CODE EXAMPLE FOR JAVASCRIPT

react native biometrics sign in

import ReactNativeBiometrics from 'react-native-biometrics'
 
ReactNativeBiometrics.isSensorAvailable()
  .then((resultObject) => {
    const { available, biometryType } = resultObject
 
    if (available && biometryType === ReactNativeBiometrics.TouchID) {
      console.log('TouchID is supported')
    } else if (available && biometryType === ReactNativeBiometrics.FaceID) {
      console.log('FaceID is supported')
    } else if (available && biometryType === ReactNativeBiometrics.Biometrics) {
      console.log('Biometrics is supported')
    } else {
      console.log('Biometrics not supported')
    }
  })