| # Copyright 2020 gRPC authors. |
| # |
| # Licensed under the Apache License, Version 2.0 (the "License"); |
| # you may not use this file except in compliance with the License. |
| # You may obtain a copy of the License at |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| """The Python AsyncIO implementation of the GRPC helloworld.Greeter server.""" |
| |
| import logging |
| import asyncio |
| import grpc |
| |
| import helloworld_pb2 |
| import helloworld_pb2_grpc |
| |
| |
| class Greeter(helloworld_pb2_grpc.GreeterServicer): |
| |
| async def SayHello( |
| self, request: helloworld_pb2.HelloRequest, |
| context: grpc.aio.ServicerContext) -> helloworld_pb2.HelloReply: |
| return helloworld_pb2.HelloReply(message='Hello, %s!' % request.name) |
| |
| |
| async def serve() -> None: |
| server = grpc.aio.server() |
| helloworld_pb2_grpc.add_GreeterServicer_to_server(Greeter(), server) |
| listen_addr = '[::]:50051' |
| server.add_insecure_port(listen_addr) |
| logging.info("Starting server on %s", listen_addr) |
| await server.start() |
| try: |
| await server.wait_for_termination() |
| except KeyboardInterrupt: |
| # Shuts down the server with 0 seconds of grace period. During the |
| # grace period, the server won't accept new connections and allow |
| # existing RPCs to continue within the grace period. |
| await server.stop(0) |
| |
| |
| if __name__ == '__main__': |
| logging.basicConfig(level=logging.INFO) |
| asyncio.run(serve()) |