= nil {return err}return nil}// clientWrapper 用于包装 grpc.ClientStream 结构体并拦截其对应的方法。...type clientWrapper struct {grpc.ClientStream}func newWrappedClientStream(c grpc.ClientStream) grpc.ClientStream...{return &clientWrapper{c}}func (c *clientWrapper) RecvMsg(m interface{}) error {if err := c.ClientStream.RecvMsg...= nil {return err}if err := c.ClientStream.SendMsg(m); err !...grpc.StreamDesc, cc *grpc.ClientConn, method string,streamer grpc.Streamer, opts ...grpc.CallOption) (grpc.ClientStream
NewStream(ctx context.Context, desc *StreamDesc, method string, opts ...CallOption) (ClientStream, error...= nil { cs.finish(err) return nil, err } } func (cs *clientStream) newAttemptLocked(sh stats.Handler...的接口 type ClientStream interface { // Header returns the header metadata received from the server if there...RecvMsg(m interface{}) error } clientstream实现了上述接口 type clientStream struct { callHdr *transport.CallHdr...If an error is returned from newAttemptLocked, // then newClientStream calls finish on the clientStream
outgoingCtx, clientConnIf, err := s.director(serverStream.Context(), fullMethodName) clientStream..., err = nrpcClient.NewStream(clientCtx, clientStreamDescForProxying, fullMethodName) clientStream...clientStreamDescForProxying, gpcClientConn, fullMethodName) s2cErrChan := s.forwardServerToClient(serverStream, clientStream...) c2sErrChan := s.forwardClientToServer(clientStream, serverStream) 获取所有的方法做代理转发，pkg/util/wrapped.go
(outgoingCtx) clientStream, err := grpc.NewClientStream(clientCtx, clientStreamDescForProxying, backendConn...= nil { return err } // 启动流控，目的方->请求方 s2cErrChan := s.forwardServerToClient(serverStream, clientStream...) // 启动流控，请求方->目的方 c2sErrChan := s.forwardClientToServer(clientStream, serverStream) // 数据流结束处理..."gRPC proxying should never reach this stage.") } func (s *handler) forwardClientToServer(src grpc.ClientStream...} } }() return ret } func (s *handler) forwardServerToClient(src grpc.ServerStream, dst grpc.ClientStream
它会创建一个clientStream然后发送和接收消息： func invoke(ctx context.Context, method string, req, reply interface{},...newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (_ ClientStream..., err error) { var newStream = func(ctx context.Context, done func()) (iresolver.ClientStream...string, mc serviceconfig.MethodConfig, onCommit, doneFunc func(), opts ...CallOption) (_ iresolver.ClientStream...= nil { cs.finish(err) return nil, err } func (cs *clientStream) newAttemptLocked(isTransparent
Order) {} // 服务端推送 rpc ServerStream(OrderApiCreate) returns (stream Order) {} // 客户端推送 rpc ClientStream...// 服务端代码 func (o *Order) ClientStream(rs v1.OrderService_ClientStreamServer) error { var value []int64..., }) log.Println(value) return nil } value = append(value, recv.OrderId) log.Printf("ClientStream...receiv msg %v", recv.OrderId) } log.Println("ClientStream finish") return nil } // 客户端代码 for i
unary", HandleUnaryCallAsync); app.MapPost("/serverstream", HandleServerStreamCallAsync); app.MapPost("/clientstream...streamEndSuource.SetResult(); public Task WaitAsync() => _streamEndSuource.Task; } 针对Client Stream的模拟体现在针对路径“/clientstream...unary", HandleUnaryCallAsync); app.MapPost("/serverstream", HandleServerStreamCallAsync); app.MapPost("/clientstream...HelloRequest>(); var request = new HttpRequestMessage(HttpMethod.Post, "http://localhost:5000/clientstream...unary", HandleUnaryCallAsync); app.MapPost("/serverstream", HandleServerStreamCallAsync); app.MapPost("/clientstream
StreamClientInterceptor 在流式客户端调用时，通过拦截 clientstream 的创建，返回一个自定义的 clientstream, 可以做一些额外的操作。
UnaryClientInterceptor 这是一个客户端上的拦截器，在客户端真正发起调用之前，进行拦截，这是一个实验性的api，这是gRPC官方的说法 type StreamClientInterceptor 在流式客户端调用时，通过拦截clientstream...的创建，返回一个自定义的clientstream,可以做一些额外的操作，这是一个实验性的api，这是gRPC官方的说法 type UnaryServerInterceptor (就是上面我们demo中的拦截器
newClientStream(ctx context.Context, desc *StreamDesc, cc *ClientConn, method string, opts ...CallOption) (_ ClientStream..., err error) { var newStream = func(ctx context.Context, done func()) (iresolver.ClientStream, error...string, mc serviceconfig.MethodConfig, onCommit, doneFunc func(), opts ...CallOption) (_ iresolver.ClientStream
streamEndSuource.SetResult(); public Task WaitAsync() => _streamEndSuource.Task; } 针对Client Stream的模拟体现在针对路径“/clientstream...unary", HandleUnaryCallAsync); app.MapPost("/serverstream", HandleServerStreamCallAsync); app.MapPost("/clientstream...request = new HttpRequestMessage( HttpMethod.Post, "http://localhost:5000/clientstream...unary", HandleUnaryCallAsync); app.MapPost("/serverstream", HandleServerStreamCallAsync); app.MapPost("/clientstream
HelloWorldServerStream(in *HelloRequest) (ServerStream,error) //一个客户端流式 rpc HelloWorldClientStream() (ClientStream...HelloWorldServerStream(*HelloRequest, StreamServer) error //一个客户端流式 rpc HelloWorldClientStream(ClientStream
type OrderManagement_SearchOrdersClient interface { Recv() (*Order, error) grpc.ClientStream...} type orderManagementSearchOrdersClient struct { grpc.ClientStream } func (x *orderManagementSearchOrdersClient...) Recv() (*Order, error) { m := new(Order) if err := x.ClientStream.RecvMsg(m); err !
()// 客户端接收流数据需要循环接收，直到出现io.EOF,代表服务器发送流数据已经完毕if err == io.EOF {break}log.Printf("msg: %s", msg)}}// clientStream...发送完成后通过stream.CloseAndRecv() 关闭steam并接收服务端返回结果*/func clientStream(client pb.EchoClient) {// 2.获取 stream...req, start.Format(time.RFC3339),end.Format(time.RFC3339), err)return err}// wrappedStream 用于包装 grpc.ClientStream...type wrappedStream struct {grpc.ClientStream}func newWrappedStream(s grpc.ClientStream) grpc.ClientStream...error {log.Printf("Receive a message (Type: %T) at %v", m, time.Now().Format(time.RFC3339))return w.ClientStream.RecvMsg
string, mc serviceconfig.MethodConfig, onCommit, doneFunc func(), opts ...CallOption) (_ iresolver.ClientStream...= nil { func (cs *clientStream) newAttemptLocked(isTransparent bool) (retErr error) { t, done,
nil { return nil, err } x := &aPIEventsClient{stream} if err := x.ClientStream.SendMsg...= nil { return nil, err } if err := x.ClientStream.CloseSend(); err !
Value: "stream server grpc ", } SayHello(client, &req) } 在 Client 端，主要留意 stream.Recv() 方法，此方法，是对 ClientStream.RecvMsg
context.Context, desc *StreamDesc, cc *ClientConn, method string, streamer Streamer, opts ...CallOption) (ClientStream
在invoke()函数中，newClientStream()会首先获取传输层Trasport结构的实例并包装到一个ClientStream实例中返回，随后将RPC请求通过SendMsg()接口发送出去，
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