Create a Google client

To use Google as an IdP, visit Google’s API Dashboard, and follow these steps:

In the left navigation, click Credentials.
Click CREATE CREDENTIALS > OAuth client ID.

For an Android app:
1. Select Android as the value for Application Type.
2. In the Name field, type a name for this application.
3. Enter the package name from the AndroidManifest.xml file.
4. Enter the SHA-1 certificate fingerprint.
  
  Use the following command to get the fingerprint:
  keytool -keystore path-to-debug-or-production-keystore -list -v
5. Click Create.
For an iOS app:
1. Select iOS as the value for Application Type.
2. In the Name field, type a name for this application.
3. Enter the bundle id as listed in the app’s Info.plist file.
4. If the app is listed in the Apple App Store, enter the Apple ID of the app.
5. Enter the Team ID that Apple assigned to your team.
6. Click Create.

For a JavaScript app:
1. Select Web application as the value for Application Type.
2. In the Name field, type a name for this application.
3. Under Authorized JavaScript Origins, add the origins of the apps that use Google as an IdP.
  
  Origins include scheme, domain, and port.
4. Under Authorized redirect URIs, add the full redirect URLs of your apps that handle the redirection from Google after user login.
5. Click Create.

Native Android social authentication

To enable native Android social authentication, you must create two OAuth clients in the Google API console:

Create an OAuth client ID for the Android application.

See the step for an Android app above.
Create an OAuth client ID for AM to communicate with the Google APIs.

See the step for a JavaScript app above.