Basic Express App

index.js

const express = require('express');
const cors = require('cors');
const volleyball = require('volleyball');

require('dotenv').config();

const app = express();
const port = process.env.PORT || 3030;
// Built in 'Body Parser' middleware for express
app.use(express.json());
app.use(express.urlencoded({ extended: true }));
app.use(volleyball);
app.use(cors());

app.get('/', (req, res) => {
  res.json({
    message: 'Welcome to the backend ✨🎉🌈! 👋 Welcome to the main route!'
  });
});

const notFound = (req, res, next) => {
  res.status(404);
  const error = new Error('Not Found - ' + req.originalUrl);
  next(error);
}

const errorHandler = (err, req, res, next) => {
  res.status(res.statusCode || 500);
  res.json({
    message: err.message,
    stack: err.stack
  });
}

app.use(notFound);
app.use(errorHandler);

app.listen(port, (req, res) => console.log(`Backend running on port ${port}`));