nestjs

What problem does it solve?

This Skill provides a comprehensive guide for developing NestJS applications, ensuring adherence to best practices for architecture, dependency injection, and module organization. It helps developers build scalable, maintainable, and high-quality backend services, reducing technical debt and improving team collaboration.

Core Features & Use Cases

• Domain-Centric Modularization: Guides on organizing modules by business domain, not by technical function.
• Dependency Injection: Enforces constructor injection and proper provider registration for testability and clarity.
• DTO/Entity Separation: Ensures clear boundaries between data transfer objects and database entities, preventing logic leakage.
• Error Handling: Advocates for domain-specific exception filters and explicit error throwing for robust API responses.
• Use Case: A backend developer is starting a new NestJS project and needs to establish a solid architectural foundation.
• Use Case: An existing NestJS application has grown complex, and the team needs guidelines to refactor it for better maintainability and scalability.

Quick Start

Generate a NestJS module structure for a 'Product' domain, including a service, controller, and DTOs, following best practices.