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# Copyright 2020 The 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.
"""gRPC Python AsyncIO helloworld.Greeter client with channel options and timeout parameters."""
import asyncio
import logging
import grpc
import helloworld_pb2
import helloworld_pb2_grpc
# For more channel options, please see https://grpc.io/grpc/core/group__grpc__arg__keys.html
CHANNEL_OPTIONS = [('grpc.lb_policy_name', 'pick_first'),
('grpc.enable_retries', 0),
('grpc.keepalive_timeout_ms', 10000)]
async def run() -> None:
async with grpc.aio.insecure_channel(target='localhost:50051',
options=CHANNEL_OPTIONS) as channel:
stub = helloworld_pb2_grpc.GreeterStub(channel)
# Timeout in seconds.
# Please refer gRPC Python documents for more detail. https://grpc.io/grpc/python/grpc.html
response = await stub.SayHello(helloworld_pb2.HelloRequest(name='you'),
timeout=10)
print("Greeter client received: " + response.message)
if __name__ == '__main__':
logging.basicConfig()
asyncio.run(run())
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