Learn EXPRESS-JS with Real Code Examples

Lightweight core ensures fast request handling

Middleware chaining may add slight overhead

Node.js event loop handles concurrent requests efficiently

Use clustering or PM2 for high-load environments

Static files can be served via CDN for performance

Use HTTPS for secure communication

Sanitize inputs to prevent injection attacks

Use helmet or similar middleware for HTTP headers

Implement rate limiting and authentication

Keep dependencies updated to avoid vulnerabilities

Log requests and responses

Monitor server health and CPU usage

Use PM2 or similar tools

Track errors and exceptions

Integrate with monitoring platforms (New Relic, Grafana)

Follow JS best practices and ESLint rules

Use modular routes and middleware

Write unit and integration tests

Document API endpoints

Use async/await for asynchronous flows