add endpoint context (#979)

transport/grpc/client.go

@@ -102,8 +102,8 @@ func dial(ctx context.Context, insecure bool, opts ...ClientOption) (*grpc.Clien
 
 func unaryClientInterceptor(m middleware.Middleware, timeout time.Duration) grpc.UnaryClientInterceptor {
 	return func(ctx context.Context, method string, req, reply interface{}, cc *grpc.ClientConn, invoker grpc.UnaryInvoker, opts ...grpc.CallOption) error {
-		ctx = transport.NewContext(ctx, transport.Transport{Kind: transport.KindGRPC})
-		ctx = NewClientContext(ctx, ClientInfo{FullMethod: method, Target: cc.Target()})
+		ctx = transport.NewContext(ctx, transport.Transport{Kind: transport.KindGRPC, Endpoint: cc.Target()})
+		ctx = NewClientContext(ctx, ClientInfo{FullMethod: method})
 		if timeout > 0 {
 			var cancel context.CancelFunc
 			ctx, cancel = context.WithTimeout(ctx, timeout)

transport/grpc/context.go

@@ -2,7 +2,6 @@ package grpc
 
 import (
 	"context"
-	"net/url"
 )
 
 // ServerInfo represent gRPC server information.
@@ -11,8 +10,6 @@ type ServerInfo struct {
 	Server interface{}
 	// FullMethod is the full RPC method string, i.e., /package.service/method.
 	FullMethod string
-	// Endpoint is a real address to registry endpoint.
-	Endpoint *url.URL
 }
 
 type serverKey struct{}
@@ -32,7 +29,6 @@ func FromServerContext(ctx context.Context) (info ServerInfo, ok bool) {
 type ClientInfo struct {
 	// FullMethod is the full RPC method string, i.e., /package.service/method.
 	FullMethod string
-	Target     string
 }
 
 type clientKey struct{}

transport/grpc/server.go

@@ -166,8 +166,8 @@ func (s *Server) unaryServerInterceptor() grpc.UnaryServerInterceptor {
 	return func(ctx context.Context, req interface{}, info *grpc.UnaryServerInfo, handler grpc.UnaryHandler) (interface{}, error) {
 		ctx, cancel := ic.Merge(ctx, s.ctx)
 		defer cancel()
-		ctx = transport.NewContext(ctx, transport.Transport{Kind: transport.KindGRPC})
-		ctx = NewServerContext(ctx, ServerInfo{Server: info.Server, FullMethod: info.FullMethod, Endpoint: s.endpoint})
+		ctx = transport.NewContext(ctx, transport.Transport{Kind: transport.KindGRPC, Endpoint: s.endpoint.String()})
+		ctx = NewServerContext(ctx, ServerInfo{Server: info.Server, FullMethod: info.FullMethod})
 		if s.timeout > 0 {
 			var cancel context.CancelFunc
 			ctx, cancel = context.WithTimeout(ctx, s.timeout)

transport/http/client.go

@@ -209,14 +209,12 @@ func (client *Client) Invoke(ctx context.Context, path string, args interface{},
 		reqBody     io.Reader
 		contentType string
 	)
-
 	c := defaultCallInfo()
 	for _, o := range opts {
 		if err := o.before(&c); err != nil {
 			return err
 		}
 	}
-
 	if args != nil {
 		var (
 			body []byte
@@ -239,14 +237,8 @@ func (client *Client) Invoke(ctx context.Context, path string, args interface{},
 	if client.userAgent != "" {
 		req.Header.Set("User-Agent", client.userAgent)
 	}
-
-	ctx = transport.NewContext(ctx, transport.Transport{Kind: transport.KindHTTP})
-	ctx = NewClientContext(ctx, ClientInfo{
-		Target:      client.endpoint,
-		PathPattern: c.pathPattern,
-		Request:     req,
-	})
-
+	ctx = transport.NewContext(ctx, transport.Transport{Kind: transport.KindHTTP, Endpoint: client.endpoint})
+	ctx = NewClientContext(ctx, ClientInfo{PathPattern: c.pathPattern, Request: req})
 	return client.invoke(ctx, req, args, reply, c)
 }
 

transport/http/context.go

@@ -3,14 +3,12 @@ package http
 import (
 	"context"
 	"net/http"
-	"net/url"
 )
 
 // ServerInfo represent HTTP server information.
 type ServerInfo struct {
 	Request  *http.Request
 	Response http.ResponseWriter
-	Endpoint *url.URL
 }
 
 type serverKey struct{}
@@ -30,7 +28,6 @@ func FromServerContext(ctx context.Context) (info ServerInfo, ok bool) {
 type ClientInfo struct {
 	Request     *http.Request
 	PathPattern string
-	Target      string
 }
 
 type clientKey struct{}

transport/http/server.go

@@ -99,8 +99,8 @@ func (s *Server) HandleFunc(path string, h http.HandlerFunc) {
 func (s *Server) ServeHTTP(res http.ResponseWriter, req *http.Request) {
 	ctx, cancel := ic.Merge(req.Context(), s.ctx)
 	defer cancel()
-	ctx = transport.NewContext(ctx, transport.Transport{Kind: transport.KindHTTP})
-	ctx = NewServerContext(ctx, ServerInfo{Request: req, Response: res, Endpoint: s.endpoint})
+	ctx = transport.NewContext(ctx, transport.Transport{Kind: transport.KindHTTP, Endpoint: s.endpoint.String()})
+	ctx = NewServerContext(ctx, ServerInfo{Request: req, Response: res})
 	if s.timeout > 0 {
 		ctx, cancel = context.WithTimeout(ctx, s.timeout)
 		defer cancel()

transport/transport.go

@@ -25,6 +25,7 @@ type Endpointer interface {
 // Transport is transport context value.
 type Transport struct {
 	Kind     Kind
+	Endpoint string
 }
 
 // Kind defines the type of Transport