BRPC/example/cascade_echo_c++/echo.proto

// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

syntax="proto2";
package example;

option cc_generic_services = true;

message EchoRequest {
    required string message = 1;
    optional int32 depth = 2;
};

message EchoResponse {
    required string message = 1;
};

service EchoService {
    rpc Echo(EchoRequest) returns (EchoResponse);
};