syntax = "proto3"; option go_package = "go-grpc-gateway-template/proto/helloworld"; package helloworld; import "google/api/annotations.proto"; service Greeter { rpc SayHello (HelloRequest) returns (HelloReply) { option (google.api.http) = { post: "/v1/example/echo" body: "*" }; } } message HelloRequest { string name = 1; } message HelloReply { string message = 1; }