import express, { Application } from "express"; import Server from "./src/index"; const app: Application = express(); const server: Server = new Server(app); const PORT: number = process.env.PORT ? parseInt(process.env.PORT, 10) : 8080; app .listen(PORT, "localhost", function () { console.log(`Server is running on port ${PORT}.`); }) .on("error", (err: any) => { if (err.code === "EADDRINUSE") { console.log("Error: address already in use"); } else { console.log(err); } });