express-http-proxy-2

import express from 'express'; import proxy from 'express-http-proxy-2'; const app = express(); const PORT = 3000; // Configure the proxy middleware for requests to '/api' // These requests will be forwarded to 'https://jsonplaceholder.typicode.com' // and rewritten to remove '/api' from the path. app.use('/api', proxy('https://jsonplaceholder.typicode.com', { proxyReqPathResolver: (req) => { // Example: change /api/users to /users const originalPath = req.url; const updatedPath = originalPath.replace('/api', ''); console.log(`Proxying request: ${originalPath} -> ${updatedPath}`); return updatedPath; }, userResDecorator: (proxyRes, proxyResData) => { // Optional: modify the response data from the proxied server console.log('Received response from proxy target.'); const data = JSON.parse(proxyResData.toString('utf8')); // Add a custom header to the response indicating it was proxied proxyRes.headers['x-proxied-by'] = 'express-http-proxy-2'; return JSON.stringify({ ...data, proxied: true }); } })); // A simple health check route for the Express server itself app.get('/health', (req, res) => { res.send('Server is healthy!'); }); app.listen(PORT, () => { console.log(`Express server listening on http://localhost:${PORT}`); console.log('Test proxy: curl http://localhost:3000/api/todos/1'); console.log('Test local: curl http://localhost:3000/health'); });