Fastify Fastify is one of the fastest Node.js web frameworks. It validates requests via JSON Schema, serializes responses automatically, and organizes code through an encapsulated plugin system. Installation Project Structure App Setup Routes with Schema Validation Plugins Hooks Error Handling Testing Key Patterns - Use ( ) for plugins that should share the same encapsulation context - Use JSON Schema for validation — it also generates automatic serialization for speed - Use to auto-register plugins and routes from directories - Decorate the fastify instance ( ) for shared services (db, cache…