syntax = "proto3"; package io.github.helloworlde; option go_package = "github.com/helloworlde/grpc-gateway;grpc_gateway"; import "google/protobuf/wrappers.proto"; import "google/api/annotations.proto"; service HelloService{ rpc Hello(HelloMessage) returns (HelloResponse){ option (google.api.http) = { get: "/hello" }; } } message HelloMessage { string message = 1; } message HelloResponse { string result = 1; }