server.js

const dotenv = require('dotenv');
const app = require('./app');
const mongoose = require('mongoose');

process.on('uncaughtException', (err) => {
  // console.log('UNCAUGHT EXCEPTION! Shutting down');
  // console.log(err.name, err.message);
  process.exit(1);
});

dotenv.config({ path: './config.env' });

const DB = process.env.DATABASE.replace(
  '<PASSWORD>',
  process.env.DATABASE_PASSWORD
);

mongoose.connect(DB, {}).then((con) => {
  // console.log('DB Connection Successful');
});

const port = process.env.PORT;
const server = app.listen(port, () => {
  console.log(`App running on port ${port}...`);
});

// Unhandled Rejection of Promises
process.on('unhandledRejection', (err) => {
  // console.log(err.name, err.message);
  console.log('UNHANDLED REJECTION! Shutting down');
  server.close(() => {
    process.exit(1);
  });
});