NestJS Best Practices

Overview

Grounded in the Official NestJS Documentation, this skill enforces modular architecture, dependency injection scoping, exception filters, DTO validation with class-validator, and Drizzle ORM integration patterns.

When to Use

• Designing/refactoring NestJS modules or dependency injection
• Creating exception filters, validating DTOs, or integrating Drizzle ORM
• Reviewing code for anti-patterns or onboarding to a NestJS codebase

Instructions

1. Modular Architecture

Follow strict module encapsulation. Each domain feature should be its own @Module():