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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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77 lines
2.5 KiB
77 lines
2.5 KiB
6 years ago
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# Copyright 2019 the 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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"""An example of compression on the client side with gRPC."""
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from __future__ import absolute_import
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from __future__ import division
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from __future__ import print_function
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import argparse
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import logging
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import grpc
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from examples import helloworld_pb2
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from examples import helloworld_pb2_grpc
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_DESCRIPTION = 'A client capable of compression.'
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_COMPRESSION_OPTIONS = {
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"none": grpc.Compression.NoCompression,
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"deflate": grpc.Compression.Deflate,
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"gzip": grpc.Compression.Gzip,
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}
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_LOGGER = logging.getLogger(__name__)
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def run_client(channel_compression, call_compression, target):
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with grpc.insecure_channel(
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target, compression=channel_compression) as channel:
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stub = helloworld_pb2_grpc.GreeterStub(channel)
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response = stub.SayHello(
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helloworld_pb2.HelloRequest(name='you'),
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compression=call_compression,
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wait_for_ready=True)
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print("Response: {}".format(response))
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def main():
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parser = argparse.ArgumentParser(description=_DESCRIPTION)
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parser.add_argument(
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'--channel_compression',
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default='none',
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nargs='?',
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choices=_COMPRESSION_OPTIONS.keys(),
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help='The compression method to use for the channel.')
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parser.add_argument(
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'--call_compression',
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default='none',
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nargs='?',
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choices=_COMPRESSION_OPTIONS.keys(),
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help='The compression method to use for an individual call.')
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parser.add_argument(
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'--server',
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default='localhost:50051',
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type=str,
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nargs='?',
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help='The host-port pair at which to reach the server.')
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args = parser.parse_args()
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channel_compression = _COMPRESSION_OPTIONS[args.channel_compression]
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call_compression = _COMPRESSION_OPTIONS[args.call_compression]
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run_client(channel_compression, call_compression, args.server)
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if __name__ == "__main__":
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logging.basicConfig()
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main()
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