how to proxy POST

[branaway]

My way of using the proxy is not returning post result from upstream server. The server has processed the request and has returned something that the proxy never pushed back the client. Can someone review the code below:

function startProxy() {	const app = express()	// Set view engine	app.set('view engine', 'ejs')	app.set('views', path.join(__dirname, 'views'))	// Middleware to Proxy Requests, including WebSockets	app.use(async (req, res, next) => {	const urlPath = req.path.split('/')[1];	if (!urlPath) return next();	const server = serverManager.getRunningServers().find(s => s.name === urlPath);	if (server) {	const target = `http://localhost:${server.port}`;	console.log(`[proxy] for "${server.name}" targeting ${target}`);	if (!proxyCache.has(server.name)) {	console.log(`Creating proxy middleware for "${server.name}" targeting ${target}`);	const proxy = createProxyMiddleware({	target,	changeOrigin: true,	ws: true,	pathRewrite: {	// [`^/${server.name}`]: '', // Uncomment if needed	},	timeout: 5000, // Time to wait before timing out	proxyTimeout: 5000, // Timeout for the target server response	selfHandleResponse: false, // Proxy should handle response piping	});	proxyCache.set(server.name, proxy);	}	return proxyCache.get(server.name)(req, res, next);	}	else {	next();	}	});	// Middleware to parse JSON bodies	// app.use(bodyParser.json())	// Dashboard Route	app.get('/', (req, res) => {	const servers = serverManager.getRunningServers()	res.render('dashboard', { servers })	})	// Stop Server Route	app.post('/stop/:name', async (req, res) => {	const { name } = req.params	serverManager.stopServer(name)	res.sendStatus(200)	})	// Restart Server Route (Optional)	app.post('/restart/:name', async (req, res) => {	const { name } = req.params	await serverManager.restartServer(name)	res.sendStatus(200)	})	// Start Proxy Server	const server = app.listen(PROXY_PORT, () => {	console.log(`Proxy server is running at http://localhost:${PROXY_PORT}`)	})	server.on('upgrade', (req, socket, head) => {	const urlPath = req.url?.split('/')[1];	console.debug('in upgrade on url:', req.url, urlPath);	if (!urlPath) {	socket.destroy();	return;	}	const serverInstance = serverManager.getRunningServers().find(s => s.name === urlPath);	if (serverInstance) {	const target = `http://localhost:${serverInstance.port}`;	console.log(`Proxying WebSocket for "${serverInstance.name}" to ${target}`);	// Use cached proxy if available, otherwise create and cache it	const proxy = createProxyMiddleware({	target,	changeOrigin: true,	ws: true,	pathRewrite: {	[`^/${serverInstance.name}`]: '',	},	});	// Use the cached proxy for the WebSocket upgrade	proxy.upgrade(req, socket as any, head);	} else {	console.debug(`No server instance found for path: ${urlPath}`);	socket.destroy();	}	});	return server }