Simple NodeJS-Express starting file

express-entry.ts

import cors from "cors";
import express, { NextFunction, Request, Response } from "express";
import helmet from "helmet";
import { errorHandler } from "./complements/helpers/errorHandler";
import { userRouter } from "./modules/users/users.router";

// Initial Express configuration
const app = express();
app.use(express.json());
app.use(helmet());
app.use(cors());
app.options("*", cors);

// Entry point used for health checks or other purposes
app.get("/", (_req: Request, res: Response, next: NextFunction) => {
  res.status(200).json({ success: true });
  next();
});

// Users module router
app.use("/users", userRouter);

// Custom error handler middleware.
app.use(errorHandler);

// Start server listening
app.listen(Number(serverConf.port), "0.0.0.0", (): void => {
  console.log("Server running on port", serverConf.port);
});


export { app };