Setup Firebase with a Flutter app

Add Firebase to your Flutter app

1. Create a Firebase project
2. Register your app with Firebase
   • Create a Firebase android app inside the Firebase project
   • Add apps’s package name
   • Add app nickname
   • Add SHA-1 fingerprint ( cd android && ./gradlew signingReport )
3. Add a Firebase configuration file
   • Download the google_services.json file
   • Copy it to the directory /android/app
4. Configure the gradle files
   • @project_level_gradle : Add Google’s Maven repository ( in buildscript and in allprojects sections )
   • @project_level_gradle : Add google services plugin ( classpath ‘com.google.gms:google-services:4.3.4’ )
   • @app_level_gradle: Add apply plugin: ‘com.google.gms.google-services’ at the top
   • @app_level_gradle: Add dependency (optional)
     implementation platform(‘com.google.firebase:firebase-bom:25.12.0’) implementation ‘com.google.firebase:firebase-analytics-ktx’
   • @app_level_gradle: Enable multidex

Add FlutterFire plugins

1. Open your pubspec.yaml file.
2. Add the plugin for Firebase Core Flutter SDK: firebase_core: ^0.5.0+1
3. Add plugin for Firebase Authentication: firebase_auth: ^0.18.1+2
4. Add plugin for Firebase cloud firestore: cloud_firestore: ^0.14.3
5. Get the dependencies. Run command: flutter pub get