npm i -y
npm i --save express
npm i -g nodemon
npm i --save-dev nodemon
npm start
> [nodemon] restarting due to changes...
npm i --save pm2
npm run production
npx pm2 monit
npx pm2 status
npx pm2 restart
npx pm2 show 0
npx pm2 restart 0
npx pm2 kill
"package.json": {
"production": "pm2 start index.js --name appx-backend" }
npm install -g node-dev
npm install node-dev --save
npx node-dev index.js
npm i --save body-parser