1// Copyright 2021 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 15syntax = "proto3"; 16 17package helloworld; 18 19// The greeting service definition. 20service Greeter { 21 // Sends a greeting 22 rpc SayHello (HelloRequest) returns (HelloReply) {} 23} 24 25// The request message containing the user's name. 26message HelloRequest { 27 string name = 1; 28} 29 30// The response message containing the greetings 31message HelloReply { 32 string message = 1; 33} 34