React, Node, MongoDB application which: Authenticates Users Creates & Gets (Questions & Answers) Unit Install Install MongoDB cd backend => npm i cd frontend => npm i Run & Usage cd backend => node src cd frontend => npm start Links https://auth0.com/blog/react-tutorial-building-and-securing-your-first-app/ https://appdividend.com/2018/07/18/react-redux-node-mongodb-jwt-authentication/