.gitignore

@@ -1,24 +0,0 @@
-# Binaries for programs and plugins
-*.exe
-*.exe~
-*.dll
-*.so
-*.dylib
-bin
-
-# Test binary, built with `go test -c`
-*.test
-
-# Output of the go coverage tool, specifically when used with LiteIDE
-*.out
-
-# Dependency directories (remove the comment below to include it)
-# vendor/
-
-# Go workspace file
-go.work
-
-# General
-.DS_Store
-.idea
-.vscode

go.mod

@@ -3,23 +3,14 @@ module go.unistack.org/micro-server-http/v4
 go 1.19
 
 require (
-	go.unistack.org/micro-codec-yaml/v4 v4.0.0
-	go.unistack.org/micro-proto/v4 v4.0.1
-	go.unistack.org/micro/v4 v4.0.17
-	go.unistack.org/protoc-gen-go-micro/v4 v4.0.13
-	golang.org/x/net v0.22.0
+	go.unistack.org/micro-proto/v4 v4.0.0
+	go.unistack.org/micro/v4 v4.0.1
+	golang.org/x/net v0.7.0
 )
 
 require (
-	github.com/fatih/structtag v1.2.0 // indirect
-	github.com/golang/protobuf v1.5.4 // indirect
-	github.com/google/gnostic v0.7.0 // indirect
-	github.com/google/gnostic-models v0.6.9-0.20230804172637-c7be7c783f49 // indirect
-	golang.org/x/mod v0.16.0 // indirect
-	golang.org/x/sys v0.18.0 // indirect
-	golang.org/x/tools v0.19.0 // indirect
-	google.golang.org/protobuf v1.33.0 // indirect
-	gopkg.in/yaml.v2 v2.4.0 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/gnostic v0.6.9 // indirect
+	google.golang.org/protobuf v1.28.1 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	sigs.k8s.io/yaml v1.4.0 // indirect
 )

handler.go

@@ -19,10 +19,10 @@ import (
 )
 
 var (
-	DefaultErrorHandler = func(ctx context.Context, s interface{}, w http.ResponseWriter, r *http.Request, err error, status int) {
+	DefaultErrorHandler = func(ctx context.Context, s server.Handler, w http.ResponseWriter, r *http.Request, err error, status int) {
 		w.WriteHeader(status)
 		if _, cerr := w.Write([]byte(err.Error())); cerr != nil {
-			logger.DefaultLogger.Error(ctx, fmt.Sprintf("write failed: %v", cerr))
+			logger.DefaultLogger.Errorf(ctx, "write failed: %v", cerr)
 		}
 	}
 	DefaultContentType = "application/json"
@@ -35,7 +35,7 @@ type patHandler struct {
 }
 
 type httpHandler struct {
-	opts     server.HandleOptions
+	opts     server.HandlerOptions
 	hd       interface{}
 	handlers *rhttp.Trie
 	name     string
@@ -56,287 +56,17 @@ func (h *httpHandler) Endpoints() []*register.Endpoint {
 	return h.eps
 }
 
-func (h *httpHandler) Options() server.HandleOptions {
+func (h *httpHandler) Options() server.HandlerOptions {
 	return h.opts
 }
 
-func (h *Server) HTTPHandlerFunc(handler interface{}) (http.HandlerFunc, error) {
-	if handler == nil {
-		return nil, fmt.Errorf("invalid handler specified: %v", handler)
+func (h *httpServer) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	// check for http.HandlerFunc handlers
+	if ph, _, err := h.pathHandlers.Search(r.Method, r.URL.Path); err == nil {
+		ph.(http.HandlerFunc)(w, r)
+		return
 	}
 
-	rtype := reflect.TypeOf(handler)
-	if rtype.NumIn() != 3 {
-		return nil, fmt.Errorf("invalid handler, NumIn != 3: %v", rtype.NumIn())
-	}
-
-	argType := rtype.In(1)
-	replyType := rtype.In(2)
-
-	// First arg need not be a pointer.
-	if !isExportedOrBuiltinType(argType) {
-		return nil, fmt.Errorf("invalid handler, argument type not exported: %v", argType)
-	}
-
-	if replyType.Kind() != reflect.Ptr {
-		return nil, fmt.Errorf("invalid handler, reply type not a pointer: %v", replyType)
-	}
-
-	// Reply type must be exported.
-	if !isExportedOrBuiltinType(replyType) {
-		return nil, fmt.Errorf("invalid handler, reply type not exported: %v", replyType)
-	}
-
-	if rtype.NumOut() != 1 {
-		return nil, fmt.Errorf("invalid handler, has wrong number of outs: %v", rtype.NumOut())
-	}
-
-	// The return type of the method must be error.
-	if returnType := rtype.Out(0); returnType != typeOfError {
-		return nil, fmt.Errorf("invalid handler, returns %v not error", returnType.String())
-	}
-
-	return func(w http.ResponseWriter, r *http.Request) {
-		ct := DefaultContentType
-		if htype := r.Header.Get(metadata.HeaderContentType); htype != "" {
-			ct = htype
-		}
-
-		ctx := context.WithValue(r.Context(), rspCodeKey{}, &rspCodeVal{})
-		ctx = context.WithValue(ctx, rspHeaderKey{}, &rspHeaderVal{})
-		md, ok := metadata.FromIncomingContext(ctx)
-		if !ok {
-			md = metadata.New(len(r.Header) + 8)
-		}
-		for k, v := range r.Header {
-			md[k] = v[0]
-		}
-		md["RemoteAddr"] = r.RemoteAddr
-		md["Method"] = r.Method
-		md["URL"] = r.URL.String()
-		md["Proto"] = r.Proto
-		md["Content-Length"] = fmt.Sprintf("%d", r.ContentLength)
-		md["Transfer-Encoding"] = r.TransferEncoding[0]
-		md["Host"] = r.Host
-		md["RequestURI"] = r.RequestURI
-		if r.TLS != nil {
-			md["TLS"] = "true"
-			md["TLS-ALPN"] = r.TLS.NegotiatedProtocol
-			md["TLS-ServerName"] = r.TLS.ServerName
-		}
-
-		ctx = metadata.NewIncomingContext(ctx, md)
-
-		path := r.URL.Path
-
-		if r.Body != nil {
-			defer r.Body.Close()
-		}
-
-		matches := make(map[string]interface{})
-		var match bool
-		var hldr *patHandler
-		var handler *httpHandler
-
-		for _, shdlr := range h.handlers {
-			hdlr := shdlr.(*httpHandler)
-			fh, mp, err := hdlr.handlers.Search(r.Method, path)
-			if err == nil {
-				match = true
-				for k, v := range mp {
-					matches[k] = v
-				}
-				hldr = fh.(*patHandler)
-				handler = hdlr
-				break
-			} else if err == rhttp.ErrMethodNotAllowed && !h.registerRPC {
-				w.WriteHeader(http.StatusMethodNotAllowed)
-				_, _ = w.Write([]byte("not matching route found"))
-				return
-			}
-		}
-
-		if !match && h.registerRPC {
-			microMethod, mok := md.Get(metadata.HeaderEndpoint)
-			if mok {
-				serviceMethod := strings.Split(microMethod, ".")
-				if len(serviceMethod) == 2 {
-					if shdlr, ok := h.handlers[serviceMethod[0]]; ok {
-						hdlr := shdlr.(*httpHandler)
-						fh, mp, err := hdlr.handlers.Search(http.MethodPost, "/"+microMethod)
-						if err == nil {
-							match = true
-							for k, v := range mp {
-								matches[k] = v
-							}
-							hldr = fh.(*patHandler)
-							handler = hdlr
-						}
-					}
-				}
-			}
-		}
-
-		// get fields from url values
-		if len(r.URL.RawQuery) > 0 {
-			umd, cerr := rflutil.URLMap(r.URL.RawQuery)
-			if cerr != nil {
-				w.WriteHeader(http.StatusInternalServerError)
-				_, _ = w.Write([]byte(cerr.Error()))
-				return
-			}
-			for k, v := range umd {
-				matches[k] = v
-			}
-		}
-
-		cf, err := h.newCodec(ct)
-		if err != nil {
-			w.WriteHeader(http.StatusBadRequest)
-			_, _ = w.Write([]byte(err.Error()))
-			return
-		}
-
-		var argv, replyv reflect.Value
-
-		// Decode the argument value.
-		argIsValue := false // if true, need to indirect before calling.
-		if hldr.mtype.ArgType.Kind() == reflect.Ptr {
-			argv = reflect.New(hldr.mtype.ArgType.Elem())
-		} else {
-			argv = reflect.New(hldr.mtype.ArgType)
-			argIsValue = true
-		}
-
-		if argIsValue {
-			argv = argv.Elem()
-		}
-
-		// reply value
-		replyv = reflect.New(hldr.mtype.ReplyType.Elem())
-
-		function := hldr.mtype.method.Func
-		var returnValues []reflect.Value
-
-		if r.Body != nil {
-			var buf []byte
-			buf, err = io.ReadAll(r.Body)
-			if err != nil && err != io.EOF {
-				h.errorHandler(ctx, handler, w, r, err, http.StatusInternalServerError)
-				return
-			}
-
-			if err = cf.Unmarshal(buf, argv.Interface()); err != nil {
-				h.errorHandler(ctx, handler, w, r, err, http.StatusBadRequest)
-				return
-			}
-		}
-
-		matches = rflutil.FlattenMap(matches)
-		if err = rflutil.Merge(argv.Interface(), matches, rflutil.SliceAppend(true), rflutil.Tags([]string{"protobuf", "json"})); err != nil {
-			h.errorHandler(ctx, handler, w, r, err, http.StatusBadRequest)
-			return
-		}
-
-		hr := &rpcRequest{
-			codec:       cf,
-			service:     handler.sopts.Name,
-			contentType: ct,
-			method:      fmt.Sprintf("%s.%s", hldr.name, hldr.mtype.method.Name),
-			endpoint:    fmt.Sprintf("%s.%s", hldr.name, hldr.mtype.method.Name),
-			payload:     argv.Interface(),
-			header:      md,
-		}
-
-		// define the handler func
-		fn := func(fctx context.Context, req server.Request, rsp interface{}) (err error) {
-			returnValues = function.Call([]reflect.Value{hldr.rcvr, hldr.mtype.prepareContext(fctx), argv, reflect.ValueOf(rsp)})
-
-			// The return value for the method is an error.
-			if rerr := returnValues[0].Interface(); rerr != nil {
-				err = rerr.(error)
-			}
-
-			md, ok := metadata.FromOutgoingContext(ctx)
-			if !ok {
-				md = metadata.New(0)
-			}
-			if nmd, ok := metadata.FromOutgoingContext(fctx); ok {
-				for k, v := range nmd {
-					md[k] = v
-				}
-			}
-
-			return err
-		}
-
-		// wrap the handler func
-		// for i := len(handler.sopts.Hooks); i > 0; i-- {
-		//	fn = handler.sopts.Hooks[i-1](fn)
-		// }
-
-		if ct == "application/x-www-form-urlencoded" {
-			cf, err = h.newCodec(DefaultContentType)
-			if err != nil {
-				h.errorHandler(ctx, handler, w, r, err, http.StatusInternalServerError)
-				return
-			}
-			ct = DefaultContentType
-		}
-
-		scode := int(200)
-		appErr := fn(ctx, hr, replyv.Interface())
-
-		w.Header().Set(metadata.HeaderContentType, ct)
-		if md, ok := metadata.FromOutgoingContext(ctx); ok {
-			for k, v := range md {
-				w.Header()[k] = []string{v}
-			}
-		}
-		if md := getRspHeader(ctx); md != nil {
-			for k, v := range md {
-				w.Header()[k] = v
-			}
-		}
-		if nct := w.Header().Get(metadata.HeaderContentType); nct != ct {
-			if cf, err = h.newCodec(nct); err != nil {
-				h.errorHandler(ctx, nil, w, r, err, http.StatusBadRequest)
-				return
-			}
-		}
-
-		var buf []byte
-		if appErr != nil {
-			switch verr := appErr.(type) {
-			case *errors.Error:
-				scode = int(verr.Code)
-				buf, err = cf.Marshal(verr)
-			case *Error:
-				buf, err = cf.Marshal(verr.err)
-			default:
-				buf, err = cf.Marshal(appErr)
-			}
-		} else {
-			buf, err = cf.Marshal(replyv.Interface())
-		}
-
-		if err != nil && handler.sopts.Logger.V(logger.ErrorLevel) {
-			handler.sopts.Logger.Error(handler.sopts.Context, fmt.Sprintf("handler err: %v", err))
-			return
-		}
-
-		if nscode := GetRspCode(ctx); nscode != 0 {
-			scode = nscode
-		}
-		w.WriteHeader(scode)
-
-		if _, cerr := w.Write(buf); cerr != nil {
-			handler.sopts.Logger.Error(ctx, fmt.Sprintf("write failed: %v", cerr))
-		}
-	}, nil
-}
-
-func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	ct := DefaultContentType
 	if htype := r.Header.Get(metadata.HeaderContentType); htype != "" {
 		ct = htype
@@ -349,25 +79,20 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		md = metadata.New(len(r.Header) + 8)
 	}
 	for k, v := range r.Header {
-		md[k] = v[0]
+		md[k] = strings.Join(v, ", ")
 	}
 	md["RemoteAddr"] = r.RemoteAddr
-	if r.TLS != nil {
-		md["Scheme"] = "https"
-	} else {
-		md["Scheme"] = "http"
-	}
 	md["Method"] = r.Method
 	md["URL"] = r.URL.String()
 	md["Proto"] = r.Proto
-	md["Content-Length"] = fmt.Sprintf("%d", r.ContentLength)
-	if len(r.TransferEncoding) > 0 {
-		md["Transfer-Encoding"] = r.TransferEncoding[0]
-	}
+	md["ContentLength"] = fmt.Sprintf("%d", r.ContentLength)
+	md["TransferEncoding"] = strings.Join(r.TransferEncoding, ",")
 	md["Host"] = r.Host
 	md["RequestURI"] = r.RequestURI
 	ctx = metadata.NewIncomingContext(ctx, md)
 
+	defer r.Body.Close()
+
 	path := r.URL.Path
 	if !strings.HasPrefix(path, "/") {
 		h.errorHandler(ctx, nil, w, r, fmt.Errorf("path must starts with /"), http.StatusBadRequest)
@@ -419,16 +144,11 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}
 
 	if !match && h.hd != nil {
-		if hdlr, ok := h.hd.(http.Handler); ok {
+		if hdlr, ok := h.hd.Handler().(http.Handler); ok {
 			hdlr.ServeHTTP(w, r)
 			return
 		}
 	} else if !match {
-		// check for http.HandlerFunc handlers
-		if ph, _, err := h.pathHandlers.Search(r.Method, r.URL.Path); err == nil {
-			ph.(http.HandlerFunc)(w, r)
-			return
-		}
 		h.errorHandler(ctx, nil, w, r, fmt.Errorf("not matching route found"), http.StatusNotFound)
 		return
 	}
@@ -445,10 +165,6 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	if r.Body != nil {
-		defer r.Body.Close()
-	}
-
 	cf, err := h.newCodec(ct)
 	if err != nil {
 		h.errorHandler(ctx, nil, w, r, err, http.StatusBadRequest)
@@ -476,26 +192,21 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	function := hldr.mtype.method.Func
 	var returnValues []reflect.Value
 
-	if r.Body != nil {
-		var buf []byte
-		buf, err = io.ReadAll(r.Body)
-		if err != nil && err != io.EOF {
-			h.errorHandler(ctx, handler, w, r, err, http.StatusInternalServerError)
-			return
-		}
-
-		if err = cf.Unmarshal(buf, argv.Interface()); err != nil {
-			h.errorHandler(ctx, handler, w, r, err, http.StatusBadRequest)
-			return
-		}
+	buf, err := io.ReadAll(r.Body)
+	if err != nil && err != io.EOF {
+		h.errorHandler(ctx, handler, w, r, err, http.StatusInternalServerError)
+		return
 	}
 
-	if len(matches) > 0 {
-		matches = rflutil.FlattenMap(matches)
-		if err = rflutil.Merge(argv.Interface(), matches, rflutil.SliceAppend(true), rflutil.Tags([]string{"protobuf", "json"})); err != nil {
-			h.errorHandler(ctx, handler, w, r, err, http.StatusBadRequest)
-			return
-		}
+	if err = cf.Unmarshal(buf, argv.Interface()); err != nil {
+		h.errorHandler(ctx, handler, w, r, err, http.StatusBadRequest)
+		return
+	}
+
+	matches = rflutil.FlattenMap(matches)
+	if err = rflutil.Merge(argv.Interface(), matches, rflutil.SliceAppend(true), rflutil.Tags([]string{"protobuf", "json"})); err != nil {
+		h.errorHandler(ctx, handler, w, r, err, http.StatusBadRequest)
+		return
 	}
 
 	hr := &rpcRequest{
@@ -523,17 +234,18 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		}
 		if nmd, ok := metadata.FromOutgoingContext(fctx); ok {
 			for k, v := range nmd {
-				md[k] = v
+				md.Set(k, v)
 			}
 		}
+		metadata.SetOutgoingContext(ctx, md)
 
 		return err
 	}
 
 	// wrap the handler func
-	// for i := len(handler.sopts.HdlrWrappers); i > 0; i-- {
-	//	fn = handler.sopts.HdlrWrappers[i-1](fn)
-	// }
+	for i := len(handler.sopts.HdlrWrappers); i > 0; i-- {
+		fn = handler.sopts.HdlrWrappers[i-1](fn)
+	}
 
 	if ct == "application/x-www-form-urlencoded" {
 		cf, err = h.newCodec(DefaultContentType)
@@ -550,7 +262,7 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	w.Header().Set(metadata.HeaderContentType, ct)
 	if md, ok := metadata.FromOutgoingContext(ctx); ok {
 		for k, v := range md {
-			w.Header()[k] = []string{v}
+			w.Header().Set(k, v)
 		}
 	}
 	if md := getRspHeader(ctx); md != nil {
@@ -567,7 +279,6 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 		}
 	}
 
-	var buf []byte
 	if appErr != nil {
 		switch verr := appErr.(type) {
 		case *errors.Error:
@@ -583,7 +294,7 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}
 
 	if err != nil && handler.sopts.Logger.V(logger.ErrorLevel) {
-		handler.sopts.Logger.Error(handler.sopts.Context, fmt.Sprintf("handler err: %v", err))
+		handler.sopts.Logger.Errorf(handler.sopts.Context, "handler err: %v", err)
 		return
 	}
 
@@ -593,6 +304,6 @@ func (h *Server) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	w.WriteHeader(scode)
 
 	if _, cerr := w.Write(buf); cerr != nil {
-		handler.sopts.Logger.Error(ctx, fmt.Sprintf("write failed: %v", cerr))
+		handler.sopts.Logger.Errorf(ctx, "write failed: %v", cerr)
 	}
 }

handler/health/health_micro.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
 // versions:
-// - protoc-gen-go-micro v4.0.2
-// - protoc              v4.23.4
+// - protoc-gen-go-micro v4.0.0
+// - protoc              v3.21.12
 // source: health/health.proto
 
 package health
@@ -9,11 +9,37 @@ package health
 import (
 	context "context"
 	codec "go.unistack.org/micro-proto/v4/codec"
+	v4 "go.unistack.org/micro-server-http/v4"
 )
 
 var (
 	HealthServiceName = "HealthService"
 )
+var (
+	HealthServiceServerEndpoints = []v4.EndpointMetadata{
+		{
+			Name:   "HealthService.Live",
+			Path:   "/live",
+			Method: "GET",
+			Body:   "",
+			Stream: false,
+		},
+		{
+			Name:   "HealthService.Ready",
+			Path:   "/ready",
+			Method: "GET",
+			Body:   "",
+			Stream: false,
+		},
+		{
+			Name:   "HealthService.Version",
+			Path:   "/version",
+			Method: "GET",
+			Body:   "",
+			Stream: false,
+		},
+	}
+)
 
 type HealthServiceServer interface {
 	Live(ctx context.Context, req *codec.Frame, rsp *codec.Frame) error

handler/health/health_micro_http.pb.go

@@ -1,5 +1,5 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
-// protoc-gen-go-micro version: v4.0.2
+// protoc-gen-go-micro version: v4.0.0
 // source: health/health.proto
 
 package health
@@ -8,36 +8,9 @@ import (
 	context "context"
 	codec "go.unistack.org/micro-proto/v4/codec"
 	v4 "go.unistack.org/micro-server-http/v4"
-	options "go.unistack.org/micro/v4/options"
 	server "go.unistack.org/micro/v4/server"
 )
 
-var (
-	HealthServiceServerEndpoints = []v4.EndpointMetadata{
-		{
-			Name:   "HealthService.Live",
-			Path:   "/live",
-			Method: "GET",
-			Body:   "",
-			Stream: false,
-		},
-		{
-			Name:   "HealthService.Ready",
-			Path:   "/ready",
-			Method: "GET",
-			Body:   "",
-			Stream: false,
-		},
-		{
-			Name:   "HealthService.Version",
-			Path:   "/version",
-			Method: "GET",
-			Body:   "",
-			Stream: false,
-		},
-	}
-)
-
 type healthServiceServer struct {
 	HealthServiceServer
 }
@@ -54,7 +27,7 @@ func (h *healthServiceServer) Version(ctx context.Context, req *codec.Frame, rsp
 	return h.HealthServiceServer.Version(ctx, req, rsp)
 }
 
-func RegisterHealthServiceServer(s server.Server, sh HealthServiceServer, opts ...options.Option) error {
+func RegisterHealthServiceServer(s server.Server, sh HealthServiceServer, opts ...server.HandlerOption) error {
 	type healthService interface {
 		Live(ctx context.Context, req *codec.Frame, rsp *codec.Frame) error
 		Ready(ctx context.Context, req *codec.Frame, rsp *codec.Frame) error
@@ -64,7 +37,7 @@ func RegisterHealthServiceServer(s server.Server, sh HealthServiceServer, opts .
 		healthService
 	}
 	h := &healthServiceServer{sh}
-	var nopts []options.Option
+	var nopts []server.HandlerOption
 	nopts = append(nopts, v4.HandlerEndpoints(HealthServiceServerEndpoints))
-	return s.Handle(&HealthService{h}, append(nopts, opts...)...)
+	return s.Handle(s.NewHandler(&HealthService{h}, append(nopts, opts...)...))
 }

handler/meter/meter.go

@@ -2,36 +2,13 @@ package meter // import "go.unistack.org/micro-server-http/v4/handler/meter"
 
 import (
 	"bytes"
-	"compress/gzip"
 	"context"
-	"io"
-	"strings"
-	"sync"
 
 	codecpb "go.unistack.org/micro-proto/v4/codec"
-	"go.unistack.org/micro/v4/logger"
-	"go.unistack.org/micro/v4/metadata"
+	"go.unistack.org/micro/v4/errors"
 	"go.unistack.org/micro/v4/meter"
-	"go.unistack.org/micro/v4/options"
 )
 
-const (
-	contentEncodingHeader = "Content-Encoding"
-	acceptEncodingHeader  = "Accept-Encoding"
-)
-
-var gzipPool = sync.Pool{
-	New: func() interface{} {
-		return gzip.NewWriter(nil)
-	},
-}
-
-var bufPool = sync.Pool{
-	New: func() interface{} {
-		return bytes.NewBuffer(nil)
-	},
-}
-
 // guard to fail early
 var _ MeterServiceServer = (*Handler)(nil)
 
@@ -42,10 +19,9 @@ type Handler struct {
 type Option func(*Options)
 
 type Options struct {
-	Meter           meter.Meter
-	Name            string
-	MeterOptions    []options.Option
-	DisableCompress bool
+	Meter        meter.Meter
+	Name         string
+	MeterOptions []meter.Option
 }
 
 func Meter(m meter.Meter) Option {
@@ -60,20 +36,14 @@ func Name(name string) Option {
 	}
 }
 
-func DisableCompress(g bool) Option {
-	return func(o *Options) {
-		o.DisableCompress = g
-	}
-}
-
-func MeterOptions(opts ...options.Option) Option {
+func MeterOptions(opts ...meter.Option) Option {
 	return func(o *Options) {
 		o.MeterOptions = append(o.MeterOptions, opts...)
 	}
 }
 
 func NewOptions(opts ...Option) Options {
-	options := Options{Meter: meter.DefaultMeter, DisableCompress: false}
+	options := Options{Meter: meter.DefaultMeter}
 	for _, o := range opts {
 		o(&options)
 	}
@@ -86,48 +56,12 @@ func NewHandler(opts ...Option) *Handler {
 }
 
 func (h *Handler) Metrics(ctx context.Context, req *codecpb.Frame, rsp *codecpb.Frame) error {
-	log, ok := logger.FromContext(ctx)
-	if !ok {
-		log = logger.DefaultLogger
-	}
-
-	buf := bufPool.Get().(*bytes.Buffer)
-	defer bufPool.Put(buf)
-	buf.Reset()
-
-	w := io.Writer(buf)
-
-	if md, ok := metadata.FromIncomingContext(ctx); gzipAccepted(md) && ok && !h.opts.DisableCompress {
-		omd, _ := metadata.FromOutgoingContext(ctx)
-		omd.Set(contentEncodingHeader, "gzip")
-		gz := gzipPool.Get().(*gzip.Writer)
-		defer gzipPool.Put(gz)
-
-		gz.Reset(w)
-		defer gz.Close()
-
-		w = gz
-		gz.Flush()
-	}
-
-	if err := h.opts.Meter.Write(w, h.opts.MeterOptions...); err != nil {
-		log.Error(ctx, "http/meter: write failed", err)
-		return nil
+	buf := bytes.NewBuffer(nil)
+	if err := h.opts.Meter.Write(buf, h.opts.MeterOptions...); err != nil {
+		return errors.InternalServerError(h.opts.Name, "%v", err)
 	}
 
 	rsp.Data = buf.Bytes()
 
 	return nil
 }
-
-// gzipAccepted returns whether the client will accept gzip-encoded content.
-func gzipAccepted(md metadata.Metadata) bool {
-	a, ok := md.Get(acceptEncodingHeader)
-	if !ok {
-		return false
-	}
-	if strings.Contains(a, "gzip") {
-		return true
-	}
-	return false
-}

handler/meter/meter_micro.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
 // versions:
-// - protoc-gen-go-micro v4.0.2
-// - protoc              v4.23.4
+// - protoc-gen-go-micro v4.0.0
+// - protoc              v3.21.12
 // source: meter/meter.proto
 
 package meter
@@ -9,11 +9,23 @@ package meter
 import (
 	context "context"
 	codec "go.unistack.org/micro-proto/v4/codec"
+	v4 "go.unistack.org/micro-server-http/v4"
 )
 
 var (
 	MeterServiceName = "MeterService"
 )
+var (
+	MeterServiceServerEndpoints = []v4.EndpointMetadata{
+		{
+			Name:   "MeterService.Metrics",
+			Path:   "/metrics",
+			Method: "GET",
+			Body:   "",
+			Stream: false,
+		},
+	}
+)
 
 type MeterServiceServer interface {
 	Metrics(ctx context.Context, req *codec.Frame, rsp *codec.Frame) error

handler/meter/meter_micro_http.pb.go

@@ -1,5 +1,5 @@
 // Code generated by protoc-gen-go-micro. DO NOT EDIT.
-// protoc-gen-go-micro version: v4.0.2
+// protoc-gen-go-micro version: v4.0.0
 // source: meter/meter.proto
 
 package meter
@@ -8,22 +8,9 @@ import (
 	context "context"
 	codec "go.unistack.org/micro-proto/v4/codec"
 	v4 "go.unistack.org/micro-server-http/v4"
-	options "go.unistack.org/micro/v4/options"
 	server "go.unistack.org/micro/v4/server"
 )
 
-var (
-	MeterServiceServerEndpoints = []v4.EndpointMetadata{
-		{
-			Name:   "MeterService.Metrics",
-			Path:   "/metrics",
-			Method: "GET",
-			Body:   "",
-			Stream: false,
-		},
-	}
-)
-
 type meterServiceServer struct {
 	MeterServiceServer
 }
@@ -32,7 +19,7 @@ func (h *meterServiceServer) Metrics(ctx context.Context, req *codec.Frame, rsp
 	return h.MeterServiceServer.Metrics(ctx, req, rsp)
 }
 
-func RegisterMeterServiceServer(s server.Server, sh MeterServiceServer, opts ...options.Option) error {
+func RegisterMeterServiceServer(s server.Server, sh MeterServiceServer, opts ...server.HandlerOption) error {
 	type meterService interface {
 		Metrics(ctx context.Context, req *codec.Frame, rsp *codec.Frame) error
 	}
@@ -40,7 +27,7 @@ func RegisterMeterServiceServer(s server.Server, sh MeterServiceServer, opts ...
 		meterService
 	}
 	h := &meterServiceServer{sh}
-	var nopts []options.Option
+	var nopts []server.HandlerOption
 	nopts = append(nopts, v4.HandlerEndpoints(MeterServiceServerEndpoints))
-	return s.Handle(&MeterService{h}, append(nopts, opts...)...)
+	return s.Handle(s.NewHandler(&MeterService{h}, append(nopts, opts...)...))
 }

handler/meter/meter_test.go

@@ -1,49 +0,0 @@
-package meter
-
-import (
-	"context"
-	"testing"
-
-	codecpb "go.unistack.org/micro-proto/v4/codec"
-)
-
-func TestHandler_Metrics(t *testing.T) {
-	type fields struct {
-		opts Options
-	}
-	type args struct {
-		ctx context.Context
-		req *codecpb.Frame
-		rsp *codecpb.Frame
-	}
-	tests := []struct {
-		name    string
-		fields  fields
-		args    args
-		wantErr bool
-	}{
-		{
-			"Test #1",
-			fields{
-				opts: NewOptions(),
-			},
-			args{
-				context.Background(),
-				&codecpb.Frame{Data: []byte("gzip")},
-				&codecpb.Frame{},
-			},
-			true,
-		},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			h := &Handler{
-				opts: tt.fields.opts,
-			}
-			if err := h.Metrics(tt.args.ctx, tt.args.req, tt.args.rsp); (err != nil) != tt.wantErr {
-				t.Errorf("Metrics() error = %v, wantErr %v", err, tt.wantErr)
-			}
-			t.Logf("RSP: %v", tt.args.rsp.Data)
-		})
-	}
-}

handler/spa/spa.go

@@ -1,19 +0,0 @@
-package spa
-
-import (
-	"io/fs"
-	"net/http"
-	"strings"
-)
-
-// Handler serve files from dir and redirect to index if file not exists
-var Handler = func(prefix string, dir fs.FS) http.HandlerFunc {
-	return func(w http.ResponseWriter, r *http.Request) {
-		f := http.StripPrefix(prefix, http.FileServer(http.FS(dir)))
-		if _, err := fs.Stat(dir, strings.TrimPrefix(r.RequestURI, prefix)); err != nil {
-			r.RequestURI = prefix
-			r.URL.Path = prefix
-		}
-		f.ServeHTTP(w, r)
-	}
-}

handler/swagger-ui/swagger-initializer.js

@@ -0,0 +1,20 @@
+window.onload = function() {
+  //<editor-fold desc="Changeable Configuration Block">
+
+  // the following lines will be replaced by docker/configurator, when it runs in a docker-container
+  window.ui = SwaggerUIBundle({
+    url: "{{ .SWAGGER }}",
+    dom_id: '#swagger-ui',
+    deepLinking: true,
+    presets: [
+      SwaggerUIBundle.presets.apis,
+      SwaggerUIStandalonePreset
+    ],
+    plugins: [
+      SwaggerUIBundle.plugins.DownloadUrl
+    ],
+    layout: "StandaloneLayout"
+  });
+
+  //</editor-fold>
+};

handler/swagger/swagger.go

@@ -1,61 +0,0 @@
-package swagger
-
-import (
-	"io/fs"
-	"net/http"
-
-	yamlcodec "go.unistack.org/micro-codec-yaml/v4"
-	rutil "go.unistack.org/micro/v4/util/reflect"
-)
-
-// Handler append to generated swagger data from dst map[string]interface{}
-var Handler = func(dst map[string]interface{}, fsys fs.FS) http.HandlerFunc {
-	c := yamlcodec.NewCodec()
-	return func(w http.ResponseWriter, r *http.Request) {
-		if r.Method != http.MethodGet {
-			w.WriteHeader(http.StatusNotFound)
-			return
-		}
-
-		path := r.URL.Path
-		if len(path) > 1 && path[0] == '/' {
-			path = path[1:]
-		}
-
-		buf, err := fs.ReadFile(fsys, path)
-		if err != nil {
-			w.WriteHeader(http.StatusInternalServerError)
-			_, _ = w.Write([]byte(err.Error()))
-			return
-		}
-
-		if dst == nil {
-			w.WriteHeader(http.StatusOK)
-			_, _ = w.Write(buf)
-			return
-		}
-
-		var src interface{}
-
-		if err = c.Unmarshal(buf, src); err != nil {
-			w.WriteHeader(http.StatusInternalServerError)
-			_, _ = w.Write([]byte(err.Error()))
-			return
-		}
-
-		if err = rutil.Merge(src, dst); err != nil {
-			w.WriteHeader(http.StatusInternalServerError)
-			_, _ = w.Write([]byte(err.Error()))
-			return
-		}
-
-		if buf, err = c.Marshal(src); err != nil {
-			w.WriteHeader(http.StatusInternalServerError)
-			_, _ = w.Write([]byte(err.Error()))
-			return
-		}
-
-		w.WriteHeader(http.StatusOK)
-		_, _ = w.Write(buf)
-	}
-}

http.go

@@ -9,27 +9,29 @@ import (
 	"net"
 	"net/http"
 	"reflect"
+	"sort"
 	"strings"
 	"sync"
 	"time"
 
+	"go.unistack.org/micro/v4/broker"
 	"go.unistack.org/micro/v4/codec"
 	"go.unistack.org/micro/v4/logger"
-	"go.unistack.org/micro/v4/options"
 	"go.unistack.org/micro/v4/register"
 	"go.unistack.org/micro/v4/server"
 	rhttp "go.unistack.org/micro/v4/util/http"
 	"golang.org/x/net/netutil"
 )
 
-var _ server.Server = (*Server)(nil)
+var _ server.Server = &httpServer{}
 
-type Server struct {
-	hd           interface{}
+type httpServer struct {
+	hd           server.Handler
 	rsvc         *register.Service
-	handlers     map[string]interface{}
+	handlers     map[string]server.Handler
 	exit         chan chan error
-	errorHandler func(context.Context, interface{}, http.ResponseWriter, *http.Request, error, int)
+	subscribers  map[*httpSubscriber][]broker.Subscriber
+	errorHandler func(context.Context, server.Handler, http.ResponseWriter, *http.Request, error, int)
 	pathHandlers *rhttp.Trie
 	opts         server.Options
 	registerRPC  bool
@@ -38,7 +40,7 @@ type Server struct {
 	init       bool
 }
 
-func (h *Server) newCodec(ct string) (codec.Codec, error) {
+func (h *httpServer) newCodec(ct string) (codec.Codec, error) {
 	if idx := strings.IndexRune(ct, ';'); idx >= 0 {
 		ct = ct[:idx]
 	}
@@ -51,14 +53,14 @@ func (h *Server) newCodec(ct string) (codec.Codec, error) {
 	return nil, codec.ErrUnknownContentType
 }
 
-func (h *Server) Options() server.Options {
+func (h *httpServer) Options() server.Options {
 	h.Lock()
 	opts := h.opts
 	h.Unlock()
 	return opts
 }
 
-func (h *Server) Init(opts ...options.Option) error {
+func (h *httpServer) Init(opts ...server.Option) error {
 	if len(opts) == 0 && h.init {
 		return nil
 	}
@@ -68,11 +70,11 @@ func (h *Server) Init(opts ...options.Option) error {
 	for _, o := range opts {
 		o(&h.opts)
 	}
-	if fn, ok := h.opts.Context.Value(errorHandlerKey{}).(func(ctx context.Context, s interface{}, w http.ResponseWriter, r *http.Request, err error, status int)); ok && fn != nil {
+	if fn, ok := h.opts.Context.Value(errorHandlerKey{}).(func(ctx context.Context, s server.Handler, w http.ResponseWriter, r *http.Request, err error, status int)); ok && fn != nil {
 		h.errorHandler = fn
 	}
 	if h.handlers == nil {
-		h.handlers = make(map[string]interface{})
+		h.handlers = make(map[string]server.Handler)
 	}
 	if h.pathHandlers == nil {
 		h.pathHandlers = rhttp.NewTrie()
@@ -99,6 +101,10 @@ func (h *Server) Init(opts ...options.Option) error {
 		h.RUnlock()
 		return err
 	}
+	if err := h.opts.Broker.Init(); err != nil {
+		h.RUnlock()
+		return err
+	}
 	if err := h.opts.Tracer.Init(); err != nil {
 		h.RUnlock()
 		return err
@@ -111,6 +117,10 @@ func (h *Server) Init(opts ...options.Option) error {
 		h.RUnlock()
 		return err
 	}
+	if err := h.opts.Transport.Init(); err != nil {
+		h.RUnlock()
+		return err
+	}
 	h.RUnlock()
 
 	h.Lock()
@@ -120,24 +130,12 @@ func (h *Server) Init(opts ...options.Option) error {
 	return nil
 }
 
-func (h *Server) Handle(handler interface{}, opts ...options.Option) error {
-	options := server.NewHandleOptions(opts...)
-	var endpointMetadata []EndpointMetadata
-
-	if v, ok := options.Context.Value(handlerEndpointsKey{}).([]EndpointMetadata); ok {
-		endpointMetadata = v
-	}
-
+func (h *httpServer) Handle(handler server.Handler) error {
 	// passed unknown handler
 	hdlr, ok := handler.(*httpHandler)
 	if !ok {
 		h.Lock()
-		if h.handlers == nil {
-			h.handlers = make(map[string]interface{})
-		}
-		for _, v := range endpointMetadata {
-			h.handlers[v.Name] = h.newHTTPHandler(handler, opts...)
-		}
+		h.hd = handler
 		h.Unlock()
 		return nil
 	}
@@ -150,11 +148,19 @@ func (h *Server) Handle(handler interface{}, opts ...options.Option) error {
 		return nil
 	}
 
+	// passed micro compat handler
+	h.Lock()
+	if h.handlers == nil {
+		h.handlers = make(map[string]server.Handler)
+	}
+	h.handlers[handler.Name()] = handler
+	h.Unlock()
+
 	return nil
 }
 
-func (h *Server) newHTTPHandler(handler interface{}, opts ...options.Option) *httpHandler {
-	options := server.NewHandleOptions(opts...)
+func (h *httpServer) NewHandler(handler interface{}, opts ...server.HandlerOption) server.Handler {
+	options := server.NewHandlerOptions(opts...)
 
 	eps := make([]*register.Endpoint, 0, len(options.Metadata))
 	for name, metadata := range options.Metadata {
@@ -198,16 +204,16 @@ func (h *Server) newHTTPHandler(handler interface{}, opts ...options.Option) *ht
 		}
 
 		if method.Name == "" && h.opts.Logger.V(logger.ErrorLevel) {
-			h.opts.Logger.Error(h.opts.Context, fmt.Sprintf("nil method for %s", mname))
+			h.opts.Logger.Errorf(h.opts.Context, "nil method for %s", mname)
 			continue
 		}
 
 		mtype, err := prepareEndpoint(method)
 		if err != nil && h.opts.Logger.V(logger.ErrorLevel) {
-			h.opts.Logger.Error(h.opts.Context, fmt.Sprintf("%v", err))
+			h.opts.Logger.Errorf(h.opts.Context, "%v", err)
 			continue
 		} else if mtype == nil {
-			h.opts.Logger.Error(h.opts.Context, fmt.Sprintf("nil mtype for %s", mname))
+			h.opts.Logger.Errorf(h.opts.Context, "nil mtype for %s", mname)
 			continue
 		}
 
@@ -218,13 +224,13 @@ func (h *Server) newHTTPHandler(handler interface{}, opts ...options.Option) *ht
 		hdlr.name = name
 
 		if err := hdlr.handlers.Insert([]string{md["Method"]}, md["Path"], pth); err != nil {
-			h.opts.Logger.Error(h.opts.Context, fmt.Sprintf("cant add handler for %s %s", md["Method"][0], md["Path"][0]))
+			h.opts.Logger.Errorf(h.opts.Context, "cant add handler for %s %s", md["Method"], md["Path"])
 		}
 
 		if h.registerRPC {
-			h.opts.Logger.Info(h.opts.Context, fmt.Sprintf("register rpc handler for http.MethodPost %s /%s", hn, hn))
+			h.opts.Logger.Infof(h.opts.Context, "register rpc handler for http.MethodPost %s /%s", hn, hn)
 			if err := hdlr.handlers.Insert([]string{http.MethodPost}, "/"+hn, pth); err != nil {
-				h.opts.Logger.Error(h.opts.Context, fmt.Sprintf("cant add rpc handler for http.MethodPost %s /%s", hn, hn))
+				h.opts.Logger.Errorf(h.opts.Context, "cant add rpc handler for http.MethodPost %s /%s", hn, hn)
 			}
 		}
 	}
@@ -248,16 +254,16 @@ func (h *Server) newHTTPHandler(handler interface{}, opts ...options.Option) *ht
 		}
 
 		if method.Name == "" && h.opts.Logger.V(logger.ErrorLevel) {
-			h.opts.Logger.Error(h.opts.Context, fmt.Sprintf("nil method for %s", mname))
+			h.opts.Logger.Errorf(h.opts.Context, "nil method for %s", mname)
 			continue
 		}
 
 		mtype, err := prepareEndpoint(method)
 		if err != nil && h.opts.Logger.V(logger.ErrorLevel) {
-			h.opts.Logger.Error(h.opts.Context, fmt.Sprintf("%v", err))
+			h.opts.Logger.Errorf(h.opts.Context, "%v", err)
 			continue
 		} else if mtype == nil {
-			h.opts.Logger.Error(h.opts.Context, fmt.Sprintf("nil mtype for %s", mname))
+			h.opts.Logger.Errorf(h.opts.Context, "nil mtype for %s", mname)
 			continue
 		}
 
@@ -268,13 +274,13 @@ func (h *Server) newHTTPHandler(handler interface{}, opts ...options.Option) *ht
 		hdlr.name = name
 
 		if err := hdlr.handlers.Insert([]string{md.Method}, md.Path, pth); err != nil {
-			h.opts.Logger.Error(h.opts.Context, fmt.Sprintf("cant add handler for %s %s", md.Method, md.Path))
+			h.opts.Logger.Errorf(h.opts.Context, "cant add handler for %s %s", md.Method, md.Path)
 		}
 
 		if h.registerRPC {
-			h.opts.Logger.Info(h.opts.Context, fmt.Sprintf("register rpc handler for http.MethodPost %s /%s", hn, hn))
+			h.opts.Logger.Infof(h.opts.Context, "register rpc handler for http.MethodPost %s /%s", hn, hn)
 			if err := hdlr.handlers.Insert([]string{http.MethodPost}, "/"+hn, pth); err != nil {
-				h.opts.Logger.Error(h.opts.Context, fmt.Sprintf("cant add rpc handler for http.MethodPost %s /%s", hn, hn))
+				h.opts.Logger.Errorf(h.opts.Context, "cant add rpc handler for http.MethodPost %s /%s", hn, hn)
 			}
 		}
 	}
@@ -282,15 +288,40 @@ func (h *Server) newHTTPHandler(handler interface{}, opts ...options.Option) *ht
 	return hdlr
 }
 
-func (h *Server) Register() error {
+func (h *httpServer) NewSubscriber(topic string, handler interface{}, opts ...server.SubscriberOption) server.Subscriber {
+	return newSubscriber(topic, handler, opts...)
+}
+
+func (h *httpServer) Subscribe(sb server.Subscriber) error {
+	sub, ok := sb.(*httpSubscriber)
+	if !ok {
+		return fmt.Errorf("invalid subscriber: expected *httpSubscriber")
+	}
+	if len(sub.handlers) == 0 {
+		return fmt.Errorf("invalid subscriber: no handler functions")
+	}
+
+	if err := server.ValidateSubscriber(sb); err != nil {
+		return err
+	}
+
+	h.RLock()
+	_, ok = h.subscribers[sub]
+	h.RUnlock()
+	if ok {
+		return fmt.Errorf("subscriber %v already exists", h)
+	}
+	h.Lock()
+	h.subscribers[sub] = nil
+	h.Unlock()
+	return nil
+}
+
+func (h *httpServer) Register() error {
 	var eps []*register.Endpoint
 	h.RLock()
 	for _, hdlr := range h.handlers {
-		hd, ok := hdlr.(*httpHandler)
-		if !ok {
-			continue
-		}
-		eps = append(eps, hd.Endpoints()...)
+		eps = append(eps, hdlr.Endpoints()...)
 	}
 	rsvc := h.rsvc
 	config := h.opts
@@ -308,16 +339,31 @@ func (h *Server) Register() error {
 	if err != nil {
 		return err
 	}
-	service.Nodes[0].Metadata.Set("protocol", "http")
+	service.Nodes[0].Metadata["protocol"] = "http"
 	service.Endpoints = eps
 
+	h.Lock()
+	subscriberList := make([]*httpSubscriber, 0, len(h.subscribers))
+	for e := range h.subscribers {
+		// Only advertise non internal subscribers
+		subscriberList = append(subscriberList, e)
+	}
+	sort.Slice(subscriberList, func(i, j int) bool {
+		return subscriberList[i].topic > subscriberList[j].topic
+	})
+
+	for _, e := range subscriberList {
+		service.Endpoints = append(service.Endpoints, e.Endpoints()...)
+	}
+	h.Unlock()
+
 	h.RLock()
 	registered := h.registered
 	h.RUnlock()
 
 	if !registered {
 		if config.Logger.V(logger.InfoLevel) {
-			config.Logger.Info(config.Context, fmt.Sprintf("Register [%s] Registering node: %s", config.Register.String(), service.Nodes[0].ID))
+			config.Logger.Infof(config.Context, "Register [%s] Registering node: %s", config.Register.String(), service.Nodes[0].ID)
 		}
 	}
 
@@ -332,6 +378,29 @@ func (h *Server) Register() error {
 	}
 
 	h.Lock()
+	for sb := range h.subscribers {
+		handler := h.createSubHandler(sb, config)
+		var opts []broker.SubscribeOption
+		if queue := sb.Options().Queue; len(queue) > 0 {
+			opts = append(opts, broker.SubscribeGroup(queue))
+		}
+
+		subCtx := config.Context
+		if cx := sb.Options().Context; cx != nil {
+			subCtx = cx
+		}
+		opts = append(opts, broker.SubscribeContext(subCtx))
+		opts = append(opts, broker.SubscribeAutoAck(sb.Options().AutoAck))
+		opts = append(opts, broker.SubscribeBodyOnly(sb.Options().BodyOnly))
+
+		sub, err := config.Broker.Subscribe(subCtx, sb.Topic(), handler, opts...)
+		if err != nil {
+			h.Unlock()
+			return err
+		}
+		h.subscribers[sb] = []broker.Subscriber{sub}
+	}
+
 	h.registered = true
 	h.rsvc = service
 	h.Unlock()
@@ -339,7 +408,7 @@ func (h *Server) Register() error {
 	return nil
 }
 
-func (h *Server) Deregister() error {
+func (h *httpServer) Deregister() error {
 	h.RLock()
 	config := h.opts
 	h.RUnlock()
@@ -350,7 +419,7 @@ func (h *Server) Deregister() error {
 	}
 
 	if config.Logger.V(logger.InfoLevel) {
-		config.Logger.Info(config.Context, fmt.Sprintf("Deregistering node: %s", service.Nodes[0].ID))
+		config.Logger.Infof(config.Context, "Deregistering node: %s", service.Nodes[0].ID)
 	}
 
 	if err := server.DefaultDeregisterFunc(service, config); err != nil {
@@ -366,11 +435,28 @@ func (h *Server) Deregister() error {
 	}
 
 	h.registered = false
+
+	subCtx := h.opts.Context
+	for sb, subs := range h.subscribers {
+		if cx := sb.Options().Context; cx != nil {
+			subCtx = cx
+		}
+
+		for _, sub := range subs {
+			config.Logger.Infof(config.Context, "Unsubscribing from topic: %s", sub.Topic())
+			if err := sub.Unsubscribe(subCtx); err != nil {
+				h.Unlock()
+				config.Logger.Errorf(config.Context, "failed to unsubscribe topic: %s, error: %v", sb.Topic(), err)
+				return err
+			}
+		}
+		h.subscribers[sb] = nil
+	}
 	h.Unlock()
 	return nil
 }
 
-func (h *Server) Start() error {
+func (h *httpServer) Start() error {
 	h.RLock()
 	config := h.opts
 	h.RUnlock()
@@ -400,7 +486,7 @@ func (h *Server) Start() error {
 	}
 
 	if config.Logger.V(logger.InfoLevel) {
-		config.Logger.Info(config.Context, fmt.Sprintf("Listening on %s", ts.Addr().String()))
+		config.Logger.Infof(config.Context, "Listening on %s", ts.Addr().String())
 	}
 
 	h.Lock()
@@ -408,12 +494,13 @@ func (h *Server) Start() error {
 	h.Unlock()
 
 	var handler http.Handler
+	var srvFunc func(net.Listener) error
 
 	// nolint: nestif
 	if h.opts.Context != nil {
 		if hs, ok := h.opts.Context.Value(serverKey{}).(*http.Server); ok && hs != nil {
 			if hs.Handler == nil && h.hd != nil {
-				if hdlr, ok := h.hd.(http.Handler); ok {
+				if hdlr, ok := h.hd.Handler().(http.Handler); ok {
 					hs.Handler = hdlr
 					handler = hs.Handler
 				}
@@ -429,7 +516,7 @@ func (h *Server) Start() error {
 	case len(h.handlers) > 0 && h.hd != nil:
 		handler = h
 	case handler == nil && h.hd != nil:
-		if hdlr, ok := h.hd.(http.Handler); ok {
+		if hdlr, ok := h.hd.Handler().(http.Handler); ok {
 			handler = hdlr
 		}
 	}
@@ -438,9 +525,13 @@ func (h *Server) Start() error {
 		return fmt.Errorf("cant process with nil handler")
 	}
 
+	if err := config.Broker.Connect(h.opts.Context); err != nil {
+		return err
+	}
+
 	if err := config.RegisterCheck(h.opts.Context); err != nil {
 		if config.Logger.V(logger.ErrorLevel) {
-			config.Logger.Error(config.Context, fmt.Sprintf("Server %s-%s register check error: %s", config.Name, config.ID, err))
+			config.Logger.Errorf(config.Context, "Server %s-%s register check error: %s", config.Name, config.ID, err)
 		}
 	} else {
 		if err = h.Register(); err != nil {
@@ -450,7 +541,6 @@ func (h *Server) Start() error {
 
 	fn := handler
 
-	var hs *http.Server
 	if h.opts.Context != nil {
 		if mwf, ok := h.opts.Context.Value(middlewareKey{}).([]func(http.Handler) http.Handler); ok && len(mwf) > 0 {
 			// wrap the handler func
@@ -458,19 +548,25 @@ func (h *Server) Start() error {
 				fn = mwf[i-1](fn)
 			}
 		}
-		var ok bool
-		if hs, ok = h.opts.Context.Value(serverKey{}).(*http.Server); ok && hs != nil {
+		if hs, ok := h.opts.Context.Value(serverKey{}).(*http.Server); ok && hs != nil {
 			hs.Handler = fn
-		} else {
-			hs = &http.Server{Handler: fn}
+			srvFunc = hs.Serve
 		}
 	}
 
-	go func() {
-		if cerr := hs.Serve(ts); cerr != nil && !errors.Is(cerr, net.ErrClosed) {
-			h.opts.Logger.Error(h.opts.Context, cerr.Error())
-		}
-	}()
+	if srvFunc != nil {
+		go func() {
+			if cerr := srvFunc(ts); cerr != nil && !errors.Is(cerr, net.ErrClosed) {
+				h.opts.Logger.Error(h.opts.Context, cerr)
+			}
+		}()
+	} else {
+		go func() {
+			if cerr := http.Serve(ts, fn); cerr != nil && !errors.Is(cerr, net.ErrClosed) {
+				h.opts.Logger.Error(h.opts.Context, cerr)
+			}
+		}()
+	}
 
 	go func() {
 		t := new(time.Ticker)
@@ -496,28 +592,28 @@ func (h *Server) Start() error {
 				// nolint: nestif
 				if rerr != nil && registered {
 					if config.Logger.V(logger.ErrorLevel) {
-						config.Logger.Error(config.Context, fmt.Sprintf("Server %s-%s register check error: %s, deregister it", config.Name, config.ID, rerr))
+						config.Logger.Errorf(config.Context, "Server %s-%s register check error: %s, deregister it", config.Name, config.ID, rerr)
 					}
 					// deregister self in case of error
 					if err := h.Deregister(); err != nil {
 						if config.Logger.V(logger.ErrorLevel) {
-							config.Logger.Error(config.Context, fmt.Sprintf("Server %s-%s deregister error: %s", config.Name, config.ID, err))
+							config.Logger.Errorf(config.Context, "Server %s-%s deregister error: %s", config.Name, config.ID, err)
 						}
 					}
 				} else if rerr != nil && !registered {
 					if config.Logger.V(logger.ErrorLevel) {
-						config.Logger.Error(config.Context, fmt.Sprintf("Server %s-%s register check error: %s", config.Name, config.ID, rerr))
+						config.Logger.Errorf(config.Context, "Server %s-%s register check error: %s", config.Name, config.ID, rerr)
 					}
 					continue
 				}
 				if err := h.Register(); err != nil {
 					if config.Logger.V(logger.ErrorLevel) {
-						config.Logger.Error(config.Context, fmt.Sprintf("Server %s-%s register error: %s", config.Name, config.ID, err))
+						config.Logger.Errorf(config.Context, "Server %s-%s register error: %s", config.Name, config.ID, err)
 					}
 				}
 
 				if err := h.Register(); err != nil {
-					config.Logger.Error(config.Context, fmt.Sprintf("Server register error: %s", err))
+					config.Logger.Errorf(config.Context, "Server register error: %s", err)
 				}
 			// wait for exit
 			case ch = <-h.exit:
@@ -527,46 +623,43 @@ func (h *Server) Start() error {
 
 		// deregister
 		if err := h.Deregister(); err != nil {
-			config.Logger.Error(config.Context, fmt.Sprintf("Server deregister error: %s", err))
+			config.Logger.Errorf(config.Context, "Server deregister error: %s", err)
 		}
 
-		ctx, cancel := context.WithTimeout(context.Background(), h.opts.GracefulTimeout)
-		defer cancel()
-
-		err := hs.Shutdown(ctx)
-		if err != nil {
-			err = hs.Close()
+		if err := config.Broker.Disconnect(config.Context); err != nil {
+			config.Logger.Errorf(config.Context, "Broker disconnect error: %s", err)
 		}
 
-		ch <- err
+		ch <- ts.Close()
 	}()
 
 	return nil
 }
 
-func (h *Server) Stop() error {
+func (h *httpServer) Stop() error {
 	ch := make(chan error)
 	h.exit <- ch
 	return <-ch
 }
 
-func (h *Server) String() string {
+func (h *httpServer) String() string {
 	return "http"
 }
 
-func (h *Server) Name() string {
+func (h *httpServer) Name() string {
 	return h.opts.Name
 }
 
-func NewServer(opts ...options.Option) *Server {
+func NewServer(opts ...server.Option) *httpServer {
 	options := server.NewOptions(opts...)
 	eh := DefaultErrorHandler
 	if v, ok := options.Context.Value(errorHandlerKey{}).(errorHandler); ok && v != nil {
 		eh = v
 	}
-	return &Server{
+	return &httpServer{
 		opts:         options,
 		exit:         make(chan chan error),
+		subscribers:  make(map[*httpSubscriber][]broker.Subscriber),
 		errorHandler: eh,
 		pathHandlers: rhttp.NewTrie(),
 	}

options.go

@@ -5,7 +5,7 @@ import (
 	"fmt"
 	"net/http"
 
-	"go.unistack.org/micro/v4/options"
+	"go.unistack.org/micro/v4/server"
 )
 
 // SetError pass error to caller
@@ -79,24 +79,24 @@ func GetRspCode(ctx context.Context) int {
 type middlewareKey struct{}
 
 // Middleware passes http middlewares
-func Middleware(mw ...func(http.Handler) http.Handler) options.Option {
-	return options.ContextOption(middlewareKey{}, mw)
+func Middleware(mw ...func(http.Handler) http.Handler) server.Option {
+	return server.SetOption(middlewareKey{}, mw)
 }
 
 type serverKey struct{}
 
-// HTTPServer provide ability to pass *http.Server
-func HTTPServer(hs *http.Server) options.Option {
-	return options.ContextOption(serverKey{}, hs)
+// Server provide ability to pass *http.Server
+func Server(hs *http.Server) server.Option {
+	return server.SetOption(serverKey{}, hs)
 }
 
-type errorHandler func(ctx context.Context, s interface{}, w http.ResponseWriter, r *http.Request, err error, status int)
+type errorHandler func(ctx context.Context, s server.Handler, w http.ResponseWriter, r *http.Request, err error, status int)
 
 type errorHandlerKey struct{}
 
 // ErrorHandler specifies handler for errors
-func ErrorHandler(fn errorHandler) options.Option {
-	return options.ContextOption(errorHandlerKey{}, fn)
+func ErrorHandler(fn errorHandler) server.Option {
+	return server.SetOption(errorHandlerKey{}, fn)
 }
 
 type (
@@ -107,18 +107,12 @@ type (
 )
 
 // PathHandler specifies http handler for path regexp
-func PathHandler(method, path string, handler http.HandlerFunc) options.Option {
-	return func(src interface{}) error {
-		vctx, err := options.Get(src, ".Context")
-		if err != nil {
-			return err
+func PathHandler(method, path string, handler http.HandlerFunc) server.Option {
+	return func(o *server.Options) {
+		if o.Context == nil {
+			o.Context = context.Background()
 		}
-		ctx, ok := vctx.(context.Context)
-		if !ok {
-			return fmt.Errorf("invalid option")
-		}
-
-		v, ok := ctx.Value(pathHandlerKey{}).(*pathHandlerVal)
+		v, ok := o.Context.Value(pathHandlerKey{}).(*pathHandlerVal)
 		if !ok {
 			v = &pathHandlerVal{h: make(map[string]map[string]http.HandlerFunc)}
 		}
@@ -127,17 +121,16 @@ func PathHandler(method, path string, handler http.HandlerFunc) options.Option {
 			m = make(map[string]http.HandlerFunc)
 			v.h[method] = m
 		}
-		ctx = context.WithValue(ctx, pathHandlerKey{}, v)
 		m[path] = handler
-		return options.Set(src, ctx, ".Context")
+		o.Context = context.WithValue(o.Context, pathHandlerKey{}, v)
 	}
 }
 
 type registerRPCHandlerKey struct{}
 
 // RegisterRPCHandler registers compatibility endpoints with /ServiceName.ServiceEndpoint method POST
-func RegisterRPCHandler(b bool) options.Option {
-	return options.ContextOption(registerRPCHandlerKey{}, b)
+func RegisterRPCHandler(b bool) server.Option {
+	return server.SetOption(registerRPCHandlerKey{}, b)
 }
 
 type handlerEndpointsKey struct{}
@@ -150,8 +143,8 @@ type EndpointMetadata struct {
 	Stream bool
 }
 
-func HandlerEndpoints(md []EndpointMetadata) options.Option {
-	return options.ContextOption(handlerEndpointsKey{}, md)
+func HandlerEndpoints(md []EndpointMetadata) server.HandlerOption {
+	return server.SetHandlerOption(handlerEndpointsKey{}, md)
 }
 
 type handlerOptions struct {

request.go

@@ -8,7 +8,10 @@ import (
 	"go.unistack.org/micro/v4/server"
 )
 
-var _ server.Request = &rpcRequest{}
+var (
+	_ server.Request = &rpcRequest{}
+	_ server.Message = &rpcMessage{}
+)
 
 type rpcRequest struct {
 	rw          io.ReadWriter
@@ -22,6 +25,14 @@ type rpcRequest struct {
 	stream      bool
 }
 
+type rpcMessage struct {
+	payload     interface{}
+	codec       codec.Codec
+	header      metadata.Metadata
+	topic       string
+	contentType string
+}
+
 func (r *rpcRequest) ContentType() string {
 	return r.contentType
 }
@@ -61,3 +72,23 @@ func (r *rpcRequest) Stream() bool {
 func (r *rpcRequest) Body() interface{} {
 	return r.payload
 }
+
+func (r *rpcMessage) ContentType() string {
+	return r.contentType
+}
+
+func (r *rpcMessage) Topic() string {
+	return r.topic
+}
+
+func (r *rpcMessage) Body() interface{} {
+	return r.payload
+}
+
+func (r *rpcMessage) Header() metadata.Metadata {
+	return r.header
+}
+
+func (r *rpcMessage) Codec() codec.Codec {
+	return r.codec
+}

server.go

@@ -10,8 +10,6 @@ import (
 	"go.unistack.org/micro/v4/server"
 )
 
-var typeOfError = reflect.TypeOf((*error)(nil)).Elem()
-
 type methodType struct {
 	ArgType     reflect.Type
 	ReplyType   reflect.Type

subscriber.go

@@ -0,0 +1,208 @@
+package http
+
+import (
+	"bytes"
+	"context"
+	"fmt"
+	"reflect"
+	"strings"
+
+	"go.unistack.org/micro/v4/broker"
+	"go.unistack.org/micro/v4/codec"
+	"go.unistack.org/micro/v4/metadata"
+	"go.unistack.org/micro/v4/register"
+	"go.unistack.org/micro/v4/server"
+)
+
+var typeOfError = reflect.TypeOf((*error)(nil)).Elem()
+
+type handler struct {
+	reqType reflect.Type
+	ctxType reflect.Type
+	method  reflect.Value
+}
+
+type httpSubscriber struct {
+	topic      string
+	rcvr       reflect.Value
+	typ        reflect.Type
+	subscriber interface{}
+	handlers   []*handler
+	endpoints  []*register.Endpoint
+	opts       server.SubscriberOptions
+}
+
+func newSubscriber(topic string, sub interface{}, opts ...server.SubscriberOption) server.Subscriber {
+	options := server.NewSubscriberOptions(opts...)
+
+	var endpoints []*register.Endpoint
+	var handlers []*handler
+
+	if typ := reflect.TypeOf(sub); typ.Kind() == reflect.Func {
+		h := &handler{
+			method: reflect.ValueOf(sub),
+		}
+
+		switch typ.NumIn() {
+		case 1:
+			h.reqType = typ.In(0)
+		case 2:
+			h.ctxType = typ.In(0)
+			h.reqType = typ.In(1)
+		}
+
+		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{
+				method: method.Func,
+			}
+
+			switch method.Type.NumIn() {
+			case 2:
+				h.reqType = method.Type.In(1)
+			case 3:
+				h.ctxType = method.Type.In(1)
+				h.reqType = method.Type.In(2)
+			}
+
+			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)
+		}
+	}
+
+	return &httpSubscriber{
+		rcvr:       reflect.ValueOf(sub),
+		typ:        reflect.TypeOf(sub),
+		topic:      topic,
+		subscriber: sub,
+		handlers:   handlers,
+		endpoints:  endpoints,
+		opts:       options,
+	}
+}
+
+func (s *httpServer) createSubHandler(sb *httpSubscriber, opts server.Options) broker.Handler {
+	return func(p broker.Event) error {
+		msg := p.Message()
+		ct := msg.Header["Content-Type"]
+		cf, err := s.newCodec(ct)
+		if err != nil {
+			return err
+		}
+
+		hdr := metadata.Copy(msg.Header)
+		delete(hdr, "Content-Type")
+		ctx := metadata.NewIncomingContext(context.Background(), hdr)
+
+		results := make(chan error, len(sb.handlers))
+
+		for i := 0; i < len(sb.handlers); i++ {
+			handler := sb.handlers[i]
+
+			var isVal bool
+			var req reflect.Value
+
+			if handler.reqType.Kind() == reflect.Ptr {
+				req = reflect.New(handler.reqType.Elem())
+			} else {
+				req = reflect.New(handler.reqType)
+				isVal = true
+			}
+			if isVal {
+				req = req.Elem()
+			}
+
+			buf := bytes.NewBuffer(msg.Body)
+
+			if err := cf.ReadHeader(buf, &codec.Message{}, codec.Event); err != nil {
+				return err
+			}
+
+			if err := cf.ReadBody(buf, req.Interface()); err != nil {
+				return err
+			}
+
+			fn := func(ctx context.Context, msg server.Message) error {
+				var vals []reflect.Value
+				if sb.typ.Kind() != reflect.Func {
+					vals = append(vals, sb.rcvr)
+				}
+				if handler.ctxType != nil {
+					vals = append(vals, reflect.ValueOf(ctx))
+				}
+
+				vals = append(vals, reflect.ValueOf(msg.Body()))
+
+				returnValues := handler.method.Call(vals)
+				if err := returnValues[0].Interface(); err != nil {
+					return err.(error)
+				}
+				return nil
+			}
+
+			for i := len(opts.SubWrappers); i > 0; i-- {
+				fn = opts.SubWrappers[i-1](fn)
+			}
+
+			go func() {
+				results <- fn(ctx, &httpMessage{
+					topic:       sb.topic,
+					contentType: ct,
+					payload:     req.Interface(),
+					header:      msg.Header,
+					codec:       cf,
+				})
+			}()
+		}
+
+		var errors []string
+
+		for i := 0; i < len(sb.handlers); i++ {
+			if err := <-results; err != nil {
+				errors = append(errors, err.Error())
+			}
+		}
+
+		if len(errors) > 0 {
+			return fmt.Errorf("subscriber error: %s", strings.Join(errors, "\n"))
+		}
+
+		return nil
+	}
+}
+
+func (s *httpSubscriber) Topic() string {
+	return s.topic
+}
+
+func (s *httpSubscriber) Subscriber() interface{} {
+	return s.subscriber
+}
+
+func (s *httpSubscriber) Endpoints() []*register.Endpoint {
+	return s.endpoints
+}
+
+func (s *httpSubscriber) Options() server.SubscriberOptions {
+	return s.opts
+}

tools.go

@@ -1,8 +0,0 @@
-//go:build tools
-
-package http
-
-import (
-	_ "go.unistack.org/micro-proto/v4"
-	_ "go.unistack.org/protoc-gen-go-micro/v4"
-)

util.go

@@ -31,13 +31,15 @@ func FillRequest(ctx context.Context, req interface{}, opts ...FillRequestOption
 		}
 	}
 
-	cookies := md["Cookie"]
+	cookies := strings.Split(md["Cookie"], ";")
 	cmd := make(map[string]string, len(cookies))
-	kv := strings.Split(cookies, "=")
-	if len(kv) != 2 {
-		return nil
+	for _, cookie := range cookies {
+		kv := strings.Split(cookie, "=")
+		if len(kv) != 2 {
+			continue
+		}
+		cmd[strings.TrimSpace(kv[0])] = strings.TrimSpace(kv[1])
 	}
-	cmd[strings.TrimSpace(kv[0])] = strings.TrimSpace(kv[1])
 	for idx := 0; idx < len(options.cookies)/2; idx += 2 {
 		k := http.CanonicalHeaderKey(options.cookies[idx])
 		v, ok := cmd[k]