Fastify Best Practices

What it does

This skill provides best practices and guidelines for using Fastify, a high-performance web framework for Node.js. It helps developers build scalable, secure, and efficient backend services by leveraging Fastify's features such as plugins, decorators, and routing.

When to use it

• When setting up a new Fastify project and looking for structured guidance.
• When optimizing an existing Fastify application for performance or security.
• When integrating third-party plugins into a Fastify app and needing best practices for compatibility.
• When preparing documentation or training materials on Fastify development.

Key capabilities

• Guidance on organizing project structure and file layout.
• Recommendations for using decorators and plugins effectively.
• Security tips, including input validation and rate limiting.
• Performance optimization strategies like caching and middleware usage.

Example prompts

• "How should I organize my Fastify project files?"
• "What are the best practices for securing a Fastify API endpoint?"
• "Can you explain how to use decorators in Fastify with examples?"

Tips & gotchas

• Ensure your Node.js environment is up-to-date, as Fastify relies on modern JavaScript features.
• Always validate inputs and sanitize outputs to prevent common security vulnerabilities like injection attacks.