Listener script with node to test server port opening

listener.js

const http = require("http");

const host = process.argv.slice(2)[0];
const port = process.argv.slice(2)[1];

const requestListener = function (req, res) {
    res.writeHead(200);
    res.end("Success!!");
};

const server = http.createServer(requestListener);
server.listen(port, host, () => {
    console.log(`Server is running on http://${host}:${port}`);
});