Nest.js · question
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Explain the core building blocks of a Nest.js application.
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The core building blocks are:
- Controllers: Handle incoming requests and return responses
- Services: Contain business logic and are injectable
- Modules: Organize and encapsulate related functionality
- Providers: Classes that can be injected (services, repositories, factories)
- Middleware: Functions that execute before route handlers
- Guards: Determine whether a request should be handled
- Interceptors: Transform data or add extra logic around method execution
- Pipes: Transform and validate input data
- Filters: Handle exceptions and errors
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