syntax = "proto3"; package user; option go_package ="/user"; message RegisterReq { string email = 1; string password = 2; } message RegisterResp { int32 user_id = 1; } message LoginReq { string email = 1; string password = 2; } message LoginResp { int32 user_id = 1; } service UserService { rpc Register (RegisterReq) returns (RegisterResp) {} rpc Login (LoginReq) returns (LoginResp) {} }