const express = require('express');
const app = express();
// Middleware to check the request origin
const checkRequestOrigin = (req, res, next) => {
const allowedDomain = 'yourdomain.com'; // Replace with your domain
const requestOrigin = req.get('Origin');
if (requestOrigin && requestOrigin === allowedDomain) {
res.header('Access-Control-Allow-Origin', requestOrigin);
next();
} else {
res.status(403).json({ error: 'Forbidden: Invalid request origin.' });
}
};
// Apply the middleware to all routes
app.use(checkRequestOrigin);
// Your routes and other middleware can be defined below this line
// Example route
app.get('/', (req, res) => {
res.json({ message: 'Welcome to your Express API!' });
});
// Replace 3000 with the desired port number
const port = 3000;
// Start the Express server
app.listen(port, () => {
console.log(`Server is running on port ${port}`);
});