Js coming

Server.js
For backend





const express = require('express');
const http = require('http');
const { Server } = require('socket.io');

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

let currentNumber = "0000000000"; // Default 10-digit number

// Serve static files (Frontend)
app.use(express.static('public'));

// API to update the number from admin side
app.post('/update-number/:number', (req, res) => {
  const newNumber = req.params.number;

  if (/^\d{10}$/.test(newNumber)) {
    currentNumber = newNumber;
    io.emit('numberUpdated', currentNumber); // Emit update to frontend
    return res.status(200).json({ message: "Number updated successfully!" });
  } else {
    return res.status(400).json({ error: "Invalid number. Must be 10 digits." });
  }
});

// Start the server
const PORT = 3000;
server.listen(PORT, () => {
  console.log(`Server running on http://localhost:${PORT}`);
});