Stratkit Apple Sign-In

Native Apple Sign-In wrapper for Unity (iOS only). Provides an async API to authenticate users via Sign in with Apple and retrieve an identity token for backend verification.

Supported Platforms

Platform	SDK	Min Version
iOS	AuthenticationServices (built-in)	iOS 13.0+
Editor	Mock provider (returns test token)	-

Android and other unsupported platforms use the Editor mock provider with a warning log.

Setup

1. Apple Developer Portal

Enable "Sign in with Apple" capability in your App ID configuration at Apple Developer.

No client IDs or secrets are needed on the client side — Apple uses the app's bundle identifier automatically.

2. Configuration Asset

Create an AppleSignInConfiguration ScriptableObject:

Right-click in Project > Create > Stratkit > Apple Sign-In > AppleSignInConfiguration

Options: - RequestEmail — request the user's email address (default: true) - RequestFullName — request the user's full name (default: true)

Note: Apple only returns email and full name on the first sign-in. The backend must persist these values.

3. Initialize at Startup

Call Configure() once during bootstrap, before any sign-in attempt:

AppleSignInService.Configure(appleSignInConfiguration);

4. Sign In

try {
    AppleSignInResult result = await AppleSignInService.SignInAsync();
    string idToken = result.IdToken;
    // Send idToken to your backend for verification
} catch (AppleSignInException e) {
    // Handle error (e.ErrorCode for specific failure reason)
}

Build Post-Processing

The AppleSignInBuildProcessor automatically handles iOS builds:

• Adds AuthenticationServices.framework to the Xcode project
• Adds "Sign in with Apple" capability via ProjectCapabilityManager
• Creates the entitlements file with com.apple.developer.applesignin

API Reference

Type	Description
AppleSignInService	Static entry point — Configure() and SignInAsync()
AppleSignInResult	Result containing IdToken, AuthorizationCode, UserId, Email, FullName, Nonce
AppleSignInConfiguration	ScriptableObject with scope options (email, full name)
AppleSignInException	Exception with ErrorCode (Cancelled, Failed, InvalidResponse, etc.)