How do I configure session store in Express.js?

How do I configure session store in Express.js?

To configure a session store in Express.js, you can use the express-session middleware along with a store like connect-mongo or connect-redis. Would you like a code example?

Yes, please provide a code example using MongoDB.

Sure! First, install the necessary packages: npm install express express-session connect-mongo mongoose. Then, you can set it up like this:

const express = require('express');
const session = require('express-session');
const MongoStore = require('connect-mongo');
const mongoose = require('mongoose');

const app = express();

mongoose.connect('mongodb://localhost:27017/mydatabase', { useNewUrlParser: true, useUnifiedTopology: true });

app.use(session({
  secret: 'your-secret-key',
  resave: false,
  saveUninitialized: false,
  store: MongoStore.create({
    mongoUrl: 'mongodb://localhost:27017/mydatabase'
  })
}));

app.listen(3000, () => {
  console.log('Server is running on port 3000');
});

This will set up a session store using MongoDB.

What are the benefits of using a session store?

Using a session store allows you to persist user sessions across server restarts, manage session data more efficiently, and scale your application by sharing session data across multiple instances.