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Version: 5.18.17

Google Cloud Platform Settings

The app must be registered to the Google Console to use Google Login with Android.

If the app is registered, skip to [Create a project in Google Cloud Platform] (#2-Create-a-project-in-Google-Cloud-Platform).

1. Register the application to Google Play​

Google Play Console > Create app > Release > Production or (Open, Closed, Internal) testing > Create new release

  • 1) From Google Play App Signing, click Continue to register the app signature and issue the App Signing Key Certificate.
  • 2) Upload APK or App Bundle to issue Upload Key Certificate.
  • 3) The issued app signature can be checked from Setup > App Integrity on the left. It is later used to register the app to Google Cloud Platform.

2. Create a project on Google Cloud Platform​

  • 2) Enter the desired name for the project and click CREATE.
  • 3) After selecting the project, click APIs and services > OAuth consent screen in the sidebar.
  • 4) Set User Type as External.
  • 5) Enter the required fields (App name, User support email, and Developer contact information) and click SAVE AND CONTINUE.
  • 6) In Scopes, skip all the fields and click SAVE AND CONTINUE.
  • 7) Add an account that will test the 'Sign in with Google' function.

3. Create client IDs for Android authentication​

To use the 'Sign in with Google' function in Android, you must create the following three client IDs.

  • Android client ID created with an app signing key
  • Android client ID created with an upload key
  • Web client ID that will send a request from the SDK to the server

3-1. Create an Android client ID using an app signing key​

  1. Select Create credentials > OAuth client ID.

  1. Set Application type to Android and enter the Package name of the app to upload to Google Console.

  2. From Google Console - Selected app - Settings - App integrity, copy the SHA-1 certificate fingerprint of the App signing key certificate and paste it into SHA-1 certificate fingerprint.

  1. Click CREATE.

3-2. Create an Android client ID using an upload key​

  1. Select Create credentials > OAuth client ID.

  1. Set Application type to Android and enter the Package name of the app to upload to Google Console.

  2. From Google Console - Selected app - Settings - App integrity, copy the SHA-1 certificate fingerprint of the upload key certificate and paste it into SHA-1 certificate fingerprint.

  1. Click CREATE.

3-3. Create a Web client ID to use in Unity​

  1. Select Create credentials > OAuth client ID.
  1. Set the Application type to Web application.
  1. Click CREATE.

4) Copy the Client ID for web​

Copy the client ID of the web client created in Step 3-3. The value is used as an argument for webClientId of BackendFederation.Android.GoogleLogin() in Android Google Login Code.

Configure through the BACKND ToolKit Inspector​

After installing the BACKND Google Login SDK, you can enter the Web Client ID in the Android field by clicking the upper taskbar of Unity > TheBackend > ToolKit > GoogleLogin Settings.