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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
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83 lines
2.5 KiB
83 lines
2.5 KiB
# 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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import helloworld_pb2 |
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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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_RPC_COUNT = 10 |
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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 |
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) as channel: |
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stub = helloworld_pb2_grpc.GreeterStub(channel) |
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for _ in range(_RPC_COUNT): |
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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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) |
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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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) |
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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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) |
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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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) |
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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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