What is MongoDB Atlas?
MongoDB Atlas is a fully managed cloud database service. It handles deployment, scaling, backups, and security so you can focus on building your application.
- Free tier with 512MB storage — perfect for learning and small projects
- Deploy on AWS, Google Cloud, or Azure
- Automatic backups and point-in-time recovery
- Built-in monitoring and alerts
- Network security with IP whitelisting and VPC peering
- Global clusters for worldwide data distribution
Connecting to Atlas
After creating a cluster on Atlas, get your connection string and use it in your application.
Example
// Connection string from Atlas dashboard
const uri = 'mongodb+srv://username:password@cluster0.xxxxx.mongodb.net/mydb?retryWrites=true&w=majority';
// With Mongoose
const mongoose = require('mongoose');
mongoose.connect(uri)
.then(() => console.log('Connected to Atlas!'))
.catch(err => console.error(err));
// With native driver
const { MongoClient } = require('mongodb');
const client = new MongoClient(uri);
await client.connect();
const db = client.db('mydb');