1 /* 2 * 3 * Copyright 2022 Google LLC 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * https://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 */ 18 19 // Package echo contains the libraries for running an Echo server. 20 package echo 21 22 import ( 23 "context" 24 25 pb "github.com/google/s2a-go/example/proto/echo_go_proto" 26 ) 27 28 // Server is an echo server used for testing. 29 type Server struct { 30 pb.UnimplementedEchoServer 31 } 32 33 // Echo uses the message, Msg, in EchoRequest to formulate EchoResponse. 34 func (s *Server) Echo(ctx context.Context, req *pb.EchoRequest) (*pb.EchoResponse, error) { 35 return &pb.EchoResponse{Msg: req.GetMsg()}, nil 36 } 37