API Development Challenges

A practical set of Node.js and Express challenges covering routing, REST APIs, middleware, rate limiting, and JWT authentication.

Hello Express

Create an Express server with a GET /hello route returning JSON.

Build a /users REST API with GET, POST, PUT, DELETE.

Parse and filter using query parameters in Express.

Implement rate limiting middleware (max 100 requests per 15 min per IP).

Implement JWT login and protected route middleware.