create-react-app firebase yarn add firebase redux react-redux react-router-dom readux-devtools-extension yarn start link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/css/bootstrap.min.css"> script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script> </br /> script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.7/js/bootstrap.min.js"></script> https://firebase.google.com/ https://console.firebase.google.com/?pli=1 new database realtime database, rules, true yarn add lodash