Firebase

Go to firebase console and create project and choose a name.

Android#

1. Add two android apps: for admin and user .

2. For the user app, you need to generate a signing certificate for google authentication. Go to CMD and type: keytool -list -v -alias androiddebugkey -keystore %USERPROFILE%\.android\debug.keystore And replace %USERPROFILE% with your Windows username.

3. Download google-services.json file.

4. Copy and paste the file into android/app.

5. After these steps, you will have two apps: for admin and user.

IOS#

1. Add two iOS apps: for admin and user.

2. Download GoogleService-Info.plist file.

3. Copy and paste the file into ios/Runner.

4. Add these files using XCODE(open Runner.xcodeproj).