import { server } from "./server.js"; import { fileURLToPath } from "url"; import path from "path"; const [, mainFileName, port] = process.argv; if (mainFileName === fileURLToPath(import.meta.url)) { if (!port) { const fileName = path.basename(fileURLToPath(import.meta.url)); console.error(` Error: Missing port number to run on Usage: node ${fileName} Example: node ${fileName} 3000`); } else { server.listen(parseInt(port)); } }