Nestjs, Transactions, Dependency Injection, Repository Pattern, Repository Design Pattern.
items.service.ts /orders orders.controller.ts orders.entity.ts orders.module.ts orders.repository.ts orders.service.ts /products products.controller.ts products.entity.ts products.module.ts products.repository.ts products.service.ts app.module.ts main.ts As we can see, we have 3 different modules: