server.js

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

//handling uncaught exceptions
process.on('uncaughtException', (err) => {
  console.log(err);
  process.exit(1);
});

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

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

//initializing mongoose and mongodb
let databaseURI = '';
console.log(process.env.NODE_ENV);
if (process.env.NODE_ENV === 'development')
  databaseURI = process.env.DATABASE_LOCAL;
else if (process.env.NODE_ENV === 'production')
  databaseURI = process.env.DATABASE_PROD;
else {
  databaseURI = process.env.DATABASE_PROD;
}
console.log(databaseURI);
mongoose
  .connect(databaseURI, {
    useNewUrlParser: true,
    useCreateIndex: true,
    useFindAndModify: false,
    useUnifiedTopology: true,
  })
  .then(() => {
    console.log('DB connected Successfully');
  });

const port = process.env.PORT;

//spinning up the server
const server = app.listen(port, () => {
  console.log(
    `${process.env.NODE_ENV} server is up and running at port ${port}`
  );
});

//handling unhandled rejection
process.on('unhandledRejection', (err) => {
  console.log(err);
  // server.close(() => {
  //   process.exit(1);
  // });
});