Resume enrollment

Enrollment can be interrupted — the app closes, the reader unplugs, the session ends. Resume by asking the server which fingers are already done, then capturing only what’s missing. fetchEnrolled needs no hardware.

val state = session.fetchEnrolled(enrollee) ?: return
 
when (state.enrollmentStatus) {
    "fully_enrolled" -> return   // nothing to do
    else -> {
        val done = state.verified.toSet()
        val remaining = targetPositions.filter { it !in done }
        // capture only `remaining` — see Enroll a fingerprint
    }
}

What fetchEnrolled tells you

EnrolledFingerprints:

• verified — positions complete. Skip these.
• nonVerified — positions captured but still awaiting their verify capture. Finish these with verifyEnrollment.
• total — count of stored prints for the subject.
• enrollmentStatus — "partially_enrolled" or "fully_enrolled".
• notes — optional server-supplied enrollment notes.

Detecting a reset

If a finger you expected has vanished from both verified and nonVerified, the backend reset it (verify attempts exhausted). Re-enroll it from scratch: enroll then verifyEnrollment. See Fingerprint enrollment.

Used in

• Enroll a fingerprint
• Fingerprint enrollment