This is a first approach to SAP Fundamentals with React.js. For this I have chosen re-design user account of Paypal and develop an application with fiori-fundamentals framework.
Demo:
https://paypal-fiori.netlify.com/
- Application boilerplate with create-react-app
 - Application components by fundamental-react library
 
- fundamental-react
 - gulp
 - gulp-sass
 - gulp-watch
 - node-sass
 - react
 - react-dom
 - react-scripts
 - sass-loader
 - react-router-dom
 
- node.js
 - npm
 - Yarn
 - React.js
 - Gulp.js
 - SASS
 
- Github
 - Netlify
 
- Learn how to work in SAP Fiori 3.0 with react.js
 - Create a custom theme with fiori fundamentals framework
 
- This application isn't an official Paypal application.
 - I'm not working for Paypal or receiving money of them.
 
I'm doing this as example just to learn more about fiori-fundamentals framework.