NestJS Snippets & Code Examples

A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications.

9 Categories 43 Snippets

What is NestJS?

A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications.

Use the snippets below to quickly add common functionality to your NestJS applications. All snippets are production-ready and can be copied directly into your project.

Popular Features

Categories

Libraries

Server implementations and database services for NestJS applications

10 snippets

NestJS Express Server

Production-ready NestJS HTTP server with Express adapter

NestJS Fastify Server

Production-ready NestJS HTTP server with Fastify adapter

WebSocket Gateway

Real-time WebSocket gateway with Socket.io

Decorators

Custom decorators for controllers and methods

6 snippets

Current User

Extract authenticated user from request

Roles Decorator

Role-based access control decorator

Public Route

Mark routes as public to skip auth

Guards

Authentication and authorization guards

4 snippets

JWT Auth Guard

JWT authentication with Passport

API Key Guard

API key authentication for services

Roles Guard

Role-based access control

Interceptors

Request/response transformation interceptors

5 snippets

Transform Interceptor

Wrap responses in consistent format

Serialize Interceptor

Response serialization with DTOs

Logging Interceptor

Request/response logging

Pipes

Validation and transformation pipes

5 snippets

Class Validator Pipe

Validation using class-validator

Zod Validation Pipe

Validation using Zod schemas

Parse UUID Pipe

UUID parsing and validation

Filters

Exception filters for error handling

4 snippets

HTTP Exception Filter

Global HTTP exception handling

All Exceptions Filter

Catch-all exception filter

Validation Filter

Validation exception handling

Middleware

Express-compatible middleware

2 snippets

Request ID Middleware

Request ID generation for tracing

Logger Middleware

HTTP request logging

Providers

Injectable services and utilities

3 snippets

Config Service

Type-safe configuration with validation

Logger Service

Custom Winston-based logger

Health Indicators

Health check services

Utilities

Standalone utility functions

4 snippets

Pagination Helpers

Offset and cursor pagination

Slug Generator

URL-safe slug generation

Password Utilities

Argon2 password hashing

Getting Started

Install the Hanma CLI to add snippets to your project:

npx hanma add  --framework nest

Or browse the categories above to find the snippet you need.