Fastify: Building High-Performance Node.js APIs

Build fast Node.js APIs with Fastify routing, JSON Schema validation, plugins, hooks and JWT auth. For developers who want an Express alternative.

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What you'll learn

  • Create routes with request and reply objects and proper status codes.
  • Validate and serialize data with JSON Schema and TypeBox type providers.
  • Structure apps with plugins, encapsulation, hooks and autoload.
  • Add authentication, database access, error handling and logging.
  • Test, secure, containerize and scale a Fastify service.

Syllabus

Module 1: Getting Started

  1. What is Fastify?
  2. Installation & Setup
  3. Your First Server

Module 2: Foundation

  1. Request & Reply Objects
  2. Plugins & Decorators
  3. Configuration & Options

Module 3: Core Routing & Handlers

  1. Basic Routing
  2. Route Parameters & Query
  3. Route Handlers & Status Codes

Module 4: Data Handling & Validation

  1. JSON Schema & Validation
  2. Response Serialization
  3. Parsing Request Bodies

Module 5: Design Patterns & Hooks

  1. Lifecycle Hooks
  2. Middleware & Hooks Pattern
  3. Encapsulation & Scope
  4. Type Providers with TypeBox
  5. Project Structure with autoload

Module 6: Practical Implementation

  1. Authentication with JWT
  2. Database Integration
  3. Testing Routes

Module 7: Quality & Reliability

  1. Error Handling
  2. Logging

Module 8: Tools & Deployment

  1. TypeORM with Fastify
  2. Docker & Containerization
  3. Deployment & Production

Module 9: Performance & Scaling

  1. Caching Strategies
  2. Rate Limiting
  3. Scaling & Clustering

Module 10: Best Practices & Interview

  1. Security Best Practices
  2. CORS & Security Headers
  3. Monitoring & Observability
  4. Interview Questions & Tips