React Native + Firebase Database | SELECT | INSERT | UPDATE | DELETE | 100% Work ! https://www.youtube.com/watch?v=p0hCPHHlxjk&feature=youtu.be

Getting started with Firebase Authentication on React Native https://blog.invertase.io/getting-started-with-firebase-authentication-on-react-native-a1ed3d2d6d91

Documentation: https://rnfirebase.io/docs/v3.3.x/auth/reference/auth

A Complete Firebase in React Authentication Tutorial : https://www.robinwieruch.de/complete-firebase-authentication-react-tutorial/

React-Native Email Authentication with Firebase: https://medium.com/dailyjs/react-native-email-authentication-with-firebase-4be20142b0a9