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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
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48 lines
1.6 KiB
48 lines
1.6 KiB
3 years ago
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# Copyright 2021 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 AsyncIO implementation of the GRPC hellostreamingworld.MultiGreeter client."""
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import asyncio
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import logging
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import grpc
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import hellostreamingworld_pb2
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import hellostreamingworld_pb2_grpc
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async def run() -> None:
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async with grpc.aio.insecure_channel("localhost:50051") as channel:
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stub = hellostreamingworld_pb2_grpc.MultiGreeterStub(channel)
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# Read from an async generator
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async for response in stub.sayHello(
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hellostreamingworld_pb2.HelloRequest(name="you")):
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print("Greeter client received from async generator: " +
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response.message)
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# Direct read from the stub
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hello_stream = stub.sayHello(
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hellostreamingworld_pb2.HelloRequest(name="you"))
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while True:
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response = await hello_stream.read()
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if response == grpc.aio.EOF:
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break
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print("Greeter client received from direct read: " +
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response.message)
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if __name__ == "__main__":
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logging.basicConfig()
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asyncio.run(run())
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