The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#) https://grpc.io/
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# 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)
4 years ago
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())