Q2: How does Express.js differ from using native Node.js HTTP module?
Building an API with native Node.js requires manual parsing of request streams, URL string splitting, and explicit header management. Express encapsulates these operations into clean higher-level interfaces.
Native Node.js vs Express.js Comparison
Routing:
Manual IF/ELSE or Regex matching vs Declarative `app.get()`, `app.post()`Express provides dedicated routing abstractions per HTTP method.
Body Parsing:
Manual Buffer concatenation (`req.on('data')`) vs Built-in `express.json()`Native HTTP requires stream buffering; Express parses payload bodies natively.
Middleware Support:
Custom pipeline logic vs Built-in `app.use()` pipeline architectureExpress utilizes standardized middleware functions with
(req, res, next) signatures.Key Takeaways
- Express drastically cuts boilerplate code compared to raw Node.js HTTP servers.
- Native
reqandresobjects are extended by Express rather than replaced.