LocalAuthentication with expo

app.json

...
expo > ios > infoPlist
          "NSFaceIDUsageDescription": "This app use face id authentication."
...

index.tsx

import * as LocalAuthentication from 'expo-local-authentication'  


useEffect(() => {
    (async () => {
      const compatible: boolean = await LocalAuthentication.hasHardwareAsync();
      const savedBiometrics: boolean = await LocalAuthentication.isEnrolledAsync();
      const biometricAuth: LocalAuthentication.LocalAuthenticationResult = await LocalAuthentication.authenticateAsync({
        promptMessage: 'Login with Biometrics',
        disableDeviceFallback: true,
        cancelLabel: "cancel",
        fallbackLabel: "fallback",
        requireConfirmation: false
      });

      console.log("⚡️ ", {
        compatible,
        savedBiometrics,
        biometricAuth,
      });
    })();
  }, []);