add http transport (#1060)

* add http transport

* delete method and path

transport/http/client.go

@@ -199,9 +199,8 @@ func (client *Client) Invoke(ctx context.Context, method, path string, args inte
 	ctx = transport.NewClientContext(ctx, &Transport{
 		endpoint:  client.opts.endpoint,
 		header:    headerCarrier(req.Header),
-		path:      path,
-		method:    method,
 		operation: c.operation,
+		request:   req,
 	})
 	return client.invoke(ctx, req, args, reply, c)
 }

transport/http/server.go

@@ -164,10 +164,9 @@ func (s *Server) filter() mux.MiddlewareFunc {
 			}
 			tr := &Transport{
 				endpoint:  s.endpoint.String(),
-				path:      req.RequestURI,
-				method:    req.Method,
 				operation: req.RequestURI,
 				header:    headerCarrier(req.Header),
+				request:   req,
 			}
 			if r := mux.CurrentRoute(req); r != nil {
 				if path, err := r.GetPathTemplate(); err == nil {

transport/http/transport.go

@@ -14,10 +14,9 @@ var (
 // Transport is an HTTP transport.
 type Transport struct {
 	endpoint  string
-	path      string
-	method    string
 	operation string
 	header    headerCarrier
+	request   *http.Request
 }
 
 // Kind returns the transport kind.
@@ -40,24 +39,9 @@ func (tr *Transport) Header() transport.Header {
 	return tr.header
 }
 
-// Path returns the Transport path from server context.
-func Path(ctx context.Context) string {
-	if tr, ok := transport.FromServerContext(ctx); ok {
-		if tr, ok := tr.(*Transport); ok {
-			return tr.path
-		}
-	}
-	return ""
-}
-
-// Method returns the Transport method from server context.
-func Method(ctx context.Context) string {
-	if tr, ok := transport.FromServerContext(ctx); ok {
-		if tr, ok := tr.(*Transport); ok {
-			return tr.method
-		}
-	}
-	return ""
+// Request returns the transport request.
+func (tr *Transport) Request() *http.Request {
+	return tr.request
 }
 
 // SetOperation sets the transport operation.