syntax = "proto3"; package codeservice; option go_package = "./codeservice"; message Request { } message Response { int64 ErrorCode = 1; // 响应代码 string ErrorMsg = 2; // 响应信息 TypeStruct Data = 3;//数据 } //返回数据 message TypeStruct{ map Area = 1; map City = 2; map Subtype = 3; map Buyerclass = 4; map Subscopeclass = 5; } service CodeService { rpc CodeTransformation(Request) returns(Response); }