Take a deep dive into the req (request) and res (response) objects in Express.js, the heart of every HTTP interaction! Learn how to access route parameters, query strings, headers, request bodies, and respond correctly with status codes, JSON, redirects, and more.
✅ What You’ll Learn:
What are req and res in Express?
Accessing and using:
req.query, req.params, req.body, req.headers
res.send(), res.json(), res.status(), res.redirect()
How to send proper API responses
Best practices for request validation and response handling
Full working example for real-world understanding
🧩 Perfect For:
Backend developers, Node.js beginners, and those learning Express.js for API or web server development.
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