GreeterImpl.java

GreeterImpl.java

private class GreeterImpl extends GreeterGrpc.GreeterImplBase {

  @Override
  public void sayHello(HelloRequest req, StreamObserver<HelloReply> responseObserver) {
    //Build Proto Messages Object
    HelloReply reply = HelloReply.newBuilder().setMessage("Hello " + req.getName()).build();
    
    //Send the response, you can send multiple objects which will be trasmitted in streaming fashion
    responseObserver.onNext(reply);
    
    //Indicate client that response has finished
    responseObserver.onCompleted();
  }
}