Understand how NestJS pieces fit together to build a backend that can grow without becoming a mess.
NestJS encourages a modular architecture where responsibilities are separated into controllers, providers, modules, and other framework components. This gives teams a consistent way to organize large backend applications.
A well-designed NestJS application separates HTTP handling, business logic, data access, authentication, and infrastructure concerns. Understanding this architecture helps you make better design decisions instead of simply putting every piece of logic inside controllers and services.
What you'll walk away knowing