modules
NestJS Modules
When to Use This Skill
Use this skill when:
- Organizing application structure into features
- Creating reusable modules
- Configuring module imports and exports
- Creating dynamic modules with runtime configuration
- Setting up global modules
- Understanding module dependency graph
What are Modules?
Modules are classes decorated with @Module() that organize the application structure. Every application has at least one root module, and feature modules organize related functionality.
Basic Module
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NestJS security best practices including CORS, CSRF protection, Helmet for HTTP headers, rate limiting, encryption, and hashing. Use when implementing security features, hardening applications, or protecting against common vulnerabilities.
3authentication
NestJS authentication with JWT, Passport, local/JWT strategies, and auth guards. Use when implementing user login, token generation, protected routes, or integrating authentication systems.
3caching
NestJS caching with cache module, in-memory caching, Redis integration, cache interceptor, and TTL management. Use when implementing performance optimization, reducing database queries, or storing temporary data.
2exception-filters
NestJS exception filters for handling errors, customizing error responses, logging exceptions, and providing consistent error formatting across your application.
2cli
NestJS CLI for generating resources, managing workspaces, building applications, and development commands. Use when scaffolding NestJS projects, generating boilerplate code, or managing monorepo structures.
2testing
NestJS unit and E2E testing with Test.createTestingModule(), mocking dependencies, testing best practices, and integration testing strategies. Use when writing tests for controllers, services, or full application flows.
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