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nestjs-patterns

Guide NestJS module organization, request lifecycle, and testing strategies.

1|Updated Mar 1, 2026
Search Tags:#typescript#architecture#design patterns#backend#api development#nestjs
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npx skills add https://github.com/hjemmesidekongen/ai --skill nestjs-patterns-hjemmesidekongen
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Please help me install this Agent Skill.
Skill: nestjs-patterns
Source: https://github.com/hjemmesidekongen/ai/tree/main/plugins/smedjen/skills/nestjs-patterns
Command: npx skills add https://github.com/hjemmesidekongen/ai --skill nestjs-patterns-hjemmesidekongen

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps developers build robust and maintainable NestJS applications by codifying best practices for module organization, request handling, and testing.

Core Features & Use Cases

  • Module Architecture: Guides on structuring feature, shared, and dynamic modules.
  • Request Lifecycle: Explains the order of middleware, guards, interceptors, pipes, and handlers.
  • Testing Strategies: Details unit and E2E testing approaches with examples.
  • Use Case: A developer starting a new NestJS project can use this Skill to ensure they are following established patterns for dependency injection, error handling, and API design from the outset.

Quick Start

Review the NestJS module organization patterns to structure your project effectively.

Frequently Asked Questions about nestjs-patterns

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I structure NestJS modules for scalable backend architecture?▼

Structure NestJS modules by organizing code into feature, shared, and dynamic modules. This approach separates concerns, promotes dependency injection, and ensures your Node.js application remains maintainable as it scales.

What is the execution order of the NestJS request lifecycle?▼

The NestJS request lifecycle executes in a specific order: middleware, guards, interceptors, pipes, and finally the route handler. Understanding this sequence is crucial for correct request handling and API development.

How do I set up unit and E2E testing for a NestJS API?▼

Set up NestJS testing by utilizing built-in dependency injection to mock components for unit tests, and employing the Test application module for E2E testing. This ensures robust API development and reliable test coverage.

Can I use custom decorators for dependency injection in NestJS?▼

Yes, you can use custom decorators extensively in NestJS for dependency injection and request handling. They allow you to attach metadata to classes and methods, streamlining API development and enforcing architectural patterns.

What are common anti-patterns in NestJS architecture?▼

Common NestJS anti-patterns include improper module organization, bypassing the dependency injection container, and misordering request lifecycle components. Avoiding these ensures scalable and maintainable TypeScript backend applications.

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