express-rest-api
Build production-ready RESTful APIs with Express.js including routing, middleware, validation, and error handling for scalable backend services
By pluginagentmarketplace · 878 installs
npx skills add pluginagentmarketplace/custom-plugin-nodejs --skill express-rest-api
Source repository · Upstream listing
Express REST API Skill
Master building robust, scalable REST APIs with Express.js, the de facto standard for Node.js web frameworks.
Quick Start
Build a basic Express API in 5 steps:
1. Setup Express npm install express
2. Create Routes Define GET, POST, PUT, DELETE endpoints
3. Add Middleware JSON parsing, CORS, security headers
4. Handle Errors Centralized error handling
5. Test & Deploy Use Postman/Insomnia, deploy to cloud
Core Concepts
1. Express Application Structure
2. RESTful Route Design
3. Middleware Patterns
4. Error Handling
Learning Path
Beginner (2 3 weeks)
✅ Setup Express and create basic routes
✅ Understand middleware concept
✅ Implement CRUD operations
✅ Test with Postman
Intermediate (4 6 weeks)
✅ Implement authentication (JWT)
✅ Add input validation
✅ Organize code (MVC pattern)
✅ Connect to database
Advanced (8 10 weeks)
✅ API versioning ( /api/v1/ , /api/v2/ )
✅ Rate limiting and security
✅ Pagination and filtering
✅ API documentation (Swagger)
✅ Performance optimization
Essential Packages
Common Patterns
Response Format
HTTP Status Codes
200 OK Successful GET/PUT
201 Created Successful POST
204 No Content Successful DELETE
400 Bad Request Validation error
401 Unauthorized Auth required
403 Forbidden No permission
404 Not Found Resource not found
500 Internal Error Server error
Project Structure
Production Checklist
✅ Environment variables (.env)
✅ Security headers (Helmet)
✅ CORS configuration
✅ Rate limiting
✅ Input validation
✅ Error handling
✅ Logging (Morgan/Winston)
✅ Testing (Jest/Supertest)
✅ API documentation
Real World Example
Complete user API:
When to Use
Use Express REST API when:
Building backend for web/mobile apps
Creating microservices
Developing API first applications
Need flexible, lightweight framework
Want large ecosystem and community
Related Skills
Async Programming (handle async operations)
Database Integration (connect to MongoDB/PostgreSQL)
JWT Authentication (secure your APIs)
Jest Testing (test your endpoints)
Docker Deployment (containerize your API)
Resources
[Express.js Official Docs](https://expressjs.com)
[REST API Best Practices](https://restfulapi.net)
[MDN HTTP Guide](https://developer.mozilla.org/en US/docs/Web/HTTP)