Implement Native Apple Sign-In with Auth0 in React Native

Knowledge Articles
1

Overview

This article guides developers on how to implement native Apple Sign-In in a React Native application. Implement Apple Native Sign-In directly using the @invertase/react-native-apple-authentication package and Auth0’s Token Exchange flow via the react-native-auth0 SDK. This avoids using a web browser and keeps the authentication flow fully native. By using a native implementation, the sign-in flow remains seamless and browser-free, offering a more integrated user experience.

Acceptance Criteria:

  • Apple Sign-In is integrated using the @invertase/react-native-apple-authentication package.
  • Identity token from Apple is exchanged using auth0.auth.exchangeNativeSocial.
  • Auth0 credentials are securely stored using auth0.credentialsManager.
  • A fallback message is shown on unsupported platforms (e.g., Android or iOS < 13).
  • Proper Auth0 configuration is verified and documented.``

Dependencies to Install:

npm install react-native-auth0

npm install @invertase/react-native-apple-authentication

Applies To

  • React Native Apps

Cause

When integrating Apple Sign-In with Auth0, using a web-based login flow can lead to poor UX and potential platform limitations. A fully native implementation avoids these issues and meets Apple’s guidelines more closely.

Solution

Implementation Steps:

  1. Install & Configure Dependencies

    • Install required packages listed above.
    • Configure Apple Sign-In in Xcode (entitlements, capabilities).
    • Ensure Apple Developer and Auth0 dashboard configurations are complete.

  2. Check Apple Sign-In Support

const isAppleSignInAvailable = Platform.OS === 'ios' && 
  appleAuth.isSupported && 
  parseInt(Platform.Version, 10) >= 13;

  1. Sign-In Flow:

    • Use Apple’s SDK to get identityToken.
    • Exchange it with Auth0 using:
auth0.auth.exchangeNativeSocial({
  subjectToken: identityToken,
  subjectTokenType: 'http://auth0.com/oauth/token-type/apple-id-token',
  scope: 'openid profile email',
  userProfile: JSON.stringify({
    name: { firstName, lastName },
    email
  }),
});

  1. Post-authentication:

    • Store credentials via auth0.credentialsManager.saveCredentials.
    • Update UI and user state accordingly.