How do you connect Node.js with MySQL/PostgreSQL?

Short answer: You can use native drivers or ORMs like Sequelize. Example with MySQL native driver: const mysql = require('mysql2/promise'); async function connect() { const connection = await mysql.createConnection({ host: 'localhost', user: 'root', database: 'test' }); const [rows] = await connection.execute('SELECT * FROM users'); console.log(rows); }

Example code

You can use native drivers or ORMs like Sequelize. Example with MySQL native driver: const mysql = require('mysql2/promise');
async function connect() { const connection = await mysql.createConnection({ host: 'localhost', user: 'root', database: 'test' }); const [rows] = await connection.execute('SELECT * FROM users'); console.log(rows); }

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.