How do you connect Node.js to MongoDB?

Short answer: You typically use the MongoDB Node.js driver or an ODM like Mongoose.

Explain a bit more

Basic connection example with native driver: const { MongoClient } = require('mongodb'); async function connect() { const uri = 'mongodb://localhost:27017/mydatabase'; const client = new MongoClient(uri); try { await client.connect(); console.log('Connected to MongoDB'); const db = client.db('mydatabase'); // Use `db` to query collections } catch (err) { console.error(err); } finally { await client.close(); } } connect();

Example code

You typically use the MongoDB Node.js driver or an ODM like Mongoose. Basic connection example with native driver: const { MongoClient } = require('mongodb');
async function connect() {
const uri = 'mongodb://localhost:27017/mydatabase';
const client = new MongoClient(uri); try { await client.connect(); console.log('Connected to MongoDB'); const db = client.db('mydatabase'); // Use `db` to query collections } catch (err) { console.error(err); } finally { await client.close();
}
} connect();

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.