As a sanity check, are the client and server both using the same generated code? Protobuf will ignore fields it doesn't know about by default. In your case, it sounds like you may have modified the proto on one side. Is this the case?
On Monday, September 10, 2018 at 3:05:24 AM UTC-7, [email protected] wrote: > > The repeated field of protobuf message is always empty on the gRPC client > side even though I set it on the gRPC server side. > Is there any way to fix this issue? > > > > - helloworld.proto file: > > syntax = "proto3"; > > package helloworld; > > // The greeting service definition. > service Greeter { > // Sends a greeting. > rpc SayHello (HelloRequest) returns (HelloReply) {} > } > > // The request message containing the user's name. > message HelloRequest { > string name = 1; > } > > // The response message containing the greetings. > message HelloReply { > string message = 1; > repeated string snippets = 2; > } > > > > > > - server.py > > from __future__ import absolute_import > from __future__ import division > from __future__ import print_function > > from concurrent import futures > import time > > import grpc > > import grpc_demo.lib.protos.helloworld_pb2 as helloworld_pb2 > import grpc_demo.lib.protos.helloworld_pb2_grpc as helloworld_pb2_grpc > > > _ONE_DAY_IN_SECONDS = 60 * 60 * 24 > > class Greeter(helloworld_pb2_grpc.GreeterServicer): > > def SayHello(self, request, context): > reply = helloworld_pb2.HelloReply(message='Hello, %s!' % > request.name) > reply.snippets.append('test-snippets') > # print('reply:' + reply) > return reply > > def main(): > """Main entrance.""" > > server = grpc.server(futures.ThreadPoolExecutor(max_workers=10)) > helloworld_pb2_grpc.add_GreeterServicer_to_server(Greeter(), server > ) > server.add_insecure_port('[::]:50051') > server.start() > try: > while True: > time.sleep(_ONE_DAY_IN_SECONDS) > except KeyboardInterrupt: > server.stop(0) > > > if __name__ == '__main__': > main() > > > > > > - client.py > > from __future__ import absolute_import > from __future__ import division > from __future__ import print_function > > import grpc > > import grpc_demo.lib.protos.helloworld_pb2 as helloworld_pb2 > import grpc_demo.lib.protos.helloworld_pb2_grpc as helloworld_pb2_grpc > > def main(): > """Main entrance.""" > > # NOTE(gRPC Python Team): .close() is possible on a channel and > should be > # used in circumstances in which the with statement does not fit > the needs > # of the code. > with grpc.insecure_channel('localhost:50051') as channel: > stub = helloworld_pb2_grpc.GreeterStub(channel) > response = > stub.SayHello(helloworld_pb2.HelloRequest(name='you')) > print("Greeter client received: " + response.message + ', > '.join(response.snippets) > + str(len(response.snippets))) > > > if __name__ == '__main__': > main() > > > > > - Expected Result: > > > *Greeter client received: Hello, you!test-snippets1* > > > - Actual Result: > > > *Greeter client received: Hello, you!0* > > Thanks! > Jiongjiong Li > -- You received this message because you are subscribed to the Google Groups "grpc.io" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/grpc-io. To view this discussion on the web visit https://groups.google.com/d/msgid/grpc-io/1c78e1f0-9e24-40b6-b47a-154dac49ff70%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
