npm init npm install ejs express npm i passport passport-google-oauth20 npm i cookie-session npm install passport-facebook npm install passport-twitter npm install passport-linkedin-oauth2 npm install connect-flash npm i bcryptjs https://cloud.mongodb.com/v2/5f2dc7e27bbe0d32cd13ed3d#metrics/replicaSet/5f2dc90e5b42005017cf5741/explorer/test/myusers/find http://www.passportjs.org/packages/