checkAvailability


Purpose

Checks if hardware is available that allows for fingerprint authentication and if a fingerprint has been enrolled.

Signature

checkAvailability( )

Returns

This method returns a promise object, which can be in one of the following states:

  • Resolve - returns an isAvailable boolean parameter.

  • Reject - returns an object that is an instance of a generic Error class, as described below.

    {
      "name": error_code
      "message": detailed_message
    }

Where error_code stands for one of the error codes described in the Constants section of the Authentication article and detailed_message can be an additional message from the native side.

Related topics

FingerprintAuthenticator
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