Retrieves the JSON object from a fingerprint-secured keychain. Data retrieval requires that the user authenticates with the enrolled fingerprint.
This method returns a promise object, which can be in one of the following states:
Resolve - returns an payload object that can can contain any
properties. For example, it can be structured as follows.
{
identifier,
password
}Where identifier stands for a user identifier and
password stands for a user password connected with the
identifier.
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.