In this tutorial, we are building a Post Scheduler for Facebook pages. We’ll start off by creating an Express.js web server and use Passport.js to authenticate users with Facebook. After setting up authentication, we’ll build a react app to provide users with an interface to schedule text and images posts for Facebook pages. Getting Started Let’s start by initializing a package.json file by running npm init in your working directory and add these dependencies. "dependencies": { "body-parser": "^1.13.2", "config": "^1.30.0", "connect-ensure-login": "^0.1.1", "cookie-parser": "^1.3.5", "ejs": "^2.3.3", "express": "^4.13.1", "express-fileupload": "^0.4.0", "express-session": "^1.11.3", "mongoose": "^5.1.4", "morgan": "^1.6.1", "passport": "^0.2.