http-proxy-3

import * as http from 'node:http'; import { createProxyServer, type ProxyServerOptions } from 'http-proxy-3'; // Create a target HTTP server const targetServer = http.createServer((req, res) => { console.log(`Target received: ${req.method} ${req.url}`); res.writeHead(200, { 'Content-Type': 'text/plain' }); res.end('Hello from the target server!'); }); targetServer.listen(9000, () => { console.log('Target server listening on http://localhost:9000'); }); // Create a basic HTTP proxy server const proxyOptions: ProxyServerOptions = { target: 'http://localhost:9000', ws: true // Enable websocket proxying }; const proxy = createProxyServer(proxyOptions); // Handle proxy errors proxy.on('error', (err, req, res) => { console.error('Proxy Error:', err); if (res && res.writeHead) { res.writeHead(500, { 'Content-Type': 'text/plain' }); res.end('Something went wrong with the proxy.'); } }); // Create a proxy listening server const proxyServer = http.createServer((req, res) => { console.log(`Proxying request: ${req.method} ${req.url}`); proxy.web(req, res); }); proxyServer.on('upgrade', (req, socket, head) => { console.log(`Proxying websocket upgrade: ${req.url}`); proxy.ws(req, socket, head); }); proxyServer.listen(8000, () => { console.log('Proxy server listening on http://localhost:8000'); console.log('Test with: curl http://localhost:8000'); console.log('Test websockets with a client connecting to ws://localhost:8000'); });