NestJS Controllers & Services

To enforce NestJS coding standards, apply architectural patterns that ensure controllers act as thin handlers delegating business logic to stateless services, utilizing strict DTO validation and interceptor-based response mapping.

The best way to structure NestJS controllers is to keep them as thin handlers that delegate all business logic to services, ensuring clear separation of concerns and maintainability across large codebases.

Configuring DTO validation in a NestJS backend requires strict validation pipe configurations and transformation rules for robust data handling, ensuring all incoming requests are validated before reaching service layers.

Yes, you can use interceptors for response mapping in NestJS to standardize API outputs, which complements the enforcement of architectural patterns for controllers, services, and DTO validation.

Yes, enforcing these NestJS architectural patterns works for large codebases by maintaining consistency across all developers, ensuring everyone follows identical patterns for request handling, validation, and service interactions.

NestJS services should be stateless to promote scalable and maintainable code, ensuring business logic is cleanly separated from controller request handling and DTO validation layers for robust architecture.