Error-Handling

Last Update : 07 August, 2023 | Published : 27 April, 2023 | 1 Min Read

In this blog we are going to talk about error handling while streaming between frontend and backend.

Here’s an example of how you can handle errors on both server-side and client side.

func (s *server) StreamHello(req *pb.HelloRequest, stream pb.HelloService_StreamHelloServer) error {
  for i := 1; i <= 10; i++ {
    resp := &pb.HelloResponse{
      Message: fmt.Sprintf("Hello, %s! This is message %d.", req.GetName(), i),
    }
    if err := stream.Send(resp); err != nil {
      log.Printf("Error sending message: %v", err)
      return err
    }
    time.Sleep(500 * time.Millisecond)
  }
  return nil
}

In this updated implementation, we are handling errors that may occur during the streaming process. If an error occurs while sending a message, we log the error and return it to the client.

On the client-side, you can handle the error using the stream.on(’error’,…) event.

Here’s an example:


stream.on('error', err => {
  console.error('Error:', err);
});

In this example, we are logging the error to the console.

By handling errors on both the server-side and client-side, you can ensure that your application is robust and handles errors gracefully.

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