Firebase for the apps

The apps ship with placeholder Firebase settings. Connect all three to the same Firebase project your server uses (Firebase). Set your app IDs first (Rename & rebrand).

1. Install the tools (once)

npm install -g firebase-tools
firebase login
dart pub global activate flutterfire_cli

2. Connect each app

1. In the app’s folder:

   cd apps/customer
   flutterfire configure --project=your-firebase-project-id

2. When asked which platforms, choose android and ios. FlutterFire reads your app IDs, registers the apps in Firebase, and writes:
   • lib/firebase_options.dart
   • android/app/google-services.json
   • ios/Runner/GoogleService-Info.plist
3. Repeat in apps/seller and apps/delivery.

3. Turn on what the apps use

In the Firebase console for your project:

• Authentication → Sign-in method: Phone, Google, and Apple if you offer it.
• Cloud Messaging: on by default; iOS needs your APNs key — see Push notifications.
• Crashlytics (customer app, optional): open it once so crash reports start arriving.

4. iOS: Google and phone sign-in

Each app’s ios/Runner/Info.plist has placeholders FlutterFire doesn’t fill. Open the app’s new GoogleService-Info.plist and copy:

In Info.plist	Replace with
GIDClientID → YOUR_IOS_CLIENT_ID.apps.googleusercontent.com	its CLIENT_ID
URL scheme com.googleusercontent.apps.YOUR_IOS_CLIENT_ID	its REVERSED_CLIENT_ID
URL scheme app-1-000000000000-ios-0000000000000000000000	your iOS app’s Encoded App ID (Firebase console → Project settings → your iOS app)

5. Android: phone sign-in fingerprints

Phone and Google sign-in on Android need your signing key’s fingerprints in Firebase:

1. Print them (debug key, and later your release key):

   cd android
   ./gradlew signingReport

2. Firebase console → Project settings → your Android app → Add fingerprint → paste the SHA-1 and SHA-256. Add both the debug and release ones.
3. Download the updated google-services.json and replace android/app/google-services.json.

Caution

Google Play re-signs your app. After your first upload, also add the App signing key SHA-1 and SHA-256 from Play Console → Setup → App signing, or phone sign-in fails for Play installs.