How to use the expo-local-authentication.authenticateAsync function in expo-local-authentication
To help you get started, we’ve selected a few expo-local-authentication examples, based on popular ways it is used in public projects.
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janaagaard75 / expo-and-typescript / src / LocalAuthenticationScreen.tsx View on Github 
private async authenticate() {
const authenticated = await LocalAuthentication.authenticateAsync({
promptMessage: "Authentication message"
});
if (authenticated.success) {
this.setState({
authenticationError: "None"
});
} else {
this.setState({
authenticationError: authenticated.error
});
}
this.setState({
authenticated: authenticated.success
});expo-local-authentication
Provides an API for FaceID and TouchID (iOS) or the Fingerprint API (Android) to authenticate the user with a face or fingerprint scan.
