Controllers receive HTTP requests and decide which part of your application should handle them.
Controllers are responsible for handling incoming requests in NestJS. You define routes using decorators such as @Get(), @Post(), @Put(), and @Delete(), and then connect those routes to methods that process the request.
Controllers should generally stay focused on handling HTTP concerns rather than containing all of your business logic. That logic is usually moved into providers or services, which keeps your application easier to test and maintain.
What you'll walk away knowing