How to build an ecommerce app with NestJS

NestJS, a popular Node.js framework, facilitates the development of server-side applications through a structured approach, leveraging features reminiscent of Angular. This tutorial guides users through building a basic NestJS ecommerce application, covering essential components like product management, user authentication, and cart functionality. The framework uses modules, controllers, and services to organize and manage application logic, with dependency injection playing a key role. Express or Fastify can be used as the underlying HTTP server framework, providing a solid foundation for scalable and maintainable applications. The tutorial also integrates MongoDB for data management, employs Passport for user authentication, and introduces role-based access control for authorization. Through detailed step-by-step instructions, readers learn to set up and configure the application, create schemas and data transfer objects (DTOs), and implement business logic and API endpoints. The project can be expanded further with features like pagination, data validation, and order management, showcasing NestJS's potential for building robust and flexible server-side applications.