server.js

const express = require('express');
const http = require('http');
const socketIo = require('socket.io');

const app = express();
const server = http.createServer(app);
const io = socketIo(server);

let visitorCount = 0;

// Simple endpoint to verify server is running
app.get('/', (req, res) => {
    res.json({ message: 'WebSocket server is running', visitorCount });
});

io.on('connection', (socket) => {
    visitorCount++;
    io.emit('visitorCount', visitorCount); // Broadcast updated count to all clients

    socket.on('disconnect', () => {
        visitorCount--;
        io.emit('visitorCount', visitorCount); // Broadcast updated count
    });
});

server.listen(3000, () => {
    console.log('Server running on http://localhost:3000');
});