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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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51 lines
1.7 KiB
51 lines
1.7 KiB
6 years ago
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# Copyright 2018 gRPC authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""The Python implementation of the GRPC helloworld.Greeter client."""
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from __future__ import print_function
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import grpc
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import helloworld_pb2
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import helloworld_pb2_grpc
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def run():
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# For more channel options, please see https://grpc.io/grpc/core/group__grpc__arg__keys.html
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channel = grpc.insecure_channel(
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target='localhost:50051',
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options=[('grpc.lb_policy_name', 'pick_first'),
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('grpc.enable_retries', 0),
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('grpc.keepalive_timeout_ms', 10),
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('grpc.max_receive_message_length', 12)])
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stub = helloworld_pb2_grpc.GreeterStub(channel)
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try:
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# synchronous rpc call
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stub.SayHello(helloworld_pb2.HelloRequest(name='you'))
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except Exception as err:
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print('Raised by max_receive_message_length option\n' + str(err))
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try:
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# asynchronous rpc call. timeout in second
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future = stub.SayHello.future(helloworld_pb2.HelloRequest(name='me'), timeout=1)
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response = future.result()
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print("Greeter client received: " + response.message)
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finally:
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channel.close()
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if __name__ == '__main__':
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run()
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