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