Implementing Google Sign-In using Firebase with React Native.
1. Install react-native google-signin package npm i @react-native-community/google-signin 2. Firebase Configuration Now, we need to create Firebase Project first. You can open the link here to open Firebase Console. After that, page like this will be displayed and just click create a project button. Fill the requirements with your project name, or you can just use your app’s name. Note: To find Android package name, you can find it from the file here ( yourProject -> android -> app -> src -> main -> java -> yourPackageName -> yourAppName -> MainActivity.java ). The word after package is your app package name. Next, download google-services.json , it will be required when we setup in Android folder later. Now open project setting from firebase, we will set the SHA-1 from here, click Project Overview then Project settings. You can get your SHA-1 fingerprint just by follow this guide (first answer) here . If you don’t have...