syntax = "proto3"; package shopping_shoppingCart_service; option go_package = "./proto;shopping_service"; import "proto/base_shopping_service.proto"; service CartItemService{ rpc CreateShoppingCart(CreateShoppingCartRequest) returns(CreateShoppingCartResponse); rpc CreateShoppingCartItem(CreateShoppingCartItemRequest) returns(CreateShoppingCartItemResponse); } message CreateShoppingCartRequest{ int64 user_id = 1; int64 quantity = 2; } message CreateShoppingCartResponse{} message CreateShoppingCartItemRequest{ repeated base_shopping_service.ShoppingCartItem items = 1; } message CreateShoppingCartItemResponse{}