socket.io-express-session

const express = require('express'); const { createServer } = require('http'); const session = require('express-session'); const { Server } = require('socket.io'); const ioSession = require('socket.io-express-session'); // The package being documented const app = express(); const httpServer = createServer(app); const io = new Server(httpServer); // IMPORTANT: Use a production-ready session store, not MemoryStore for production. const sessionMiddleware = session({ secret: 'my-super-secret-key-that-should-be-long-and-random', resave: false, saveUninitialized: true, // store: new (require('connect-redis')(session))({ client: require('redis').createClient() }) }); app.use(sessionMiddleware); // Integrate express-session with Socket.IO io.use(ioSession(sessionMiddleware)); io.on('connection', (socket) => { console.log('A user connected:', socket.id); // Access the session from the handshake object const userSession = socket.handshake.session; if (userSession) { console.log('Session data on connection:', userSession); userSession.views = (userSession.views || 0) + 1; console.log('Updated views:', userSession.views); // In older packages, you might need to manually save if 'autoSave' isn't configured/available. // userSession.save(); // Not explicitly mentioned as needed by this package } socket.on('disconnect', () => { console.log('User disconnected:', socket.id); }); }); app.get('/', (req, res) => { req.session.pageViews = (req.session.pageViews || 0) + 1; res.send(`Hello from Express! Page views: ${req.session.pageViews}`); }); const PORT = process.env.PORT || 3000; httpServer.listen(PORT, () => { console.log(`Server running on http://localhost:${PORT}`); });