nestjs

Standardize NestJS REST API development with modular architecture and DTO validation.

Updated Mar 5, 2026

Search Tags:#typescript #testing #architecture #patterns #nestjs #rest-api

Ready to run

npx skills add https://github.com/Ezequielpereyraa/ai-config --skill nestjs-ezequielpereyraa

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: nestjs
Source: https://github.com/Ezequielpereyraa/ai-config/tree/main/skills/nestjs
Command: npx skills add https://github.com/Ezequielpereyraa/ai-config --skill nestjs-ezequielpereyraa

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Standardizes and enforces advanced NestJS patterns to help teams build robust, maintainable REST APIs with consistent architecture.

Core Features & Use Cases

Feature modules with clear boundaries: modules/, controllers/, services/, repositories, dtos, and tests to keep code organized.
Controller — thin layer: controllers delegate to services, keeping business logic in services and data access in repositories.
DTOs and validation: DTOs with class-validator to validate inputs at the boundary.
Domain patterns: repository pattern, guards, interceptors, and exception handling to enforce cross-cutting concerns.
Testing and ergonomics: ready-to-run testing module patterns and clear module wiring for production-grade apps.

Quick Start

Scaffold a NestJS feature module and implement a controller, service, repository, and DTOs following the patterns above.

Frequently Asked Questions about nestjs

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

FAQPage Schema

How do I structure a scalable NestJS REST API with modular architecture?▼

Validate NestJS API requests by using DTOs with class-validator at the controller boundary. This enforces strict input validation before data reaches services, ensuring consistent DTO-driven validation across scalable feature modules.

What is the best way to separate concerns between controllers and services in NestJS?▼

Separate concerns in NestJS by keeping controllers as thin layers that delegate to services. Business logic resides in services and data access in repositories, enforcing a clean modular architecture pattern for maintainable REST APIs.

How do I implement guards and interceptors for cross-cutting concerns in a NestJS application?▼

Implement guards and interceptors in NestJS to handle cross-cutting concerns like authorization and request transformation. Apply domain patterns including exception handling and repository patterns alongside these to enforce consistent module boundaries.

Can I use TypeScript and DTO validation for production-grade NestJS testing patterns?▼

TypeScript and DTO validation support production-grade NestJS testing through ready-to-run testing module patterns. Strict TypeScript usage combined with class-validator DTOs and clear module wiring enables consistent, testable feature development.

When should I enforce strict module boundaries in NestJS REST API development?▼

Enforce strict module boundaries in NestJS when building scalable REST APIs that require maintainable codebases. Clear module separation with controllers, services, repositories, DTOs, and tests keeps features organized and prevents cross-module coupling.