server-ready

const serverReady = require('server-ready'); const http = require('http'); const port = 3001; // Simulate a server that takes a moment to start const server = http.createServer((req, res) => { res.writeHead(200, { 'Content-Type': 'text/plain' }); res.end('Server is ready!\n'); }); // Start the server after a short delay setTimeout(() => { server.listen(port, () => { console.log(`Simulated server started on port ${port}`); }); }, 1000); // Use server-ready to detect when the port is open console.log(`Waiting for server to be ready on port ${port}...`); serverReady(port, (err) => { if (err) { console.error(`Error: ${err.message}`); } else { console.log(`Port ${port} is open or has just opened.`); // Make a request to the ready server http.get(`http://localhost:${port}`, (res) => { let data = ''; res.on('data', (chunk) => data += chunk); res.on('end', () => { console.log(`Received from server: ${data.trim()}`); server.close(() => console.log('Server closed.')); }); }).on('error', (e) => { console.error(`HTTP request error: ${e.message}`); server.close(() => console.log('Server closed due to HTTP error.')); }); } }); // Optional: Set a custom timeout for server-ready // serverReady.timeout = 5000; // 5 seconds