xref: /aosp_15_r20/external/grpc-grpc/examples/python/no_codegen/greeter_client.py (revision cc02d7e222339f7a4f6ba5f422e6413f4bd931f2)
1 # Copyright 2020 The gRPC authors.
2 #
3 # Licensed under the Apache License, Version 2.0 (the "License");
4 # you may not use this file except in compliance with the License.
5 # You may obtain a copy of the License at
6 #
7 #     http://www.apache.org/licenses/LICENSE-2.0
8 #
9 # Unless required by applicable law or agreed to in writing, software
10 # distributed under the License is distributed on an "AS IS" BASIS,
11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 # See the License for the specific language governing permissions and
13 # limitations under the License.
14 """Hello World without using protoc.
15 
16 This example parses message and service schemas directly from a
17 .proto file on the filesystem.
18 
19 Several APIs used in this example are in an experimental state.
20 """
21 
22 from __future__ import print_function
23 
24 import logging
25 
26 import grpc
27 import grpc.experimental
28 
29 # NOTE: The path to the .proto file must be reachable from an entry
30 # on sys.path. Use sys.path.insert or set the $PYTHONPATH variable to
31 # import from files located elsewhere on the filesystem.
32 
33 protos = grpc.protos("helloworld.proto")
34 services = grpc.services("helloworld.proto")
35 
36 logging.basicConfig()
37 
38 response = services.Greeter.SayHello(
39     protos.HelloRequest(name="you"), "localhost:50051", insecure=True
40 )
41 print("Greeter client received: " + response.message)
42