syntax = "proto3";

package hello;

service HelloService {
  rpc SayHello(HelloRequest) returns (HelloResponse) {
    option (google.api.http) = {
      // https://github.com/googleapis/googleapis/blob/master/google/api/http.proto
      // HTTP | gRPC
      // -----|-----
      // `GET /v1/messages/123456`  | `HelloRequest(greeting: "123456")`
      get: "/v1/messages/{greeting}"
      additional_bindings {
        get: "/v1/messages/legacy/{greeting=**}"
      }
      post: "/v1/messages/"
      body: "*"
    }
  };

  // define a gRPC method that's not implemented in grpcbin
  rpc UnknownMethod(HelloRequest) returns (HelloResponse) {
    option (google.api.http) = {
      get: "/v1/unknown/{greeting}"
    }
  };
}

message HelloRequest {
  required string greeting = 1;
}

message HelloResponse {
  required string reply = 1;
}