// ExportQR returns a QR code as a PNG for the TOTP token.
func (config *TOTPConfig) ExportQR(label string) ([]byte, error) {
u := config.generateURL(label)
code, err := qr.Encode(u, qr.Q)
if err != nil {
return nil, err
}
return code.PNG(), nil
}
// QR generates a byte slice containing the a QR code encoded as a
// PNG with level Q error correction.
func (o OATH) QR(t Type, label string) ([]byte, error) {
u := o.URL(t, label)
code, err := qr.Encode(u, qr.Q)
if err != nil {
return nil, err
}
return code.PNG(), nil
}