Challenges

Master AI-assisted coding through hands-on practice

33 challenges

6 categories

All Easy Medium Hard|Backend Frontend Incident Resolution DevOps Database AI Skills

Build a Rate Limiter

Implement a rate limiting middleware that limits requests per IP address. Start with the provided skeleton and complete the implementation.

Fix the Middleware Order

Authentication middleware is not protecting routes correctly. The order of middleware matters!

Fix the Async/Await Bug

An async function is not waiting for data to load before processing. Fix the promise handling issue.