Introduction

React Native Google Credential provides one TypeScript API for acquiring Google ID tokens from Android, iOS, and web.

The package currently wraps:

• Android Credential Manager with Google ID credentials.
• GoogleSignIn on iOS.
• Google Identity Services on web.
• An optional Expo config plugin for iOS setup.

The core package stops at credential acquisition. It returns a Google ID token and profile metadata; your app or auth provider is responsible for exchanging or verifying that token.

Why this package exists

Google sign-in is similar across platforms, but each platform names and exposes the flow differently:

• Android calls the Web OAuth client ID a server client ID.
• iOS uses both an iOS client ID and a server client ID.
• Web validates the exact JavaScript origin for the OAuth Web client ID.

This package gives application code a clearer model:

const credential = await signInWithGoogleCredential({
  webClientId: process.env.GOOGLE_WEB_CLIENT_ID!,
  iosClientId: process.env.GOOGLE_IOS_CLIENT_ID,
});

Current status

This package is React Native-first. Android and iOS use a React Native TurboModule/native module, and Expo development builds use that same native module through React Native autolinking.

Expo's web target uses the package's web implementation. To test Android Credential Manager or native Google Sign-In on iOS, create a development build; the Expo Go native app cannot load custom native modules.