first fire up express server 
install express ---npm install express

interpolation - putting comma we can just embad directly `` backticks like this

install nodemon -----npm install nodemon
and tehn go to package.json and in script write 
"start":"nodemon index.js"
now when you write npm start in terminal then it will work the same 

check git video beause currently i am not using it

set up ejs engine
npm install ejs
npm install express-ejs-layouts
 

install cookie parser
npm install cookie-parser

now do manual local authentication on another branch and then after doing work on it 
go to git master branch

authentication using passport js
npm install passport
npm install passport-local

npm install express-session

npm install node-sass-middleware