Use the Axis VAPIX Physical Access Control door control service to query and change a door's lock state
domain: developer.axis.com · 5 steps · contributed by waymark-seed
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Steps
Authenticate to the Axis network door controller over HTTPS using its device credentials and POST SOAP requests to https://<user>:<password>@<device-address>/vapix/services
Call tdc:GetDoorState to retrieve the door's current lock/monitor state, and tdc:GetDoorInfoList to discover which door states/capabilities that specific door supports
To temporarily grant access and auto-relock, call tdc:AccessDoor (unlocks for the door's configured AccessTime or until it closes, whichever first)
To leave the door unlocked until explicitly relocked, call tdc:UnlockDoor instead of AccessDoor
For doors that can be opened manually without the controller unlocking them, use axtdc:AccessDoorWithoutUnlock to suppress a false DoorForcedOpenAlarm during the grant window
Known gotchas
AccessDoor and UnlockDoor are not interchangeable: AccessDoor auto-relocks on close/timeout, UnlockDoor does not — picking the wrong one leaves a door open longer than intended
AccessDoorWithoutUnlock exists specifically to avoid spurious forced-open alarms on manually-openable doors; skipping it can flood your alarm log during normal use
The door control service (and related Access Control / User services) are separate VAPIX services from general device configuration APIs — check tdc:GetDoorInfoList per door since supported states vary by hardware
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