Add Authentication in Fastify

Learn how to add authentication in Fastify with step-by-step instructions and production-ready code snippets.

Overview

This guide will walk you through add authentication in Fastify. We've found 5 relevant code snippets to help you get started.

Prerequisites

Step-by-Step Guide

Step 1: Install Dependencies

First, install any required dependencies for add authentication:

npm install fastify mercurius graphql

Step 2: Copy the Code

Use our pre-built snippets to implement add authentication:

Step 3: Test Your Implementation

Verify that your implementation works correctly:

npm test
# or
npm run test:watch

Available Snippets for This Topic

JWT Authentication

JWT middleware with role-based access control

npx hanma add fastify-jwt --framework fastify

API Key Authentication

API key auth for service-to-service communication

npx hanma add fastify-api-key --framework fastify

Rate Limiter

Rate limiting with @fastify/rate-limit

npx hanma add fastify-rate-limiter --framework fastify

Swagger/OpenAPI

OpenAPI documentation with Swagger UI

npx hanma add fastify-swagger --framework fastify

Frequently Asked Questions

How do I implement add authentication in Fastify?
Follow the step-by-step guide above. Each step includes code examples and explanations. You can also browse the related snippets for more implementation details.
Are these code examples production-ready?
Yes, all snippets are designed for production use. However, always review and adapt the code to your specific requirements before deployment.
Can I use this guide with Fastify v2?
This guide is written for the current stable version. Check the framework documentation for version-specific differences.
Where can I find more examples?
Browse our complete snippet library for more code examples and implementations.