micro: rewrite options to support multiple building blocks

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

api/api.go

@@ -6,7 +6,7 @@ import (
 	"strings"
 
 	"github.com/unistack-org/micro/v3/metadata"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 	"github.com/unistack-org/micro/v3/server"
 )
 
@@ -56,7 +56,7 @@ type Service struct {
 	// The endpoint for this service
 	Endpoint *Endpoint
 	// Versions of this service
-	Services []*registry.Service
+	Services []*register.Service
 }
 
 func strip(s string) string {

api/handler/http/http.go

@@ -11,7 +11,7 @@ import (
 
 	"github.com/unistack-org/micro/v3/api"
 	"github.com/unistack-org/micro/v3/api/handler"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 )
 
 const (
@@ -70,7 +70,7 @@ func (h *httpHandler) getService(r *http.Request) (string, error) {
 	}
 
 	// get the nodes for this service
-	nodes := make([]*registry.Node, 0, len(service.Services))
+	nodes := make([]*register.Node, 0, len(service.Services))
 	for _, srv := range service.Services {
 		nodes = append(nodes, srv.Nodes...)
 	}

api/handler/http/http_test.go

@@ -12,13 +12,13 @@ import (
 	"github.com/unistack-org/micro/v3/api/resolver"
 	"github.com/unistack-org/micro/v3/api/resolver/vpath"
 	"github.com/unistack-org/micro/v3/api/router"
-	regRouter "github.com/unistack-org/micro/v3/api/router/registry"
+	regRouter "github.com/unistack-org/micro/v3/api/router/register"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
-	"github.com/unistack-org/micro/v3/registry/memory"
+	"github.com/unistack-org/micro/v3/register/memory"
 )
 
 func testHttp(t *testing.T, path, service, ns string) {
-	r := memory.NewRegistry()
+	r := memory.NewRegister()
 
 	l, err := net.Listen("tcp", "127.0.0.1:0")
 	if err != nil {
@@ -26,9 +26,9 @@ func testHttp(t *testing.T, path, service, ns string) {
 	}
 	defer l.Close()
 
-	s := &registry.Service{
+	s := &register.Service{
 		Name: service,
-		Nodes: []*registry.Node{
+		Nodes: []*register.Node{
 			{
 				Id:      service + "-1",
 				Address: l.Addr().String(),
@@ -58,7 +58,7 @@ func testHttp(t *testing.T, path, service, ns string) {
 	// initialise the handler
 	rt := regRouter.NewRouter(
 		router.WithHandler("http"),
-		router.WithRegistry(r),
+		router.WithRegister(r),
 		router.WithResolver(vpath.NewResolver(
 			resolver.WithServicePrefix(ns),
 		)),

api/handler/web/web.go

@@ -14,7 +14,7 @@ import (
 
 	"github.com/unistack-org/micro/v3/api"
 	"github.com/unistack-org/micro/v3/api/handler"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 )
 
 const (
@@ -72,7 +72,7 @@ func (wh *webHandler) getService(r *http.Request) (string, error) {
 	}
 
 	// get the nodes
-	nodes := make([]*registry.Node, 0, len(service.Services))
+	nodes := make([]*register.Node, 0, len(service.Services))
 	for _, srv := range service.Services {
 		nodes = append(nodes, srv.Nodes...)
 	}

api/resolver/options.go

@@ -3,7 +3,7 @@ package resolver
 import (
 	"context"
 
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 )
 
 // Options struct
@@ -58,7 +58,7 @@ func Domain(n string) ResolveOption {
 
 // NewResolveOptions returns new initialised resolve options
 func NewResolveOptions(opts ...ResolveOption) ResolveOptions {
-	options := ResolveOptions{Domain: registry.DefaultDomain}
+	options := ResolveOptions{Domain: register.DefaultDomain}
 	for _, o := range opts {
 		o(&options)
 	}

api/router/options.go

@@ -6,12 +6,12 @@ import (
 	"github.com/unistack-org/micro/v3/api/resolver"
 	"github.com/unistack-org/micro/v3/api/resolver/vpath"
 	"github.com/unistack-org/micro/v3/logger"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 )
 
 type Options struct {
 	Handler  string
-	Registry registry.Registry
+	Register register.Register
 	Resolver resolver.Resolver
 	Logger   logger.Logger
 	Context  context.Context
@@ -52,10 +52,10 @@ func WithHandler(h string) Option {
 	}
 }
 
-// WithRegistry sets the registry
+// WithRegister sets the register
-func WithRegistry(r registry.Registry) Option {
+func WithRegister(r register.Register) Option {
 	return func(o *Options) {
-		o.Registry = r
+		o.Register = r
 	}
 }
 

broker/broker.go

@@ -14,6 +14,7 @@ var (
 
 // Broker is an interface used for asynchronous messaging.
 type Broker interface {
+	Name() string
 	Init(...Option) error
 	Options() Options
 	Address() string

broker/noop.go

@@ -16,6 +16,10 @@ func NewBroker(opts ...Option) Broker {
 	return &noopBroker{opts: NewOptions(opts...)}
 }
 
+func (n *noopBroker) Name() string {
+	return n.opts.Name
+}
+
 // Init initialize broker
 func (n *noopBroker) Init(opts ...Option) error {
 	for _, o := range opts {

broker/options.go

@@ -7,12 +7,13 @@ import (
 	"github.com/unistack-org/micro/v3/codec"
 	"github.com/unistack-org/micro/v3/logger"
 	"github.com/unistack-org/micro/v3/meter"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 	"github.com/unistack-org/micro/v3/tracer"
 )
 
 // Options struct
 type Options struct {
+	Name string
 	// Addrs useed by broker
 	Addrs []string
 	// ErrorHandler executed when errors occur processing messages
@@ -27,8 +28,8 @@ type Options struct {
 	Tracer tracer.Tracer
 	// TLSConfig for secure communication
 	TLSConfig *tls.Config
-	// Registry used for clustering
+	// Register used for clustering
-	Registry registry.Registry
+	Register register.Register
 	// Context is used for non default options
 	Context context.Context
 }
@@ -36,7 +37,7 @@ type Options struct {
 // NewOptions create new Options
 func NewOptions(opts ...Option) Options {
 	options := Options{
-		Registry: registry.DefaultRegistry,
+		Register: register.DefaultRegister,
 		Logger:   logger.DefaultLogger,
 		Context:  context.Background(),
 		Meter:    meter.DefaultMeter,
@@ -202,10 +203,10 @@ func SubscribeGroup(name string) SubscribeOption {
 	}
 }
 
-// Registry sets registry option
+// Register sets register option
-func Registry(r registry.Registry) Option {
+func Register(r register.Register) Option {
 	return func(o *Options) {
-		o.Registry = r
+		o.Register = r
 	}
 }
 
@@ -237,6 +238,13 @@ func Meter(m meter.Meter) Option {
 	}
 }
 
+// Name sets the name
+func Name(n string) Option {
+	return func(o *Options) {
+		o.Name = n
+	}
+}
+
 // SubscribeContext set context
 func SubscribeContext(ctx context.Context) SubscribeOption {
 	return func(o *SubscribeOptions) {

client/client.go

@@ -18,6 +18,7 @@ var (
 // It supports Request/Response via Transport and Publishing via the Broker.
 // It also supports bidirectional streaming of requests.
 type Client interface {
+	Name() string
 	Init(...Option) error
 	Options() Options
 	NewMessage(topic string, msg interface{}, opts ...MessageOption) Message

client/noop.go

@@ -49,6 +49,10 @@ func NewClient(opts ...Option) Client {
 	return &noopClient{opts: NewOptions(opts...)}
 }
 
+func (n *noopClient) Name() string {
+	return n.opts.Name
+}
+
 func (n *noopRequest) Service() string {
 	return n.service
 }

client/options.go

@@ -9,7 +9,7 @@ import (
 	"github.com/unistack-org/micro/v3/logger"
 	"github.com/unistack-org/micro/v3/meter"
 	"github.com/unistack-org/micro/v3/network/transport"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 	"github.com/unistack-org/micro/v3/router"
 	"github.com/unistack-org/micro/v3/selector"
 	"github.com/unistack-org/micro/v3/selector/random"
@@ -18,6 +18,7 @@ import (
 
 // Options holds client options
 type Options struct {
+	Name string
 	// Used to select codec
 	ContentType string
 	// Proxy address to send requests via
@@ -246,11 +247,11 @@ func Transport(t transport.Transport) Option {
 	}
 }
 
-// Registry sets the routers registry
+// Register sets the routers register
-func Registry(r registry.Registry) Option {
+func Register(r register.Register) Option {
 	return func(o *Options) {
 		if o.Router != nil {
-			o.Router.Init(router.Registry(r))
+			o.Router.Init(router.Register(r))
 		}
 	}
 }
@@ -291,6 +292,13 @@ func Backoff(fn BackoffFunc) Option {
 	}
 }
 
+// Name sets the client name
+func Name(n string) Option {
+	return func(o *Options) {
+		o.Name = n
+	}
+}
+
 // Lookup sets the lookup function to use for resolving service names
 func Lookup(l LookupFunc) Option {
 	return func(o *Options) {

context.go

@@ -0,0 +1,22 @@
+package micro
+
+import "context"
+
+type serviceKey struct{}
+
+// FromContext retrieves a Service from the Context.
+func FromContext(ctx context.Context) (Service, bool) {
+	if ctx == nil {
+		return nil, false
+	}
+	s, ok := ctx.Value(serviceKey{}).(Service)
+	return s, ok
+}
+
+// NewContext returns a new Context with the Service embedded within it.
+func NewContext(ctx context.Context, s Service) context.Context {
+	if ctx == nil {
+		ctx = context.Background()
+	}
+	return context.WithValue(ctx, serviceKey{}, s)
+}

event.go

@@ -6,11 +6,22 @@ import (
 	"github.com/unistack-org/micro/v3/client"
 )
 
+// Event is used to publish messages to a topic
+type Event interface {
+	// Publish publishes a message to the event topic
+	Publish(ctx context.Context, msg interface{}, opts ...client.PublishOption) error
+}
+
 type event struct {
 	c     client.Client
 	topic string
 }
 
+// NewEvent creates a new event publisher
+func NewEvent(topic string, c client.Client) Event {
+	return &event{c, topic}
+}
+
 func (e *event) Publish(ctx context.Context, msg interface{}, opts ...client.PublishOption) error {
 	return e.c.Publish(ctx, e.c.NewMessage(e.topic, msg), opts...)
 }

events/events.go

@@ -33,7 +33,7 @@ type Store interface {
 type Event struct {
 	// ID to uniquely identify the event
 	ID string
-	// Topic of event, e.g. "registry.service.created"
+	// Topic of event, e.g. "register.service.created"
 	Topic string
 	// Timestamp of the event
 	Timestamp time.Time

function.go

@@ -1,3 +1,5 @@
+// +build ignore
+
 package micro
 
 import (
@@ -7,11 +9,28 @@ import (
 	"github.com/unistack-org/micro/v3/server"
 )
 
+// Function is a one time executing Service
+type Function interface {
+	// Inherits Service interface
+	Service
+	// Done signals to complete execution
+	Done() error
+	// Handle registers an RPC handler
+	Handle(v interface{}) error
+	// Subscribe registers a subscriber
+	Subscribe(topic string, v interface{}) error
+}
+
 type function struct {
 	cancel context.CancelFunc
 	Service
 }
 
+// NewFunction returns a new Function for a one time executing Service
+func NewFunction(opts ...Option) Function {
+	return newFunction(opts...)
+}
+
 func fnHandlerWrapper(f Function) server.HandlerWrapper {
 	return func(h server.HandlerFunc) server.HandlerFunc {
 		return func(ctx context.Context, req server.Request, rsp interface{}) error {
@@ -45,7 +64,7 @@ func newFunction(opts ...Option) Function {
 	// make context the last thing
 	fopts = append(fopts, Context(ctx))
 
-	service := newService(fopts...)
+	service := &service{opts: NewOptions(opts...)}
 
 	fn := &function{
 		cancel:  cancel,

function_test.go

@@ -7,18 +7,18 @@ import (
 	"sync"
 	"testing"
 
-	rmemory "github.com/unistack-org/micro-registry-memory"
+	rmemory "github.com/unistack-org/micro-register-memory"
 )
 
 func TestFunction(t *testing.T) {
 	var wg sync.WaitGroup
 	wg.Add(1)
 
-	r := rmemory.NewRegistry()
+	r := rmemory.NewRegister()
 
 	// create service
 	fn := NewFunction(
-		Registry(r),
+		Register(r),
 		Name("test.function"),
 		AfterStart(func() error {
 			wg.Done()

go.sum

@@ -52,6 +52,7 @@ github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
 github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/unistack-org/micro v1.18.0 h1:EbFiII0bKV0Xcua7o6J30MFmm4/g0Hv3ECOKzsUBihU=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20201221181555-eec23a3978ad h1:DN0cp81fZ3njFcrLCytUHRSUkqBjfTo4Tx9RJTWs0EY=

metadata/metadata.go

@@ -7,6 +7,11 @@ import (
 	"sort"
 )
 
+var (
+	// HeaderPrefix for all headers passed
+	HeaderPrefix = "Micro-"
+)
+
 type metadataKey struct{}
 
 // Metadata is our way of representing request headers internally.

meter/README.md

@@ -1,22 +0,0 @@
-metrics
-=======
-
-The metrics package provides a simple metrics "Reporter" interface which allows the user to submit counters, gauges and timings (along with key/value tags).
-
-Implementations
----------------
-
-* Prometheus (pull): will be first
-* Prometheus (push): certainly achievable
-* InfluxDB: could quite easily be done
-* Telegraf: almost identical to the InfluxDB implementation
-* Micro: Could we provide metrics over Micro's server interface?
-
-
-Todo
-----
-
-* Include a handler middleware which uses the Reporter interface to generate per-request level metrics
-    - Throughput
-    - Errors
-    - Duration

meter/meter.go

@@ -24,6 +24,7 @@ var (
 
 // Meter is an interface for collecting and instrumenting metrics
 type Meter interface {
+	Name() string
 	Init(...Option) error
 	Counter(string, ...Option) Counter
 	FloatCounter(string, ...Option) FloatCounter

meter/meter_test.go

@@ -35,20 +35,20 @@ func TestLabelsAppend(t *testing.T) {
 	ls.vals = []string{"noop", "http"}
 
 	var nls Labels
-	nls.keys = []string{"registry"}
+	nls.keys = []string{"register"}
 	nls.vals = []string{"gossip"}
 	ls = ls.Append(nls)
 
 	ls.Sort()
 
-	if ls.keys[0] != "registry" || ls.vals[0] != "gossip" {
+	if ls.keys[0] != "register" || ls.vals[0] != "gossip" {
 		t.Fatalf("append error: %v", ls)
 	}
 }
 
 func TestIterator(t *testing.T) {
 	var ls Labels
-	ls.keys = []string{"type", "server", "registry"}
+	ls.keys = []string{"type", "server", "register"}
 	ls.vals = []string{"noop", "http", "gossip"}
 
 	iter := ls.Iter()

meter/noop.go

@@ -16,6 +16,10 @@ func NewMeter(opts ...Option) Meter {
 	return &noopMeter{opts: NewOptions(opts...)}
 }
 
+func (r *noopMeter) Name() string {
+	return r.opts.Name
+}
+
 // Init initialize options
 func (r *noopMeter) Init(opts ...Option) error {
 	for _, o := range opts {

meter/options.go

@@ -11,6 +11,7 @@ type Option func(*Options)
 
 // Options for metrics implementations:
 type Options struct {
+	Name    string
 	Address string
 	Path    string
 	Labels  Labels

meter/wrapper/wrapper.go

@@ -0,0 +1,232 @@
+// +build ignore
+
+package wrapper
+
+import (
+	"context"
+	"fmt"
+	"time"
+
+	"github.com/unistack-org/micro/v3/client"
+	"github.com/unistack-org/micro/v3/meter"
+	"github.com/unistack-org/micro/v3/server"
+)
+
+type Options struct {
+	Meter   meter.Meter
+	Name    string
+	Version string
+	ID      string
+}
+
+type Option func(*Options)
+
+func ServiceName(name string) Option {
+	return func(o *Options) {
+		o.Name = name
+	}
+}
+
+func ServiceVersion(version string) Option {
+	return func(o *Options) {
+		o.Version = version
+	}
+}
+
+func ServiceID(id string) Option {
+	return func(o *Options) {
+		o.ID = id
+	}
+}
+
+func Meter(m meter.Meter) Option {
+	return func(o *Options) {
+		o.Meter = m
+	}
+}
+
+type wrapper struct {
+	options  Options
+	callFunc client.CallFunc
+	client.Client
+}
+
+func NewClientWrapper(opts ...Option) client.Wrapper {
+	return func(c client.Client) client.Client {
+		handler := &wrapper{
+			labels: labels,
+			Client: c,
+		}
+
+		return handler
+	}
+}
+
+func NewCallWrapper(opts ...Option) client.CallWrapper {
+	labels := getLabels(opts...)
+
+	return func(fn client.CallFunc) client.CallFunc {
+		handler := &wrapper{
+			labels:   labels,
+			callFunc: fn,
+		}
+
+		return handler.CallFunc
+	}
+}
+
+func (w *wrapper) CallFunc(ctx context.Context, addr string, req client.Request, rsp interface{}, opts client.CallOptions) error {
+	endpoint := fmt.Sprintf("%s.%s", req.Service(), req.Endpoint())
+	wlabels := append(w.labels, fmt.Sprintf(`%sendpoint="%s"`, DefaultLabelPrefix, endpoint))
+
+	timeCounterSummary := metrics.GetOrCreateSummary(getName("client_request_latency_microseconds", wlabels))
+	timeCounterHistogram := metrics.GetOrCreateSummary(getName("client_request_duration_seconds", wlabels))
+
+	ts := time.Now()
+	err := w.callFunc(ctx, addr, req, rsp, opts)
+	te := time.Since(ts)
+
+	timeCounterSummary.Update(float64(te.Seconds()))
+	timeCounterHistogram.Update(te.Seconds())
+	if err == nil {
+		metrics.GetOrCreateCounter(getName("client_request_total", append(wlabels, fmt.Sprintf(`%sstatus="success"`, DefaultLabelPrefix)))).Inc()
+	} else {
+		metrics.GetOrCreateCounter(getName("client_request_total", append(wlabels, fmt.Sprintf(`%sstatus="failure"`, DefaultLabelPrefix)))).Inc()
+	}
+
+	return err
+}
+
+func (w *wrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
+	endpoint := fmt.Sprintf("%s.%s", req.Service(), req.Endpoint())
+	wlabels := append(w.labels, fmt.Sprintf(`%sendpoint="%s"`, DefaultLabelPrefix, endpoint))
+
+	timeCounterSummary := metrics.GetOrCreateSummary(getName("client_request_latency_microseconds", wlabels))
+	timeCounterHistogram := metrics.GetOrCreateSummary(getName("client_request_duration_seconds", wlabels))
+
+	ts := time.Now()
+	err := w.Client.Call(ctx, req, rsp, opts...)
+	te := time.Since(ts)
+
+	timeCounterSummary.Update(float64(te.Seconds()))
+	timeCounterHistogram.Update(te.Seconds())
+	if err == nil {
+		metrics.GetOrCreateCounter(getName("client_request_total", append(wlabels, fmt.Sprintf(`%sstatus="success"`, DefaultLabelPrefix)))).Inc()
+	} else {
+		metrics.GetOrCreateCounter(getName("client_request_total", append(wlabels, fmt.Sprintf(`%sstatus="failure"`, DefaultLabelPrefix)))).Inc()
+	}
+
+	return err
+}
+
+func (w *wrapper) Stream(ctx context.Context, req client.Request, opts ...client.CallOption) (client.Stream, error) {
+	endpoint := fmt.Sprintf("%s.%s", req.Service(), req.Endpoint())
+	wlabels := append(w.labels, fmt.Sprintf(`%sendpoint="%s"`, DefaultLabelPrefix, endpoint))
+
+	timeCounterSummary := metrics.GetOrCreateSummary(getName("client_request_latency_microseconds", wlabels))
+	timeCounterHistogram := metrics.GetOrCreateSummary(getName("client_request_duration_seconds", wlabels))
+
+	ts := time.Now()
+	stream, err := w.Client.Stream(ctx, req, opts...)
+	te := time.Since(ts)
+
+	timeCounterSummary.Update(float64(te.Seconds()))
+	timeCounterHistogram.Update(te.Seconds())
+	if err == nil {
+		metrics.GetOrCreateCounter(getName("client_request_total", append(wlabels, fmt.Sprintf(`%sstatus="success"`, DefaultLabelPrefix)))).Inc()
+	} else {
+		metrics.GetOrCreateCounter(getName("client_request_total", append(wlabels, fmt.Sprintf(`%sstatus="failure"`, DefaultLabelPrefix)))).Inc()
+	}
+
+	return stream, err
+}
+
+func (w *wrapper) Publish(ctx context.Context, p client.Message, opts ...client.PublishOption) error {
+	endpoint := p.Topic()
+	wlabels := append(w.labels, fmt.Sprintf(`%sendpoint="%s"`, DefaultLabelPrefix, endpoint))
+
+	timeCounterSummary := metrics.GetOrCreateSummary(getName("publish_message_latency_microseconds", wlabels))
+	timeCounterHistogram := metrics.GetOrCreateSummary(getName("publish_message_duration_seconds", wlabels))
+
+	ts := time.Now()
+	err := w.Client.Publish(ctx, p, opts...)
+	te := time.Since(ts)
+
+	timeCounterSummary.Update(float64(te.Seconds()))
+	timeCounterHistogram.Update(te.Seconds())
+	if err == nil {
+		metrics.GetOrCreateCounter(getName("publish_message_total", append(wlabels, fmt.Sprintf(`%sstatus="success"`, DefaultLabelPrefix)))).Inc()
+	} else {
+		metrics.GetOrCreateCounter(getName("publish_message_total", append(wlabels, fmt.Sprintf(`%sstatus="failure"`, DefaultLabelPrefix)))).Inc()
+	}
+
+	return err
+}
+
+func NewHandlerWrapper(opts ...Option) server.HandlerWrapper {
+	labels := getLabels(opts...)
+
+	handler := &wrapper{
+		labels: labels,
+	}
+
+	return handler.HandlerFunc
+}
+
+func (w *wrapper) HandlerFunc(fn server.HandlerFunc) server.HandlerFunc {
+	return func(ctx context.Context, req server.Request, rsp interface{}) error {
+		endpoint := req.Endpoint()
+		wlabels := append(w.labels, fmt.Sprintf(`%sendpoint="%s"`, DefaultLabelPrefix, endpoint))
+
+		timeCounterSummary := metrics.GetOrCreateSummary(getName("server_request_latency_microseconds", wlabels))
+		timeCounterHistogram := metrics.GetOrCreateSummary(getName("server_request_duration_seconds", wlabels))
+
+		ts := time.Now()
+		err := fn(ctx, req, rsp)
+		te := time.Since(ts)
+
+		timeCounterSummary.Update(float64(te.Seconds()))
+		timeCounterHistogram.Update(te.Seconds())
+		if err == nil {
+			metrics.GetOrCreateCounter(getName("server_request_total", append(wlabels, fmt.Sprintf(`%sstatus="success"`, DefaultLabelPrefix)))).Inc()
+		} else {
+			metrics.GetOrCreateCounter(getName("server_request_total", append(wlabels, fmt.Sprintf(`%sstatus="failure"`, DefaultLabelPrefix)))).Inc()
+		}
+
+		return err
+	}
+}
+
+func NewSubscriberWrapper(opts ...Option) server.SubscriberWrapper {
+	labels := getLabels(opts...)
+
+	handler := &wrapper{
+		labels: labels,
+	}
+
+	return handler.SubscriberFunc
+}
+
+func (w *wrapper) SubscriberFunc(fn server.SubscriberFunc) server.SubscriberFunc {
+	return func(ctx context.Context, msg server.Message) error {
+		endpoint := msg.Topic()
+		wlabels := append(w.labels, fmt.Sprintf(`%sendpoint="%s"`, DefaultLabelPrefix, endpoint))
+
+		timeCounterSummary := metrics.GetOrCreateSummary(getName("subscribe_message_latency_microseconds", wlabels))
+		timeCounterHistogram := metrics.GetOrCreateSummary(getName("subscribe_message_duration_seconds", wlabels))
+
+		ts := time.Now()
+		err := fn(ctx, msg)
+		te := time.Since(ts)
+
+		timeCounterSummary.Update(float64(te.Seconds()))
+		timeCounterHistogram.Update(te.Seconds())
+		if err == nil {
+			metrics.GetOrCreateCounter(getName("subscribe_message_total", append(wlabels, fmt.Sprintf(`%sstatus="success"`, DefaultLabelPrefix)))).Inc()
+		} else {
+			metrics.GetOrCreateCounter(getName("subscribe_message_total", append(wlabels, fmt.Sprintf(`%sstatus="failure"`, DefaultLabelPrefix)))).Inc()
+		}
+
+		return err
+	}
+}

micro.go

@@ -1,119 +0,0 @@
-// Package micro is a pluggable framework for microservices
-package micro
-
-import (
-	"context"
-
-	"github.com/unistack-org/micro/v3/broker"
-	"github.com/unistack-org/micro/v3/client"
-	"github.com/unistack-org/micro/v3/server"
-)
-
-type serviceKey struct{}
-
-// Service is an interface that wraps the lower level libraries
-// within micro. Its a convenience method for building
-// and initialising services.
-type Service interface {
-	// The service name
-	Name() string
-	// Init initialises options
-	Init(...Option) error
-	// Options returns the current options
-	Options() Options
-	// Client is used to call services
-	Client() client.Client
-	// Server is for handling requests and events
-	Server() server.Server
-	// Broker is for broker usage
-	Broker() broker.Broker
-	// Run the service
-	Run() error
-	// The service implementation
-	String() string
-}
-
-// Function is a one time executing Service
-type Function interface {
-	// Inherits Service interface
-	Service
-	// Done signals to complete execution
-	Done() error
-	// Handle registers an RPC handler
-	Handle(v interface{}) error
-	// Subscribe registers a subscriber
-	Subscribe(topic string, v interface{}) error
-}
-
-/*
-// Type Event is a future type for acting on asynchronous events
-type Event interface {
-	// Publish publishes a message to the event topic
-	Publish(ctx context.Context, msg interface{}, opts ...client.PublishOption) error
-	// Subscribe to the event
-	Subscribe(ctx context.Context, v in
-}
-
-// Resource is a future type for defining dependencies
-type Resource interface {
-	// Name of the resource
-	Name() string
-	// Type of resource
-	Type() string
-	// Method of creation
-	Create() error
-}
-*/
-
-// Event is used to publish messages to a topic
-type Event interface {
-	// Publish publishes a message to the event topic
-	Publish(ctx context.Context, msg interface{}, opts ...client.PublishOption) error
-}
-
-var (
-	// HeaderPrefix for all headers passed
-	HeaderPrefix = "Micro-"
-)
-
-// NewService creates and returns a new Service based on the packages within.
-func NewService(opts ...Option) Service {
-	return newService(opts...)
-}
-
-// FromContext retrieves a Service from the Context.
-func FromContext(ctx context.Context) (Service, bool) {
-	if ctx == nil {
-		return nil, false
-	}
-	s, ok := ctx.Value(serviceKey{}).(Service)
-	return s, ok
-}
-
-// NewContext returns a new Context with the Service embedded within it.
-func NewContext(ctx context.Context, s Service) context.Context {
-	if ctx == nil {
-		ctx = context.Background()
-	}
-	return context.WithValue(ctx, serviceKey{}, s)
-}
-
-// NewFunction returns a new Function for a one time executing Service
-func NewFunction(opts ...Option) Function {
-	return newFunction(opts...)
-}
-
-// NewEvent creates a new event publisher
-func NewEvent(topic string, c client.Client) Event {
-	return &event{c, topic}
-}
-
-// RegisterHandler is syntactic sugar for registering a handler
-func RegisterHandler(s server.Server, h interface{}, opts ...server.HandlerOption) error {
-	return s.Handle(s.NewHandler(h, opts...))
-}
-
-// RegisterSubscriber is syntactic sugar for registering a subscriber
-func RegisterSubscriber(topic string, s server.Server, h interface{}, opts ...server.SubscriberOption) error {
-	return s.Subscribe(s.NewSubscriber(topic, h, opts...))
-}

network/tunnel/broker/broker.go

@@ -41,6 +41,10 @@ func (t *tunBroker) Init(opts ...broker.Option) error {
 	return nil
 }
 
+func (t *tunBroker) Name() string {
+	return t.opts.Name
+}
+
 func (t *tunBroker) Options() broker.Options {
 	return t.opts
 }

options.go

@@ -2,40 +2,44 @@ package micro
 
 import (
 	"context"
+	"fmt"
 	"time"
 
 	"github.com/unistack-org/micro/v3/auth"
 	"github.com/unistack-org/micro/v3/broker"
 	"github.com/unistack-org/micro/v3/client"
 	"github.com/unistack-org/micro/v3/config"
-	"github.com/unistack-org/micro/v3/debug/profile"
 	"github.com/unistack-org/micro/v3/logger"
 	"github.com/unistack-org/micro/v3/metadata"
 	"github.com/unistack-org/micro/v3/meter"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 	"github.com/unistack-org/micro/v3/router"
-	"github.com/unistack-org/micro/v3/runtime"
-	"github.com/unistack-org/micro/v3/selector"
 	"github.com/unistack-org/micro/v3/server"
 	"github.com/unistack-org/micro/v3/store"
 	"github.com/unistack-org/micro/v3/tracer"
+	//	"github.com/unistack-org/micro/v3/debug/profile"
+	//	"github.com/unistack-org/micro/v3/runtime"
 )
 
 // Options for micro service
 type Options struct {
-	Auth     auth.Auth
+	Name     string
-	Broker   broker.Broker
+	Version  string
-	Logger   logger.Logger
+	Metadata metadata.Metadata
-	Meter    meter.Meter
+
-	Configs  []config.Config
+	Auths     []auth.Auth
-	Client   client.Client
+	Brokers   []broker.Broker
-	Server   server.Server
+	Loggers   []logger.Logger
-	Store    store.Store
+	Meters    []meter.Meter
-	Registry registry.Registry
+	Configs   []config.Config
-	Tracer   tracer.Tracer
+	Clients   []client.Client
-	Router   router.Router
+	Servers   []server.Server
-	Runtime  runtime.Runtime
+	Stores    []store.Store
-	Profile  profile.Profile
+	Registers []register.Register
+	Tracers   []tracer.Tracer
+	Routers   []router.Router
+	//	Runtime  runtime.Runtime
+	//	Profile  profile.Profile
 
 	// Before and After funcs
 	BeforeStart []func(context.Context) error
@@ -51,18 +55,18 @@ type Options struct {
 // NewOptions returns new Options filled with defaults and overrided by provided opts
 func NewOptions(opts ...Option) Options {
 	options := Options{
-		Context:  context.Background(),
+		Context:   context.Background(),
-		Server:   server.DefaultServer,
+		Servers:   []server.Server{server.DefaultServer},
-		Client:   client.DefaultClient,
+		Clients:   []client.Client{client.DefaultClient},
-		Broker:   broker.DefaultBroker,
+		Brokers:   []broker.Broker{broker.DefaultBroker},
-		Registry: registry.DefaultRegistry,
+		Registers: []register.Register{register.DefaultRegister},
-		Router:   router.DefaultRouter,
+		Routers:   []router.Router{router.DefaultRouter},
-		Auth:     auth.DefaultAuth,
+		Auths:     []auth.Auth{auth.DefaultAuth},
-		Logger:   logger.DefaultLogger,
+		Loggers:   []logger.Logger{logger.DefaultLogger},
-		Tracer:   tracer.DefaultTracer,
+		Tracers:   []tracer.Tracer{tracer.DefaultTracer},
-		Meter:    meter.DefaultMeter,
+		Meters:    []meter.Meter{meter.DefaultMeter},
-		Configs:  []config.Config{config.DefaultConfig},
+		Configs:   []config.Config{config.DefaultConfig},
-		Store:    store.DefaultStore,
+		Stores:    []store.Store{store.DefaultStore},
 		//Runtime   runtime.Runtime
 		//Profile   profile.Profile
 	}
@@ -75,274 +79,559 @@ func NewOptions(opts ...Option) Options {
 }
 
 // Option func
-type Option func(*Options)
+type Option func(*Options) error
 
-// Broker to be used for service
+// Broker to be used for client and server
-func Broker(b broker.Broker) Option {
+func Broker(b broker.Broker, opts ...BrokerOption) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
-		o.Broker = b
+		var err error
-		if o.Client != nil {
+		bopts := brokerOptions{}
-			// Update Client and Server
+		for _, opt := range opts {
-			o.Client.Init(client.Broker(b))
+			opt(&bopts)
 		}
-		if o.Server != nil {
+		all := false
-			o.Server.Init(server.Broker(b))
+		if len(opts) == 0 {
+			all = true
 		}
+		for _, srv := range o.Servers {
+			for _, os := range bopts.servers {
+				if srv.Name() == os || all {
+					if err = srv.Init(server.Broker(b)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		for _, cli := range o.Clients {
+			for _, oc := range bopts.clients {
+				if cli.Name() == oc || all {
+					if err = cli.Init(client.Broker(b)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		return nil
 	}
 }
 
-// Client to be used for service
+type brokerOptions struct {
-func Client(c client.Client) Option {
+	servers []string
-	return func(o *Options) {
+	clients []string
-		o.Client = c
+}
+
+type BrokerOption func(*brokerOptions)
+
+func BrokerClient(n string) BrokerOption {
+	return func(o *brokerOptions) {
+		o.clients = append(o.clients, n)
+	}
+}
+
+func BrokerServer(n string) BrokerOption {
+	return func(o *brokerOptions) {
+		o.servers = append(o.servers, n)
+	}
+}
+
+// Clients to be used for service
+func Clients(c ...client.Client) Option {
+	return func(o *Options) error {
+		o.Clients = c
+		return nil
 	}
 }
 
 // Context specifies a context for the service.
 // Can be used to signal shutdown of the service and for extra option values.
 func Context(ctx context.Context) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
+		// TODO: Pass context to underline stuff ?
 		o.Context = ctx
+		return nil
 	}
 }
 
+/*
 // Profile to be used for debug profile
 func Profile(p profile.Profile) Option {
 	return func(o *Options) {
 		o.Profile = p
 	}
 }
+*/
 
-// Server to be used for service
+// Servers to be used for service
-func Server(s server.Server) Option {
+func Servers(s ...server.Server) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
-		o.Server = s
+		o.Servers = s
+		return nil
 	}
 }
 
-// Store sets the store to use
+// Stores sets the store to use
-func Store(s store.Store) Option {
+func Stores(s ...store.Store) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
-		o.Store = s
+		o.Stores = s
+		return nil
 	}
 }
 
 // Logger set the logger to use
-func Logger(l logger.Logger) Option {
+func Logger(l logger.Logger, opts ...LoggerOption) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
-		o.Logger = l
+		var err error
+		lopts := loggerOptions{}
+		for _, opt := range opts {
+			opt(&lopts)
+		}
+		all := false
+		if len(opts) == 0 {
+			all = true
+		}
+		for _, srv := range o.Servers {
+			for _, os := range lopts.servers {
+				if srv.Name() == os || all {
+					if err = srv.Init(server.Logger(l)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		for _, cli := range o.Clients {
+			for _, oc := range lopts.clients {
+				if cli.Name() == oc || all {
+					if err = cli.Init(client.Logger(l)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		for _, brk := range o.Brokers {
+			for _, ob := range lopts.brokers {
+				if brk.Name() == ob || all {
+					if err = brk.Init(broker.Logger(l)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		for _, reg := range o.Registers {
+			for _, or := range lopts.registers {
+				if reg.Name() == or || all {
+					if err = reg.Init(register.Logger(l)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		for _, str := range o.Stores {
+			for _, or := range lopts.stores {
+				if str.Name() == or || all {
+					if err = str.Init(store.Logger(l)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		for _, mtr := range o.Meters {
+			for _, or := range lopts.meters {
+				if mtr.Name() == or || all {
+					if err = mtr.Init(meter.Logger(l)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		for _, trc := range o.Tracers {
+			for _, ot := range lopts.tracers {
+				if trc.Name() == ot || all {
+					if err = trc.Init(tracer.Logger(l)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+
+		return nil
 	}
 }
 
-// Meter set the meter to use
+type LoggerOption func(*loggerOptions)
-func Meter(m meter.Meter) Option {
+
-	return func(o *Options) {
+type loggerOptions struct {
-		o.Meter = m
+	servers   []string
+	clients   []string
+	brokers   []string
+	registers []string
+	stores    []string
+	meters    []string
+	tracers   []string
+}
+
+/*
+func LoggerServer(n string) LoggerOption {
+
+}
+*/
+
+// Meters set the meter to use
+func Meters(m ...meter.Meter) Option {
+	return func(o *Options) error {
+		o.Meters = m
+		return nil
 	}
 }
 
-// Registry sets the registry for the service
+// Register sets the register for the service
 // and the underlying components
-func Registry(r registry.Registry) Option {
+func Register(r register.Register, opts ...RegisterOption) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
-		o.Registry = r
+		var err error
-		if o.Router != nil {
+		ropts := registerOptions{}
-			// Update router
+		for _, opt := range opts {
-			o.Router.Init(router.Registry(r))
+			opt(&ropts)
 		}
-		if o.Server != nil {
+		all := false
-			// Update server
+		if len(opts) == 0 {
-			o.Server.Init(server.Registry(r))
+			all = true
 		}
-		if o.Broker != nil {
+		for _, rtr := range o.Routers {
-			// Update Broker
+			for _, os := range ropts.routers {
-			o.Broker.Init(broker.Registry(r))
+				if rtr.Name() == os || all {
+					if err = rtr.Init(router.Register(r)); err != nil {
+						return err
+					}
+				}
+			}
 		}
+		for _, srv := range o.Servers {
+			for _, os := range ropts.servers {
+				if srv.Name() == os || all {
+					if err = srv.Init(server.Register(r)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		for _, brk := range o.Brokers {
+			for _, os := range ropts.brokers {
+				if brk.Name() == os || all {
+					if err = brk.Init(broker.Register(r)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		return nil
 	}
 }
 
-// Tracer sets the tracer for the service
+type registerOptions struct {
-func Tracer(t tracer.Tracer) Option {
+	routers []string
-	return func(o *Options) {
+	servers []string
-		o.Tracer = t
+	brokers []string
-		if o.Server != nil {
+}
-			o.Server.Init(server.Tracer(t))
+
-		}
+type RegisterOption func(*registerOptions)
-		if o.Client != nil {
+
-			o.Client.Init(client.Tracer(t))
+func RegisterRouter(n string) RegisterOption {
-		}
+	return func(o *registerOptions) {
+		o.routers = append(o.routers, n)
 	}
 }
 
+func RegisterServer(n string) RegisterOption {
+	return func(o *registerOptions) {
+		o.servers = append(o.servers, n)
+	}
+}
+
+func RegisterBroker(n string) RegisterOption {
+	return func(o *registerOptions) {
+		o.brokers = append(o.brokers, n)
+	}
+}
+
+func Tracer(t tracer.Tracer, opts ...TracerOption) Option {
+	return func(o *Options) error {
+		var err error
+		topts := tracerOptions{}
+		for _, opt := range opts {
+			opt(&topts)
+		}
+		all := false
+		if len(opts) == 0 {
+			all = true
+		}
+		for _, srv := range o.Servers {
+			for _, os := range topts.servers {
+				if srv.Name() == os || all {
+					if err = srv.Init(server.Tracer(t)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		for _, cli := range o.Clients {
+			for _, os := range topts.clients {
+				if cli.Name() == os || all {
+					if err = cli.Init(client.Tracer(t)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		for _, str := range o.Stores {
+			for _, os := range topts.stores {
+				if str.Name() == os || all {
+					if err = str.Init(store.Tracer(t)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		for _, brk := range o.Brokers {
+			for _, os := range topts.brokers {
+				if brk.Name() == os || all {
+					if err = brk.Init(broker.Tracer(t)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		return nil
+	}
+}
+
+type tracerOptions struct {
+	clients []string
+	servers []string
+	brokers []string
+	stores  []string
+}
+
+type TracerOption func(*tracerOptions)
+
+func TracerClient(n string) TracerOption {
+	return func(o *tracerOptions) {
+		o.clients = append(o.clients, n)
+	}
+}
+
+func TracerServer(n string) TracerOption {
+	return func(o *tracerOptions) {
+		o.servers = append(o.servers, n)
+	}
+}
+
+func TracerBroker(n string) TracerOption {
+	return func(o *tracerOptions) {
+		o.brokers = append(o.brokers, n)
+	}
+}
+
+func TracerStore(n string) TracerOption {
+	return func(o *tracerOptions) {
+		o.stores = append(o.stores, n)
+	}
+}
+
+/*
 // Auth sets the auth for the service
 func Auth(a auth.Auth) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
 		o.Auth = a
 		if o.Server != nil {
 			o.Server.Init(server.Auth(a))
 		}
+		return nil
 	}
 }
+*/
 
 // Configs sets the configs for the service
 func Configs(c ...config.Config) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
 		o.Configs = c
+		return nil
 	}
 }
 
+/*
 // Selector sets the selector for the service client
 func Selector(s selector.Selector) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
 		if o.Client != nil {
 			o.Client.Init(client.Selector(s))
 		}
+		return nil
 	}
 }
-
+*/
+/*
 // Runtime sets the runtime
 func Runtime(r runtime.Runtime) Option {
 	return func(o *Options) {
 		o.Runtime = r
 	}
 }
+*/
 
 // Router sets the router
-func Router(r router.Router) Option {
+func Router(r router.Router, opts ...RouterOption) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
-		o.Router = r
+		var err error
-		// Update client
+		ropts := routerOptions{}
-		if o.Client != nil {
+		for _, opt := range opts {
-			o.Client.Init(client.Router(r))
+			opt(&ropts)
 		}
+		all := false
+		if len(opts) == 0 {
+			all = true
+		}
+		for _, cli := range o.Clients {
+			for _, os := range ropts.clients {
+				if cli.Name() == os || all {
+					if err = cli.Init(client.Router(r)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		return nil
+	}
+}
+
+type routerOptions struct {
+	clients []string
+}
+
+type RouterOption func(*routerOptions)
+
+func RouterClient(n string) RouterOption {
+	return func(o *routerOptions) {
+		o.clients = append(o.clients, n)
 	}
 }
 
 // Address sets the address of the server
 func Address(addr string) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
-		if o.Server != nil {
+		switch len(o.Servers) {
-			o.Server.Init(server.Address(addr))
+		case 0:
+			return fmt.Errorf("cant set address on nil server")
+		case 1:
+			break
+		default:
+			return fmt.Errorf("cant set same address for multiple servers")
 		}
+		return o.Servers[0].Init(server.Address(addr))
 	}
 }
 
 // Name of the service
 func Name(n string) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
-		if o.Server != nil {
+		o.Name = n
-			o.Server.Init(server.Name(n))
+		return nil
-		}
 	}
 }
 
 // Version of the service
 func Version(v string) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
-		if o.Server != nil {
+		o.Version = v
-			o.Server.Init(server.Version(v))
+		return nil
-		}
 	}
 }
 
 // Metadata associated with the service
 func Metadata(md metadata.Metadata) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
-		if o.Server != nil {
+		o.Metadata = metadata.Copy(md)
-			o.Server.Init(server.Metadata(md))
+		return nil
-		}
 	}
 }
 
 // RegisterTTL specifies the TTL to use when registering the service
-func RegisterTTL(t time.Duration) Option {
+func RegisterTTL(td time.Duration, opts ...RegisterOption) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
-		if o.Server != nil {
+		var err error
-			o.Server.Init(server.RegisterTTL(t))
+		ropts := registerOptions{}
+		for _, opt := range opts {
+			opt(&ropts)
 		}
+		all := false
+		if len(opts) == 0 {
+			all = true
+		}
+		for _, srv := range o.Servers {
+			for _, os := range ropts.servers {
+				if srv.Name() == os || all {
+					if err = srv.Init(server.RegisterTTL(td)); err != nil {
+						return err
+					}
+				}
+			}
+		}
+		return nil
 	}
 }
 
 // RegisterInterval specifies the interval on which to re-register
-func RegisterInterval(t time.Duration) Option {
+func RegisterInterval(td time.Duration, opts ...RegisterOption) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
-		if o.Server != nil {
+		var err error
-			o.Server.Init(server.RegisterInterval(t))
+		ropts := registerOptions{}
+		for _, opt := range opts {
+			opt(&ropts)
 		}
-	}
+		all := false
-}
+		if len(opts) == 0 {
-
+			all = true
-// WrapClient is a convenience method for wrapping a Client with
-// some middleware component. A list of wrappers can be provided.
-// Wrappers are applied in reverse order so the last is executed first.
-func WrapClient(w ...client.Wrapper) Option {
-	return func(o *Options) {
-		// apply in reverse
-		for i := len(w); i > 0; i-- {
-			o.Client = w[i-1](o.Client)
 		}
-	}
+		for _, srv := range o.Servers {
-}
+			for _, os := range ropts.servers {
-
+				if srv.Name() == os || all {
-// WrapCall is a convenience method for wrapping a Client CallFunc
+					if err = srv.Init(server.RegisterInterval(td)); err != nil {
-func WrapCall(w ...client.CallWrapper) Option {
+						return err
-	return func(o *Options) {
+					}
-		o.Client.Init(client.WrapCall(w...))
+				}
-	}
+			}
-}
-
-// WrapHandler adds a handler Wrapper to a list of options passed into the server
-func WrapHandler(w ...server.HandlerWrapper) Option {
-	return func(o *Options) {
-		var wrappers []server.Option
-
-		for _, wrap := range w {
-			wrappers = append(wrappers, server.WrapHandler(wrap))
 		}
-
+		return nil
-		// Init once
-		o.Server.Init(wrappers...)
-	}
-}
-
-// WrapSubscriber adds a subscriber Wrapper to a list of options passed into the server
-func WrapSubscriber(w ...server.SubscriberWrapper) Option {
-	return func(o *Options) {
-		var wrappers []server.Option
-
-		for _, wrap := range w {
-			wrappers = append(wrappers, server.WrapSubscriber(wrap))
-		}
-
-		// Init once
-		o.Server.Init(wrappers...)
 	}
 }
 
 // BeforeStart run funcs before service starts
 func BeforeStart(fn func(context.Context) error) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
 		o.BeforeStart = append(o.BeforeStart, fn)
+		return nil
 	}
 }
 
 // BeforeStop run funcs before service stops
 func BeforeStop(fn func(context.Context) error) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
 		o.BeforeStop = append(o.BeforeStop, fn)
+		return nil
 	}
 }
 
 // AfterStart run funcs after service starts
 func AfterStart(fn func(context.Context) error) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
 		o.AfterStart = append(o.AfterStart, fn)
+		return nil
 	}
 }
 
 // AfterStop run funcs after service stops
 func AfterStop(fn func(context.Context) error) Option {
-	return func(o *Options) {
+	return func(o *Options) error {
 		o.AfterStop = append(o.AfterStop, fn)
+		return nil
 	}
 }

register/context.go

@@ -1,26 +1,26 @@
-package registry
+package register
 
 import (
 	"context"
 )
 
-type registryKey struct{}
+type registerKey struct{}
 
-// FromContext get registry from context
+// FromContext get register from context
-func FromContext(ctx context.Context) (Registry, bool) {
+func FromContext(ctx context.Context) (Register, bool) {
 	if ctx == nil {
 		return nil, false
 	}
-	c, ok := ctx.Value(registryKey{}).(Registry)
+	c, ok := ctx.Value(registerKey{}).(Register)
 	return c, ok
 }
 
-// NewContext put registry in context
+// NewContext put register in context
-func NewContext(ctx context.Context, c Registry) context.Context {
+func NewContext(ctx context.Context, c Register) context.Context {
 	if ctx == nil {
 		ctx = context.Background()
 	}
-	return context.WithValue(ctx, registryKey{}, c)
+	return context.WithValue(ctx, registerKey{}, c)
 }
 
 // SetOption returns a function to setup a context with given value

register/extractor.go

@@ -1,4 +1,4 @@
-package registry
+package register
 
 import (
 	"fmt"

register/extractor_test.go

@@ -1,4 +1,4 @@
-package registry
+package register
 
 import (
 	"context"

register/noop.go

@@ -0,0 +1,85 @@
+package register
+
+import (
+	"context"
+)
+
+type noopRegister struct {
+	opts Options
+}
+
+func (n *noopRegister) Name() string {
+	return n.opts.Name
+}
+
+// Init initialize register
+func (n *noopRegister) Init(opts ...Option) error {
+	for _, o := range opts {
+		o(&n.opts)
+	}
+	return nil
+}
+
+// Options returns options struct
+func (n *noopRegister) Options() Options {
+	return n.opts
+}
+
+// Connect opens connection to register
+func (n *noopRegister) Connect(ctx context.Context) error {
+	return nil
+}
+
+// Disconnect close connection to register
+func (n *noopRegister) Disconnect(ctx context.Context) error {
+	return nil
+}
+
+// Register registers service
+func (n *noopRegister) Register(ctx context.Context, svc *Service, opts ...RegisterOption) error {
+	return nil
+}
+
+// Deregister deregisters service
+func (n *noopRegister) Deregister(ctx context.Context, svc *Service, opts ...DeregisterOption) error {
+	return nil
+}
+
+// LookupService returns servive info
+func (n *noopRegister) LookupService(ctx context.Context, name string, opts ...LookupOption) ([]*Service, error) {
+	return []*Service{}, nil
+}
+
+// ListServices listing services
+func (n *noopRegister) ListServices(ctx context.Context, opts ...ListOption) ([]*Service, error) {
+	return []*Service{}, nil
+}
+
+// Watch is used to watch for service changes
+func (n *noopRegister) Watch(ctx context.Context, opts ...WatchOption) (Watcher, error) {
+	return &noopWatcher{done: make(chan struct{}), opts: NewWatchOptions(opts...)}, nil
+}
+
+// String returns register string representation
+func (n *noopRegister) String() string {
+	return "noop"
+}
+
+type noopWatcher struct {
+	opts WatchOptions
+	done chan struct{}
+}
+
+func (n *noopWatcher) Next() (*Result, error) {
+	<-n.done
+	return nil, ErrWatcherStopped
+}
+
+func (n *noopWatcher) Stop() {
+	close(n.done)
+}
+
+// NewRegister returns a new noop register
+func NewRegister(opts ...Option) Register {
+	return &noopRegister{opts: NewOptions(opts...)}
+}

register/options.go

@@ -1,4 +1,4 @@
-package registry
+package register
 
 import (
 	"context"
@@ -11,6 +11,7 @@ import (
 )
 
 type Options struct {
+	Name      string
 	Addrs     []string
 	Timeout   time.Duration
 	TLSConfig *tls.Config
@@ -102,14 +103,14 @@ func NewDeregisterOptions(opts ...DeregisterOption) DeregisterOptions {
 	return options
 }
 
-type GetOptions struct {
+type LookupOptions struct {
 	Context context.Context
 	// Domain to scope the request to
 	Domain string
 }
 
-func NewGetOptions(opts ...GetOption) GetOptions {
+func NewLookupOptions(opts ...LookupOption) LookupOptions {
-	options := GetOptions{
+	options := LookupOptions{
 		Domain:  DefaultDomain,
 		Context: context.Background(),
 	}
@@ -136,7 +137,7 @@ func NewListOptions(opts ...ListOption) ListOptions {
 	return options
 }
 
-// Addrs is the registry addresses to use
+// Addrs is the register addresses to use
 func Addrs(addrs ...string) Option {
 	return func(o *Options) {
 		o.Addrs = addrs
@@ -245,14 +246,14 @@ func DeregisterDomain(d string) DeregisterOption {
 	}
 }
 
-func GetContext(ctx context.Context) GetOption {
+func GetContext(ctx context.Context) LookupOption {
-	return func(o *GetOptions) {
+	return func(o *LookupOptions) {
 		o.Context = ctx
 	}
 }
 
-func GetDomain(d string) GetOption {
+func GetDomain(d string) LookupOption {
-	return func(o *GetOptions) {
+	return func(o *LookupOptions) {
 		o.Domain = d
 	}
 }

register/register.go

@@ -1,5 +1,5 @@
-// Package registry is an interface for service discovery
+// Package register is an interface for service discovery
-package registry
+package register
 
 import (
 	"context"
@@ -16,31 +16,32 @@ const (
 )
 
 var (
-	// DefaultRegistry is the global default registry
+	// DefaultRegister is the global default register
-	DefaultRegistry Registry = NewRegistry()
+	DefaultRegister Register = NewRegister()
-	// ErrNotFound returned when GetService is called and no services found
+	// ErrNotFound returned when LookupService is called and no services found
 	ErrNotFound = errors.New("service not found")
 	// ErrWatcherStopped returned when when watcher is stopped
 	ErrWatcherStopped = errors.New("watcher stopped")
 )
 
-// Registry provides an interface for service discovery
+// Register provides an interface for service discovery
 // and an abstraction over varying implementations
 // {consul, etcd, zookeeper, ...}
-type Registry interface {
+type Register interface {
+	Name() string
 	Init(...Option) error
 	Options() Options
 	Connect(context.Context) error
 	Disconnect(context.Context) error
 	Register(context.Context, *Service, ...RegisterOption) error
 	Deregister(context.Context, *Service, ...DeregisterOption) error
-	GetService(context.Context, string, ...GetOption) ([]*Service, error)
+	LookupService(context.Context, string, ...LookupOption) ([]*Service, error)
 	ListServices(context.Context, ...ListOption) ([]*Service, error)
 	Watch(context.Context, ...WatchOption) (Watcher, error)
 	String() string
 }
 
-// Service holds service registry info
+// Service holds service register info
 type Service struct {
 	Name      string            `json:"name"`
 	Version   string            `json:"version"`
@@ -49,14 +50,14 @@ type Service struct {
 	Nodes     []*Node           `json:"nodes"`
 }
 
-// Node holds node registry info
+// Node holds node register info
 type Node struct {
 	Id       string            `json:"id"`
 	Address  string            `json:"address"`
 	Metadata metadata.Metadata `json:"metadata"`
 }
 
-// Endpoint holds endpoint registry info
+// Endpoint holds endpoint register info
 type Endpoint struct {
 	Name     string            `json:"name"`
 	Request  *Value            `json:"request"`
@@ -83,8 +84,8 @@ type WatchOption func(*WatchOptions)
 // DeregisterOption option is used to deregister service
 type DeregisterOption func(*DeregisterOptions)
 
-// GetOption option is used to get service
+// LookupOption option is used to get service
-type GetOption func(*GetOptions)
+type LookupOption func(*LookupOptions)
 
 // ListOption option is used to list services
 type ListOption func(*ListOptions)

register/watcher.go

@@ -1,9 +1,9 @@
-package registry
+package register
 
 import "time"
 
 // Watcher is an interface that returns updates
-// about services within the registry.
+// about services within the register.
 type Watcher interface {
 	// Next is a blocking call
 	Next() (*Result, error)
@@ -17,7 +17,7 @@ type Result struct {
 	Service *Service
 }
 
-// EventType defines registry event type
+// EventType defines register event type
 type EventType int
 
 const (
@@ -43,14 +43,14 @@ func (t EventType) String() string {
 	}
 }
 
-// Event is registry event
+// Event is register event
 type Event struct {
-	// Id is registry id
+	// Id is register id
 	Id string
 	// Type defines type of event
 	Type EventType
 	// Timestamp is event timestamp
 	Timestamp time.Time
-	// Service is registry service
+	// Service is register service
 	Service *Service
 }

registry/noop.go

@@ -1,81 +0,0 @@
-package registry
-
-import (
-	"context"
-)
-
-type noopRegistry struct {
-	opts Options
-}
-
-// Init initialize registry
-func (n *noopRegistry) Init(opts ...Option) error {
-	for _, o := range opts {
-		o(&n.opts)
-	}
-	return nil
-}
-
-// Options returns options struct
-func (n *noopRegistry) Options() Options {
-	return n.opts
-}
-
-// Connect opens connection to registry
-func (n *noopRegistry) Connect(ctx context.Context) error {
-	return nil
-}
-
-// Disconnect close connection to registry
-func (n *noopRegistry) Disconnect(ctx context.Context) error {
-	return nil
-}
-
-// Register registers service
-func (n *noopRegistry) Register(ctx context.Context, svc *Service, opts ...RegisterOption) error {
-	return nil
-}
-
-// Deregister deregisters service
-func (n *noopRegistry) Deregister(ctx context.Context, svc *Service, opts ...DeregisterOption) error {
-	return nil
-}
-
-// GetService returns servive info
-func (n *noopRegistry) GetService(ctx context.Context, name string, opts ...GetOption) ([]*Service, error) {
-	return []*Service{}, nil
-}
-
-// ListServices listing services
-func (n *noopRegistry) ListServices(ctx context.Context, opts ...ListOption) ([]*Service, error) {
-	return []*Service{}, nil
-}
-
-// Watch is used to watch for service changes
-func (n *noopRegistry) Watch(ctx context.Context, opts ...WatchOption) (Watcher, error) {
-	return &noopWatcher{done: make(chan struct{}), opts: NewWatchOptions(opts...)}, nil
-}
-
-// String returns registry string representation
-func (n *noopRegistry) String() string {
-	return "noop"
-}
-
-type noopWatcher struct {
-	opts WatchOptions
-	done chan struct{}
-}
-
-func (n *noopWatcher) Next() (*Result, error) {
-	<-n.done
-	return nil, ErrWatcherStopped
-}
-
-func (n *noopWatcher) Stop() {
-	close(n.done)
-}
-
-// NewRegistry returns a new noop registry
-func NewRegistry(opts ...Option) Registry {
-	return &noopRegistry{opts: NewOptions(opts...)}
-}

resolver/registry/registry.go

@@ -1,22 +1,22 @@
-// Package registry resolves names using the micro registry
+// Package register resolves names using the micro register
-package registry
+package register
 
 import (
 	"context"
 
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 	"github.com/unistack-org/micro/v3/resolver"
 )
 
-// Resolver is a registry network resolver
+// Resolver is a register network resolver
 type Resolver struct {
-	// Registry is the registry to use otherwise we use the defaul
+	// Register is the register to use otherwise we use the defaul
-	Registry registry.Registry
+	Register register.Register
 }
 
 // Resolve assumes ID is a domain name e.g micro.mu
 func (r *Resolver) Resolve(name string) ([]*resolver.Record, error) {
-	services, err := r.Registry.GetService(context.TODO(), name)
+	services, err := r.Register.LookupService(context.TODO(), name)
 	if err != nil {
 		return nil, err
 	}

router/options.go

@@ -5,11 +5,12 @@ import (
 
 	"github.com/google/uuid"
 	"github.com/unistack-org/micro/v3/logger"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 )
 
 // Options are router options
 type Options struct {
+	Name string
 	// Id is router id
 	Id string
 	// Address is router address
@@ -18,8 +19,8 @@ type Options struct {
 	Gateway string
 	// Network is network address
 	Network string
-	// Registry is the local registry
+	// Register is the local register
-	Registry registry.Registry
+	Register register.Register
 	// Precache routes
 	Precache bool
 	// Logger
@@ -63,10 +64,10 @@ func Logger(l logger.Logger) Option {
 	}
 }
 
-// Registry sets the local registry
+// Register sets the local register
-func Registry(r registry.Registry) Option {
+func Register(r register.Register) Option {
 	return func(o *Options) {
-		o.Registry = r
+		o.Register = r
 	}
 }
 
@@ -77,12 +78,19 @@ func Precache() Option {
 	}
 }
 
+// Name of the router
+func Name(n string) Option {
+	return func(o *Options) {
+		o.Name = n
+	}
+}
+
 // NewOptions returns router default options
 func NewOptions(opts ...Option) Options {
 	options := Options{
 		Id:       uuid.New().String(),
 		Network:  DefaultNetwork,
-		Registry: registry.DefaultRegistry,
+		Register: register.DefaultRegister,
 		Logger:   logger.DefaultLogger,
 		Context:  context.Background(),
 	}

router/router.go

@@ -18,6 +18,7 @@ var (
 
 // Router is an interface for a routing control plane
 type Router interface {
+	Name() string
 	// Init initializes the router with options
 	Init(...Option) error
 	// Options returns the router options

server/handler.go

@@ -3,13 +3,13 @@ package server
 import (
 	"reflect"
 
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 )
 
 type rpcHandler struct {
 	name      string
 	handler   interface{}
-	endpoints []*registry.Endpoint
+	endpoints []*register.Endpoint
 	opts      HandlerOptions
 }
 
@@ -20,10 +20,10 @@ func newRpcHandler(handler interface{}, opts ...HandlerOption) Handler {
 	hdlr := reflect.ValueOf(handler)
 	name := reflect.Indirect(hdlr).Type().Name()
 
-	var endpoints []*registry.Endpoint
+	var endpoints []*register.Endpoint
 
 	for m := 0; m < typ.NumMethod(); m++ {
-		if e := registry.ExtractEndpoint(typ.Method(m)); e != nil {
+		if e := register.ExtractEndpoint(typ.Method(m)); e != nil {
 			e.Name = name + "." + e.Name
 
 			for k, v := range options.Metadata[e.Name] {
@@ -50,7 +50,7 @@ func (r *rpcHandler) Handler() interface{} {
 	return r.handler
 }
 
-func (r *rpcHandler) Endpoints() []*registry.Endpoint {
+func (r *rpcHandler) Endpoints() []*register.Endpoint {
 	return r.endpoints
 }
 

server/noop.go

@@ -13,7 +13,7 @@ import (
 	"github.com/unistack-org/micro/v3/broker"
 	"github.com/unistack-org/micro/v3/codec"
 	"github.com/unistack-org/micro/v3/logger"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 )
 
 var (
@@ -34,7 +34,7 @@ const (
 type noopServer struct {
 	h           Handler
 	opts        Options
-	rsvc        *registry.Service
+	rsvc        *register.Service
 	handlers    map[string]Handler
 	subscribers map[*subscriber][]broker.Subscriber
 	registered  bool
@@ -64,6 +64,10 @@ func (n *noopServer) Handle(handler Handler) error {
 	return nil
 }
 
+func (n *noopServer) Name() string {
+	return n.opts.Name
+}
+
 func (n *noopServer) Subscribe(sb Subscriber) error {
 	sub, ok := sb.(*subscriber)
 	if !ok {
@@ -137,10 +141,10 @@ func (n *noopServer) Register() error {
 	}
 
 	var err error
-	var service *registry.Service
+	var service *register.Service
 	var cacheService bool
 
-	service, err = NewRegistryService(n)
+	service, err = NewRegisterService(n)
 	if err != nil {
 		return err
 	}
@@ -168,7 +172,7 @@ func (n *noopServer) Register() error {
 		return subscriberList[i].topic > subscriberList[j].topic
 	})
 
-	endpoints := make([]*registry.Endpoint, 0, len(handlerList)+len(subscriberList))
+	endpoints := make([]*register.Endpoint, 0, len(handlerList)+len(subscriberList))
 	for _, h := range handlerList {
 		endpoints = append(endpoints, n.handlers[h].Endpoints()...)
 	}
@@ -187,7 +191,7 @@ func (n *noopServer) Register() error {
 
 	if !registered {
 		if config.Logger.V(logger.InfoLevel) {
-			config.Logger.Infof(n.opts.Context, "registry [%s] Registering node: %s", config.Registry.String(), service.Nodes[0].Id)
+			config.Logger.Infof(n.opts.Context, "register [%s] Registering node: %s", config.Register.String(), service.Nodes[0].Id)
 		}
 	}
 
@@ -244,7 +248,7 @@ func (n *noopServer) Deregister() error {
 	config := n.opts
 	n.RUnlock()
 
-	service, err := NewRegistryService(n)
+	service, err := NewRegisterService(n)
 	if err != nil {
 		return err
 	}

server/options.go

@@ -14,7 +14,7 @@ import (
 	"github.com/unistack-org/micro/v3/metadata"
 	"github.com/unistack-org/micro/v3/meter"
 	"github.com/unistack-org/micro/v3/network/transport"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 	"github.com/unistack-org/micro/v3/tracer"
 )
 
@@ -25,7 +25,7 @@ type Option func(*Options)
 type Options struct {
 	Codecs       map[string]codec.Codec
 	Broker       broker.Broker
-	Registry     registry.Registry
+	Register     register.Register
 	Tracer       tracer.Tracer
 	Auth         auth.Auth
 	Logger       logger.Logger
@@ -83,7 +83,7 @@ func NewOptions(opts ...Option) Options {
 		Meter:            meter.DefaultMeter,
 		Tracer:           tracer.DefaultTracer,
 		Broker:           broker.DefaultBroker,
-		Registry:         registry.DefaultRegistry,
+		Register:         register.DefaultRegister,
 		Transport:        transport.DefaultTransport,
 		Address:          DefaultAddress,
 		Name:             DefaultName,
@@ -178,10 +178,10 @@ func Context(ctx context.Context) Option {
 	}
 }
 
-// Registry used for discovery
+// Register used for discovery
-func Registry(r registry.Registry) Option {
+func Register(r register.Register) Option {
 	return func(o *Options) {
-		o.Registry = r
+		o.Register = r
 	}
 }
 
@@ -213,7 +213,7 @@ func Metadata(md metadata.Metadata) Option {
 	}
 }
 
-// RegisterCheck run func before registry service
+// RegisterCheck run func before register service
 func RegisterCheck(fn func(context.Context) error) Option {
 	return func(o *Options) {
 		o.RegisterCheck = fn

server/registry.go

@@ -5,23 +5,23 @@ import (
 	"time"
 
 	"github.com/unistack-org/micro/v3/metadata"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 	"github.com/unistack-org/micro/v3/util/addr"
 	"github.com/unistack-org/micro/v3/util/backoff"
 )
 
 var (
 	// DefaultRegisterFunc uses backoff to register service
-	DefaultRegisterFunc = func(svc *registry.Service, config Options) error {
+	DefaultRegisterFunc = func(svc *register.Service, config Options) error {
 		var err error
 
-		opts := []registry.RegisterOption{
+		opts := []register.RegisterOption{
-			registry.RegisterTTL(config.RegisterTTL),
+			register.RegisterTTL(config.RegisterTTL),
-			registry.RegisterDomain(config.Namespace),
+			register.RegisterDomain(config.Namespace),
 		}
 
 		for i := 0; i <= config.RegisterAttempts; i++ {
-			err = config.Registry.Register(config.Context, svc, opts...)
+			err = config.Register.Register(config.Context, svc, opts...)
 			if err == nil {
 				break
 			}
@@ -32,15 +32,15 @@ var (
 		return err
 	}
 	// DefaultDeregisterFunc uses backoff to deregister service
-	DefaultDeregisterFunc = func(svc *registry.Service, config Options) error {
+	DefaultDeregisterFunc = func(svc *register.Service, config Options) error {
 		var err error
 
-		opts := []registry.DeregisterOption{
+		opts := []register.DeregisterOption{
-			registry.DeregisterDomain(config.Namespace),
+			register.DeregisterDomain(config.Namespace),
 		}
 
 		for i := 0; i <= config.DeregisterAttempts; i++ {
-			err = config.Registry.Deregister(config.Context, svc, opts...)
+			err = config.Register.Deregister(config.Context, svc, opts...)
 			if err == nil {
 				break
 			}
@@ -52,8 +52,8 @@ var (
 	}
 )
 
-// NewRegistryService returns *registry.Service from Server
+// NewRegisterService returns *register.Service from Server
-func NewRegistryService(s Server) (*registry.Service, error) {
+func NewRegisterService(s Server) (*register.Service, error) {
 	opts := s.Options()
 
 	advt := opts.Address
@@ -71,7 +71,7 @@ func NewRegistryService(s Server) (*registry.Service, error) {
 		addr = host
 	}
 
-	node := &registry.Node{
+	node := &register.Node{
 		Id:      opts.Name + "-" + opts.Id,
 		Address: net.JoinHostPort(addr, port),
 	}
@@ -79,12 +79,12 @@ func NewRegistryService(s Server) (*registry.Service, error) {
 
 	node.Metadata["server"] = s.String()
 	node.Metadata["broker"] = opts.Broker.String()
-	node.Metadata["registry"] = opts.Registry.String()
+	node.Metadata["register"] = opts.Register.String()
 
-	return &registry.Service{
+	return &register.Service{
 		Name:     opts.Name,
 		Version:  opts.Version,
-		Nodes:    []*registry.Node{node},
+		Nodes:    []*register.Node{node},
 		Metadata: metadata.New(0),
 	}, nil
 }

server/server.go

@@ -8,7 +8,7 @@ import (
 	"github.com/google/uuid"
 	"github.com/unistack-org/micro/v3/codec"
 	"github.com/unistack-org/micro/v3/metadata"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 )
 
 var (
@@ -29,7 +29,7 @@ var (
 	DefaultRegisterCheck = func(context.Context) error { return nil }
 	// DefaultRegisterInterval holds interval for register
 	DefaultRegisterInterval = time.Second * 30
-	// DefaultRegisterTTL holds registry record ttl, must be multiple of DefaultRegisterInterval
+	// DefaultRegisterTTL holds register record ttl, must be multiple of DefaultRegisterInterval
 	DefaultRegisterTTL = time.Second * 90
 	// DefaultNamespace will be used if no namespace passed
 	DefaultNamespace = "micro"
@@ -43,6 +43,8 @@ var (
 
 // Server is a simple micro server abstraction
 type Server interface {
+	// Name returns server name
+	Name() string
 	// Initialise options
 	Init(...Option) error
 	// Retrieve the options
@@ -147,7 +149,7 @@ type Stream interface {
 type Handler interface {
 	Name() string
 	Handler() interface{}
-	Endpoints() []*registry.Endpoint
+	Endpoints() []*register.Endpoint
 	Options() HandlerOptions
 }
 
@@ -157,6 +159,6 @@ type Handler interface {
 type Subscriber interface {
 	Topic() string
 	Subscriber() interface{}
-	Endpoints() []*registry.Endpoint
+	Endpoints() []*register.Endpoint
 	Options() SubscriberOptions
 }

server/subscriber.go

@@ -14,7 +14,7 @@ import (
 	"github.com/unistack-org/micro/v3/errors"
 	"github.com/unistack-org/micro/v3/logger"
 	"github.com/unistack-org/micro/v3/metadata"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 )
 
 const (
@@ -39,7 +39,7 @@ type subscriber struct {
 	typ        reflect.Type
 	subscriber interface{}
 	handlers   []*handler
-	endpoints  []*registry.Endpoint
+	endpoints  []*register.Endpoint
 	opts       SubscriberOptions
 }
 
@@ -115,7 +115,7 @@ func ValidateSubscriber(sub Subscriber) error {
 }
 
 func newSubscriber(topic string, sub interface{}, opts ...SubscriberOption) Subscriber {
-	var endpoints []*registry.Endpoint
+	var endpoints []*register.Endpoint
 	var handlers []*handler
 
 	options := NewSubscriberOptions(opts...)
@@ -134,9 +134,9 @@ func newSubscriber(topic string, sub interface{}, opts ...SubscriberOption) Subs
 		}
 
 		handlers = append(handlers, h)
-		ep := &registry.Endpoint{
+		ep := &register.Endpoint{
 			Name:     "Func",
-			Request:  registry.ExtractSubValue(typ),
+			Request:  register.ExtractSubValue(typ),
 			Metadata: metadata.New(2),
 		}
 		ep.Metadata.Set("topic", topic)
@@ -161,9 +161,9 @@ func newSubscriber(topic string, sub interface{}, opts ...SubscriberOption) Subs
 			}
 
 			handlers = append(handlers, h)
-			ep := &registry.Endpoint{
+			ep := &register.Endpoint{
 				Name:     name + "." + method.Name,
-				Request:  registry.ExtractSubValue(method.Type),
+				Request:  register.ExtractSubValue(method.Type),
 				Metadata: metadata.New(2),
 			}
 			ep.Metadata.Set("topic", topic)
@@ -304,7 +304,7 @@ func (s *subscriber) Subscriber() interface{} {
 	return s.subscriber
 }
 
-func (s *subscriber) Endpoints() []*registry.Endpoint {
+func (s *subscriber) Endpoints() []*register.Endpoint {
 	return s.endpoints
 }
 

service.go

@@ -1,8 +1,8 @@
+// Package micro is a pluggable framework for microservices
 package micro
 
 import (
 	"fmt"
-	rtime "runtime"
 	"sync"
 
 	"github.com/unistack-org/micro/v3/auth"
@@ -10,31 +10,86 @@ import (
 	"github.com/unistack-org/micro/v3/client"
 	"github.com/unistack-org/micro/v3/config"
 	"github.com/unistack-org/micro/v3/logger"
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/meter"
+	"github.com/unistack-org/micro/v3/register"
 	"github.com/unistack-org/micro/v3/router"
 	"github.com/unistack-org/micro/v3/server"
 	"github.com/unistack-org/micro/v3/store"
+	"github.com/unistack-org/micro/v3/tracer"
 )
 
+// Service is an interface that wraps the lower level components.
+// Its works as container with building blocks for service.
+type Service interface {
+	// The service name
+	Name() string
+	// Init initialises options
+	Init(...Option) error
+	// Options returns the current options
+	Options() Options
+	// Auth is for handling auth
+	Auth(...string) auth.Auth
+	// Logger is for logs
+	Logger(...string) logger.Logger
+	// Config if for config
+	Config(...string) config.Config
+	// Client is for calling services
+	Client(...string) client.Client
+	// Broker is for sending and receiving events
+	Broker(...string) broker.Broker
+	// Server is for handling requests and events
+	Server(...string) server.Server
+	// Store is for key/val store
+	Store(...string) store.Store
+	// Register
+	Register(...string) register.Register
+	// Tracer
+	Tracer(...string) tracer.Tracer
+	// Router
+	Router(...string) router.Router
+	// Meter
+	Meter(...string) meter.Meter
+
+	// Runtime
+	// Runtime(string) (runtime.Runtime, bool)
+	// Profile
+	// Profile(string) (profile.Profile, bool)
+	// Run the service
+	Run() error
+	// The service implementation
+	String() string
+}
+
+// RegisterHandler is syntactic sugar for registering a handler
+func RegisterHandler(s server.Server, h interface{}, opts ...server.HandlerOption) error {
+	return s.Handle(s.NewHandler(h, opts...))
+}
+
+// RegisterSubscriber is syntactic sugar for registering a subscriber
+func RegisterSubscriber(topic string, s server.Server, h interface{}, opts ...server.SubscriberOption) error {
+	return s.Subscribe(s.NewSubscriber(topic, h, opts...))
+}
+
 type service struct {
 	opts Options
 	sync.RWMutex
 	//	once sync.Once
 }
 
-func newService(opts ...Option) Service {
+// NewService creates and returns a new Service based on the packages within.
-	service := &service{opts: NewOptions(opts...)}
+func NewService(opts ...Option) Service {
-	return service
+	return &service{opts: NewOptions(opts...)}
 }
 
 func (s *service) Name() string {
-	return s.opts.Server.Options().Name
+	return s.opts.Name
 }
 
 // Init initialises options. Additionally it calls cmd.Init
 // which parses command line flags. cmd.Init is only called
 // on first Init.
 func (s *service) Init(opts ...Option) error {
+	var err error
 	// process options
 	for _, o := range opts {
 		o(&s.opts)
@@ -45,60 +100,48 @@ func (s *service) Init(opts ...Option) error {
 			// skip config as the struct not passed
 			continue
 		}
-		if err := cfg.Init(config.Context(s.opts.Context)); err != nil {
+		if err = cfg.Init(config.Context(s.opts.Context)); err != nil {
 			return err
 		}
 
-		if err := cfg.Load(s.opts.Context); err != nil {
+		if err = cfg.Load(s.opts.Context); err != nil {
 			return err
 		}
 
 	}
 
-	if s.opts.Logger != nil {
+	for _, log := range s.opts.Loggers {
-		if err := s.opts.Logger.Init(
+		if err = log.Init(logger.WithContext(s.opts.Context)); err != nil {
-			logger.WithContext(s.opts.Context),
-		); err != nil {
 			return err
 		}
 	}
 
-	if s.opts.Registry != nil {
+	for _, reg := range s.opts.Registers {
-		if err := s.opts.Registry.Init(
+		if err = reg.Init(register.Context(s.opts.Context)); err != nil {
-			registry.Context(s.opts.Context),
-		); err != nil {
 			return err
 		}
 	}
 
-	if s.opts.Broker != nil {
+	for _, brk := range s.opts.Brokers {
-		if err := s.opts.Broker.Init(
+		if err = brk.Init(broker.Context(s.opts.Context)); err != nil {
-			broker.Context(s.opts.Context),
-		); err != nil {
 			return err
 		}
 	}
 
-	if s.opts.Store != nil {
+	for _, str := range s.opts.Stores {
-		if err := s.opts.Store.Init(
+		if err = str.Init(store.Context(s.opts.Context)); err != nil {
-			store.Context(s.opts.Context),
-		); err != nil {
 			return err
 		}
 	}
 
-	if s.opts.Server != nil {
+	for _, srv := range s.opts.Servers {
-		if err := s.opts.Server.Init(
+		if err = srv.Init(server.Context(s.opts.Context)); err != nil {
-			server.Context(s.opts.Context),
-		); err != nil {
 			return err
 		}
 	}
 
-	if s.opts.Client != nil {
+	for _, cli := range s.opts.Clients {
-		if err := s.opts.Client.Init(
+		if err = cli.Init(client.Context(s.opts.Context)); err != nil {
-			client.Context(s.opts.Context),
-		); err != nil {
 			return err
 		}
 	}
@@ -110,36 +153,93 @@ func (s *service) Options() Options {
 	return s.opts
 }
 
-func (s *service) Broker() broker.Broker {
+func (s *service) Broker(names ...string) broker.Broker {
-	return s.opts.Broker
+	idx := 0
+	if len(names) == 1 {
+		idx = getNameIndex(names[0], s.opts.Brokers)
+	}
+	return s.opts.Brokers[idx]
+
 }
 
-func (s *service) Client() client.Client {
+func (s *service) Tracer(names ...string) tracer.Tracer {
-	return s.opts.Client
+	idx := 0
+	if len(names) == 1 {
+		idx = getNameIndex(names[0], s.opts.Tracers)
+	}
+	return s.opts.Tracers[idx]
 }
 
-func (s *service) Server() server.Server {
+func (s *service) Config(names ...string) config.Config {
-	return s.opts.Server
+	idx := 0
+	if len(names) == 1 {
+		idx = getNameIndex(names[0], s.opts.Configs)
+	}
+	return s.opts.Configs[idx]
 }
 
-func (s *service) Store() store.Store {
+func (s *service) Client(names ...string) client.Client {
-	return s.opts.Store
+	idx := 0
+	if len(names) == 1 {
+		idx = getNameIndex(names[0], s.opts.Clients)
+	}
+	return s.opts.Clients[idx]
 }
 
-func (s *service) Registry() registry.Registry {
+func (s *service) Server(names ...string) server.Server {
-	return s.opts.Registry
+	idx := 0
+	if len(names) == 1 {
+		idx = getNameIndex(names[0], s.opts.Servers)
+	}
+	return s.opts.Servers[idx]
 }
 
-func (s *service) Logger() logger.Logger {
+func (s *service) Store(names ...string) store.Store {
-	return s.opts.Logger
+	idx := 0
+	if len(names) == 1 {
+		idx = getNameIndex(names[0], s.opts.Stores)
+	}
+	return s.opts.Stores[idx]
 }
 
-func (s *service) Auth() auth.Auth {
+func (s *service) Register(names ...string) register.Register {
-	return s.opts.Auth
+	idx := 0
+	if len(names) == 1 {
+		idx = getNameIndex(names[0], s.opts.Registers)
+	}
+	return s.opts.Registers[idx]
 }
 
-func (s *service) Router() router.Router {
+func (s *service) Logger(names ...string) logger.Logger {
-	return s.opts.Router
+	idx := 0
+	if len(names) == 1 {
+		idx = getNameIndex(names[0], s.opts.Loggers)
+	}
+	return s.opts.Loggers[idx]
+}
+
+func (s *service) Auth(names ...string) auth.Auth {
+	idx := 0
+	if len(names) == 1 {
+		idx = getNameIndex(names[0], s.opts.Auths)
+	}
+	return s.opts.Auths[idx]
+}
+
+func (s *service) Router(names ...string) router.Router {
+	idx := 0
+	if len(names) == 1 {
+		idx = getNameIndex(names[0], s.opts.Routers)
+	}
+	return s.opts.Routers[idx]
+}
+
+func (s *service) Meter(names ...string) meter.Meter {
+	idx := 0
+	if len(names) == 1 {
+		idx = getNameIndex(names[0], s.opts.Meters)
+	}
+	return s.opts.Meters[idx]
 }
 
 func (s *service) String() string {
@@ -153,8 +253,8 @@ func (s *service) Start() error {
 	config := s.opts
 	s.RUnlock()
 
-	if config.Logger.V(logger.InfoLevel) {
+	if config.Loggers[0].V(logger.InfoLevel) {
-		config.Logger.Infof(s.opts.Context, "starting [service] %s", s.Name())
+		config.Loggers[0].Infof(s.opts.Context, "starting [service] %s", s.Name())
 	}
 
 	for _, fn := range s.opts.BeforeStart {
@@ -169,35 +269,37 @@ func (s *service) Start() error {
 			continue
 		}
 
-		if err := cfg.Load(s.opts.Context); err != nil {
+		if err = cfg.Load(s.opts.Context); err != nil {
 			return err
 		}
 	}
 
-	if s.opts.Server == nil {
+	if len(s.opts.Servers) == 0 {
 		return fmt.Errorf("cant start nil server")
 	}
 
-	if s.opts.Registry != nil {
+	for _, reg := range s.opts.Registers {
-		if err := s.opts.Registry.Connect(s.opts.Context); err != nil {
+		if err = reg.Connect(s.opts.Context); err != nil {
 			return err
 		}
 	}
 
-	if s.opts.Broker != nil {
+	for _, brk := range s.opts.Brokers {
-		if err := s.opts.Broker.Connect(s.opts.Context); err != nil {
+		if err = brk.Connect(s.opts.Context); err != nil {
 			return err
 		}
 	}
 
-	if s.opts.Store != nil {
+	for _, str := range s.opts.Stores {
-		if err := s.opts.Store.Connect(s.opts.Context); err != nil {
+		if err = str.Connect(s.opts.Context); err != nil {
 			return err
 		}
 	}
 
-	if err = s.opts.Server.Start(); err != nil {
+	for _, srv := range s.opts.Servers {
-		return err
+		if err = srv.Start(); err != nil {
+			return err
+		}
 	}
 
 	for _, fn := range s.opts.AfterStart {
@@ -214,8 +316,8 @@ func (s *service) Stop() error {
 	config := s.opts
 	s.RUnlock()
 
-	if config.Logger.V(logger.InfoLevel) {
+	if config.Loggers[0].V(logger.InfoLevel) {
-		config.Logger.Infof(s.opts.Context, "stoppping [service] %s", s.Name())
+		config.Loggers[0].Infof(s.opts.Context, "stoppping [service] %s", s.Name())
 	}
 
 	var err error
@@ -225,8 +327,10 @@ func (s *service) Stop() error {
 		}
 	}
 
-	if err = s.opts.Server.Stop(); err != nil {
+	for _, srv := range s.opts.Servers {
-		return err
+		if err = srv.Stop(); err != nil {
+			return err
+		}
 	}
 
 	for _, fn := range s.opts.AfterStop {
@@ -235,20 +339,20 @@ func (s *service) Stop() error {
 		}
 	}
 
-	if s.opts.Registry != nil {
+	for _, reg := range s.opts.Registers {
-		if err := s.opts.Registry.Disconnect(s.opts.Context); err != nil {
+		if err = reg.Disconnect(s.opts.Context); err != nil {
 			return err
 		}
 	}
 
-	if s.opts.Broker != nil {
+	for _, brk := range s.opts.Brokers {
-		if err := s.opts.Broker.Disconnect(s.opts.Context); err != nil {
+		if err = brk.Disconnect(s.opts.Context); err != nil {
 			return err
 		}
 	}
 
-	if s.opts.Store != nil {
+	for _, str := range s.opts.Stores {
-		if err := s.opts.Store.Disconnect(s.opts.Context); err != nil {
+		if err = str.Disconnect(s.opts.Context); err != nil {
 			return err
 		}
 	}
@@ -258,18 +362,19 @@ func (s *service) Stop() error {
 
 func (s *service) Run() error {
 	// start the profiler
-	if s.opts.Profile != nil {
+	/*
-		// to view mutex contention
+		if s.opts.Profile != nil {
-		rtime.SetMutexProfileFraction(5)
+			// to view mutex contention
-		// to view blocking profile
+			rtime.SetMutexProfileFraction(5)
-		rtime.SetBlockProfileRate(1)
+			// to view blocking profile
+			rtime.SetBlockProfileRate(1)
 
-		if err := s.opts.Profile.Start(); err != nil {
+			if err := s.opts.Profile.Start(); err != nil {
-			return err
+				return err
+			}
+			defer s.opts.Profile.Stop()
 		}
-		defer s.opts.Profile.Stop()
+	*/
-	}
-
 	if err := s.Start(); err != nil {
 		return err
 	}
@@ -279,3 +384,16 @@ func (s *service) Run() error {
 
 	return s.Stop()
 }
+
+type nameIface interface {
+	Name() string
+}
+
+func getNameIndex(n string, ifaces ...interface{}) int {
+	for idx, iface := range ifaces {
+		if ifc, ok := iface.(nameIface); ok && ifc.Name() == n {
+			return idx
+		}
+	}
+	return 0
+}

store/noop.go

@@ -23,6 +23,11 @@ func (n *noopStore) Options() Options {
 	return n.opts
 }
 
+// Name
+func (n *noopStore) Name() string {
+	return n.opts.Name
+}
+
 // String returns string representation
 func (n *noopStore) String() string {
 	return "noop"

store/options.go

@@ -14,6 +14,7 @@ import (
 
 // Options contains configuration for the Store
 type Options struct {
+	Name string
 	// Nodes contains the addresses or other connection information of the backing storage.
 	// For example, an etcd implementation would contain the nodes of the cluster.
 	// A SQL implementation could contain one or more connection strings.

store/store.go

@@ -20,6 +20,7 @@ var (
 
 // Store is a data storage interface
 type Store interface {
+	Name() string
 	// Init initialises the store
 	Init(opts ...Option) error
 	// Connect is used when store needs to be connected

tracer/noop.go

@@ -6,6 +6,10 @@ type noopTracer struct {
 	opts Options
 }
 
+func (n *noopTracer) Name() string {
+	return n.opts.Name
+}
+
 // Init initilize tracer
 func (n *noopTracer) Init(opts ...Option) error {
 	for _, o := range opts {
@@ -19,6 +23,11 @@ func (n *noopTracer) Start(ctx context.Context, name string) (context.Context, *
 	return nil, nil
 }
 
+// Lookup get span from context
+func (n *noopTracer) Lookup(ctx context.Context) (*Span, error) {
+	return nil, nil
+}
+
 // Finish finishes span
 func (n *noopTracer) Finish(*Span) error {
 	return nil

tracer/options.go

@@ -9,6 +9,7 @@ var (
 
 // Options struct
 type Options struct {
+	Name string
 	// Logger is the logger for messages
 	Logger logger.Logger
 	// Size is the size of ring buffer

tracer/tracer.go

@@ -15,10 +15,14 @@ var (
 
 // Tracer is an interface for distributed tracing
 type Tracer interface {
+	Name() string
+	Init(...Option) error
 	// Start a trace
 	Start(ctx context.Context, name string) (context.Context, *Span)
 	// Finish the trace
 	Finish(*Span) error
+	// Lookup get span from context
+	Lookup(ctx context.Context) (*Span, error)
 	// Read the traces
 	Read(...ReadOption) ([]*Span, error)
 }

util/http/http_test.go

@@ -8,15 +8,15 @@ import (
 	"net/http"
 	"testing"
 
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
-	"github.com/unistack-org/micro/v3/registry/memory"
+	"github.com/unistack-org/micro/v3/register/memory"
 	"github.com/unistack-org/micro/v3/router"
-	regRouter "github.com/unistack-org/micro/v3/router/registry"
+	regRouter "github.com/unistack-org/micro/v3/router/register"
 )
 
 func TestRoundTripper(t *testing.T) {
-	m := memory.NewRegistry()
+	m := memory.NewRegister()
-	r := regRouter.NewRouter(router.Registry(m))
+	r := regRouter.NewRouter(router.Register(m))
 
 	rt := NewRoundTripper(WithRouter(r))
 
@@ -32,9 +32,9 @@ func TestRoundTripper(t *testing.T) {
 
 	go http.Serve(l, nil)
 
-	m.Register(&registry.Service{
+	m.Register(&register.Service{
 		Name: "example.com",
-		Nodes: []*registry.Node{
+		Nodes: []*register.Node{
 			{
 				Id:      "1",
 				Address: l.Addr().String(),

util/registry/util.go

@@ -1,11 +1,11 @@
-package registry
+package register
 
 import (
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 )
 
-func addNodes(old, neu []*registry.Node) []*registry.Node {
+func addNodes(old, neu []*register.Node) []*register.Node {
-	nodes := make([]*registry.Node, len(neu))
+	nodes := make([]*register.Node, len(neu))
 	// add all new nodes
 	for i, n := range neu {
 		node := *n
@@ -35,8 +35,8 @@ func addNodes(old, neu []*registry.Node) []*registry.Node {
 	return nodes
 }
 
-func delNodes(old, del []*registry.Node) []*registry.Node {
+func delNodes(old, del []*register.Node) []*register.Node {
-	var nodes []*registry.Node
+	var nodes []*register.Node
 	for _, o := range old {
 		var rem bool
 		for _, n := range del {
@@ -53,24 +53,24 @@ func delNodes(old, del []*registry.Node) []*registry.Node {
 }
 
 // CopyService make a copy of service
-func CopyService(service *registry.Service) *registry.Service {
+func CopyService(service *register.Service) *register.Service {
 	// copy service
-	s := &registry.Service{}
+	s := &register.Service{}
 	*s = *service
 
 	// copy nodes
-	nodes := make([]*registry.Node, len(service.Nodes))
+	nodes := make([]*register.Node, len(service.Nodes))
 	for j, node := range service.Nodes {
-		n := &registry.Node{}
+		n := &register.Node{}
 		*n = *node
 		nodes[j] = n
 	}
 	s.Nodes = nodes
 
 	// copy endpoints
-	eps := make([]*registry.Endpoint, len(service.Endpoints))
+	eps := make([]*register.Endpoint, len(service.Endpoints))
 	for j, ep := range service.Endpoints {
-		e := &registry.Endpoint{}
+		e := &register.Endpoint{}
 		*e = *ep
 		eps[j] = e
 	}
@@ -79,8 +79,8 @@ func CopyService(service *registry.Service) *registry.Service {
 }
 
 // Copy makes a copy of services
-func Copy(current []*registry.Service) []*registry.Service {
+func Copy(current []*register.Service) []*register.Service {
-	services := make([]*registry.Service, len(current))
+	services := make([]*register.Service, len(current))
 	for i, service := range current {
 		services[i] = CopyService(service)
 	}
@@ -88,14 +88,14 @@ func Copy(current []*registry.Service) []*registry.Service {
 }
 
 // Merge merges two lists of services and returns a new copy
-func Merge(olist []*registry.Service, nlist []*registry.Service) []*registry.Service {
+func Merge(olist []*register.Service, nlist []*register.Service) []*register.Service {
-	var srv []*registry.Service
+	var srv []*register.Service
 
 	for _, n := range nlist {
 		var seen bool
 		for _, o := range olist {
 			if o.Version == n.Version {
-				sp := &registry.Service{}
+				sp := &register.Service{}
 				// make copy
 				*sp = *o
 				// set nodes
@@ -106,25 +106,25 @@ func Merge(olist []*registry.Service, nlist []*registry.Service) []*registry.Ser
 				srv = append(srv, sp)
 				break
 			} else {
-				sp := &registry.Service{}
+				sp := &register.Service{}
 				// make copy
 				*sp = *o
 				srv = append(srv, sp)
 			}
 		}
 		if !seen {
-			srv = append(srv, Copy([]*registry.Service{n})...)
+			srv = append(srv, Copy([]*register.Service{n})...)
 		}
 	}
 	return srv
 }
 
 // Remove removes services and returns a new copy
-func Remove(old, del []*registry.Service) []*registry.Service {
+func Remove(old, del []*register.Service) []*register.Service {
-	var services []*registry.Service
+	var services []*register.Service
 
 	for _, o := range old {
-		srv := &registry.Service{}
+		srv := &register.Service{}
 		*srv = *o
 
 		var rem bool

util/registry/util_test.go

@@ -1,18 +1,18 @@
-package registry
+package register
 
 import (
 	"os"
 	"testing"
 
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 )
 
 func TestRemove(t *testing.T) {
-	services := []*registry.Service{
+	services := []*register.Service{
 		{
 			Name:    "foo",
 			Version: "1.0.0",
-			Nodes: []*registry.Node{
+			Nodes: []*register.Node{
 				{
 					Id:      "foo-123",
 					Address: "localhost:9999",
@@ -22,7 +22,7 @@ func TestRemove(t *testing.T) {
 		{
 			Name:    "foo",
 			Version: "1.0.0",
-			Nodes: []*registry.Node{
+			Nodes: []*register.Node{
 				{
 					Id:      "foo-123",
 					Address: "localhost:6666",
@@ -31,7 +31,7 @@ func TestRemove(t *testing.T) {
 		},
 	}
 
-	servs := Remove([]*registry.Service{services[0]}, []*registry.Service{services[1]})
+	servs := Remove([]*register.Service{services[0]}, []*register.Service{services[1]})
 	if i := len(servs); i > 0 {
 		t.Errorf("Expected 0 nodes, got %d: %+v", i, servs)
 	}
@@ -41,11 +41,11 @@ func TestRemove(t *testing.T) {
 }
 
 func TestRemoveNodes(t *testing.T) {
-	services := []*registry.Service{
+	services := []*register.Service{
 		{
 			Name:    "foo",
 			Version: "1.0.0",
-			Nodes: []*registry.Node{
+			Nodes: []*register.Node{
 				{
 					Id:      "foo-123",
 					Address: "localhost:9999",
@@ -59,7 +59,7 @@ func TestRemoveNodes(t *testing.T) {
 		{
 			Name:    "foo",
 			Version: "1.0.0",
-			Nodes: []*registry.Node{
+			Nodes: []*register.Node{
 				{
 					Id:      "foo-123",
 					Address: "localhost:6666",

util/router/router.go

@@ -1,7 +1,7 @@
 package router
 
 import (
-	"github.com/unistack-org/micro/v3/registry"
+	"github.com/unistack-org/micro/v3/register"
 	"github.com/unistack-org/micro/v3/router"
 )
 
@@ -19,7 +19,7 @@ func (r *apiRouter) String() string {
 }
 
 // New router is a hack for API routing
-func New(srvs []*registry.Service) router.Router {
+func New(srvs []*register.Service) router.Router {
 	var routes []router.Route
 
 	for _, srv := range srvs {

util/sync/sync.go

@@ -78,6 +78,11 @@ func (c *syncStore) Init(opts ...store.Option) error {
 	return nil
 }
 
+// Name returns the store name
+func (c *syncStore) Name() string {
+	return c.storeOpts.Name
+}
+
 // Options returns the sync's store options
 func (c *syncStore) Options() store.Options {
 	return c.storeOpts