What is the difference between app.use() and app.get()?

Short answer: Method Purpose app.use () Middleware for all requests app.get () Handle only GET requests 📌

Example code

app.use(authMiddleware); // Runs on all routes app.get('/data', handler); // Runs only for GET /data

Real-world example (ShopNest)

A ShopNest BFF in Node.js aggregates catalog and price APIs for the React storefront.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.