Provides an API for FaceID and TouchID (iOS) or the Fingerprint API (Android) to authenticate the user with a face or fingerprint scan. # API documentation - [Documentation for the latest stable release](https://docs.expo.dev/versions/latest/sdk/local-authentication/) - [Documentation for the main branch](https://docs.expo.dev/versions/unversioned/sdk/local-authentication/) # Installation in managed Expo projects For [managed](https://docs.expo.dev/archive/managed-vs-bare/) Expo projects, please follow the installation instructions in the [API documentation for the latest stable release](https://docs.expo.dev/versions/latest/sdk/local-authentication/). # Installation in bare React Native projects For bare React Native projects, you must ensure that you have [installed and configured the `expo` package](https://docs.expo.dev/bare/installing-expo-modules/) before continuing. ### Add the package to your npm dependencies ``` npx expo install expo-local-authentication ``` ### Configure for Android No additional set up necessary. This module requires permissions to access the biometric data for authentication purposes. The `USE_BIOMETRIC` and `USE_FINGERPRINT` permissions are automatically added. ```xml ``` ### Configure for iOS Run `npx pod-install` after installing the npm package. Add `NSFaceIDUsageDescription` to your `Info.plist`: ```xml NSFaceIDUsageDescription Allow $(PRODUCT_NAME) to use FaceID ``` # Contributing Contributions are very welcome! Please refer to guidelines described in the [contributing guide](https://github.com/expo/expo#contributing).