1# Copyright 2020 gRPC authors. 2# 3# Licensed under the Apache License, Version 2.0 (the "License"); 4# you may not use this file except in compliance with the License. 5# You may obtain a copy of the License at 6# 7# http://www.apache.org/licenses/LICENSE-2.0 8# 9# Unless required by applicable law or agreed to in writing, software 10# distributed under the License is distributed on an "AS IS" BASIS, 11# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12# See the License for the specific language governing permissions and 13# limitations under the License. 14"""The Python AsyncIO implementation of the GRPC helloworld.Greeter server.""" 15 16import asyncio 17import logging 18 19import grpc 20import helloworld_pb2 21import helloworld_pb2_grpc 22 23 24class Greeter(helloworld_pb2_grpc.GreeterServicer): 25 async def SayHello( 26 self, 27 request: helloworld_pb2.HelloRequest, 28 context: grpc.aio.ServicerContext, 29 ) -> helloworld_pb2.HelloReply: 30 return helloworld_pb2.HelloReply(message="Hello, %s!" % request.name) 31 32 33async def serve() -> None: 34 server = grpc.aio.server() 35 helloworld_pb2_grpc.add_GreeterServicer_to_server(Greeter(), server) 36 listen_addr = "[::]:50051" 37 server.add_insecure_port(listen_addr) 38 logging.info("Starting server on %s", listen_addr) 39 await server.start() 40 await server.wait_for_termination() 41 42 43if __name__ == "__main__": 44 logging.basicConfig(level=logging.INFO) 45 asyncio.run(serve()) 46