have length %d, want length %d", n, len(partB)))
-
-	partsLen := len(partA) + len(partB)
-	_ = buf.Rewind()
-	boolT(t, buf.Len() == partsLen, fmt.Sprintf("after rewinding: have length %d, want length %d", buf.Len(), partsLen))
-
-	buf.Close()
-	boolT(t, buf.Len() == 0, fmt.Sprintf("after closing, have length %d, want length 0", buf.Len()))
-}

util/id/id.go

@@ -8,7 +8,6 @@ import (
 	"time"
 
 	uuidv8 "github.com/ash3in/uuidv8"
-	"github.com/google/uuid"
 	nanoid "github.com/matoous/go-nanoid"
 )
 
@@ -97,10 +96,6 @@ func New(opts ...Option) (string, error) {
 	return "", errors.New("invalid option, Type unspecified")
 }
 
-func ToUUID(s string) uuid.UUID {
-	return uuid.MustParse(s)
-}
-
 // Must is the same as New but fatals on error
 func MustNew(opts ...Option) string {
 	id, err := New(opts...)

util/id/id_test.go

@@ -7,14 +7,5 @@ func TestUUIDv8(t *testing.T) {
 	if err != nil {
 		t.Fatal(err)
 	}
-	_ = id
+	t.Logf("xxx %s\n", id)
-}
-
-func TestToUUID(t *testing.T) {
-	id, err := New()
-	if err != nil {
-		t.Fatal(err)
-	}
-	u := ToUUID(id)
-	_ = u
 }

util/register/util.go

@@ -71,6 +71,14 @@ func CopyService(service *register.Service) *register.Service {
 	}
 	s.Nodes = nodes
 
+	// copy endpoints
+	eps := make([]*register.Endpoint, len(service.Endpoints))
+	for j, ep := range service.Endpoints {
+		e := &register.Endpoint{}
+		*e = *ep
+		eps[j] = e
+	}
+	s.Endpoints = eps
 	return s
 }
 

util/time/duration_test.go

@@ -35,11 +35,11 @@ func TestUnmarshalYAML(t *testing.T) {
 		t.Fatalf("invalid duration %v != 10000000", v.TTL)
 	}
 
-	err = yaml.Unmarshal([]byte(`{"ttl":"1d"}`), v)
+	err = yaml.Unmarshal([]byte(`{"ttl":"1y"}`), v)
 	if err != nil {
 		t.Fatal(err)
-	} else if *(v.TTL) != 86400000000000 {
+	} else if *(v.TTL) != 31622400000000000 {
-		t.Fatalf("invalid duration %v != 86400000000000", *v.TTL)
+		t.Fatalf("invalid duration %v != 31622400000000000", v.TTL)
 	}
 }
 
@@ -68,11 +68,11 @@ func TestUnmarshalJSON(t *testing.T) {
 		t.Fatalf("invalid duration %v != 10000000", v.TTL)
 	}
 
-	err = json.Unmarshal([]byte(`{"ttl":"1d"}`), v)
+	err = json.Unmarshal([]byte(`{"ttl":"1y"}`), v)
 	if err != nil {
 		t.Fatal(err)
-	} else if v.TTL != 86400000000000 {
+	} else if v.TTL != 31622400000000000 {
-		t.Fatalf("invalid duration %v != 86400000000000", v.TTL)
+		t.Fatalf("invalid duration %v != 31622400000000000", v.TTL)
 	}
 }
 
@@ -87,11 +87,11 @@ func TestParseDuration(t *testing.T) {
 	if td.String() != "340h0m0s" {
 		t.Fatalf("ParseDuration 14d != 340h0m0s : %s", td.String())
 	}
-	td, err = ParseDuration("1d")
+	td, err = ParseDuration("1y")
 	if err != nil {
 		t.Fatalf("ParseDuration error: %v", err)
 	}
-	if td.String() != "24h0m0s" {
+	if td.String() != "8784h0m0s" {
-		t.Fatalf("ParseDuration 1d != 24h0m0s : %s", td.String())
+		t.Fatalf("ParseDuration 1y != 8784h0m0s : %s", td.String())
 	}
 }