server.js

const dotenv = require('dotenv');
const mongoose = require('mongoose');

process.on('uncaughtException', err => {
  console.log(err.name, err.message);
  console.log('UNCAUGHT EXCEPTION 💥 REJECTED REJECTED REJECTED');
  process.exit(1);
});

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

dotenv.config({ path: './config.env' });
const DB = process.env.DATABASE.replace(
  '<PASSWORD>',
  process.env.DATABASE_PASSWORD
);

mongoose
  .connect(DB, {
    useNewUrlParser: true,
    useCreateIndex: true,
    useUnifiedTopology: true,
    useFindAndModify: false,
  })
  .then(() => {
    // console.log(con.connections);
    console.log('DB connection established');
  });

// console.log(app.get('env'))
// console.log(process.env)
//* 4) Start the server
const port = process.env.PORT || 3000;
const server = app.listen(port, (req, res) => {
  console.log(`Listening at port ${port}`);
  console.log(`Currently in: ${process.env.NODE_ENV}`);
});

process.on('unhandledRejection', err => {
  console.log(err.name, err.message);
  console.log('UNHANDLED REJECTION 💥 REJECTED REJECTED REJECTED');
  server.close(() => {
    process.exit(1);
  });
});

process.on('SIGTERM', () => {
  console.log('👋 SIGTERM RECEIVED. Shutting down gracefully');
  server.close(() => {
    console.log('💥 Process terminated');
  });
});