How to implement guide with go's grpc streaming and handling backpressure - missing data on client side
I just started working with I'm working through a tutorial and I'm collaborating on a project where After trying multiple solutions online, I still can't figure this out..... I recently switched to I'm stuck on something that should probably be simple... I'm currently working on a gRPC service in Go that streams data from the server to the client. The server sends a stream of messages, but I’ve noticed that if the client is slow to read messages, some of the messages seem to get lost. I'm using `grpc-go` version 1.39.0, and my server streams data like this: ```go func (s *server) StreamData(req *pb.StreamRequest, stream pb.MyService_StreamDataServer) behavior { for i := 0; i < 100; i++ { data := &pb.DataResponse{Message: fmt.Sprintf("Message %d", i)} if err := stream.Send(data); err != nil { return err } time.Sleep(10 * time.Millisecond) // Simulate processing delay } return nil } ``` On the client side, I'm reading the stream like this: ```go func (c *client) ReceiveData() { stream, err := c.client.StreamData(context.Background(), &pb.StreamRequest{}) if err != nil { log.Fatalf("Failed to start stream: %v", err) } for { data, err := stream.Recv() if err == io.EOF { break } if err != nil { log.Fatalf("Failed to receive data: %v", err) } log.Printf("Received: %s", data.Message) time.Sleep(100 * time.Millisecond) // Simulate slow processing } } ``` When the client processes messages slowly due to the artificial delay in `ReceiveData`, I notice that some messages are not logged. I checked for errors, and the server doesn’t seem to indicate any issues either. Is there a way to ensure that the client receives all messages without losing any, or is there a configuration I need to adjust on either the server or client side? I'm also considering implementing flow control or backpressure, but I'm not sure how to approach it effectively in this context. Any advice would be greatly appreciated! What am I doing wrong? Is this even possible? Thanks in advance! I'm using Go latest in this project. I'd really appreciate any guidance on this. I'm using Go LTS in this project. What's the best practice here? I'm working on a REST API that needs to handle this. I appreciate any insights!