getUserIdFromQrcode
Extract the User Id from a QR code.
Return
User id of the QR code session
Parameters
qrCode
raw value of scanned QR code.
Throws
if the QR code is invalid or doesn't contain a user ID (Usernameless)
Extract the User Id from a QR code.
User id of the QR code session
raw value of scanned QR code.
if the QR code is invalid or doesn't contain a user ID (Usernameless)