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Warning

Axxon Next 4.3.0.8031 and higher versions.

To get the camera events using WebSocket, do the following:

  1. Connect to ws://[user_name]:[password]@[IP-address]:[port]/[prefix]/events.
  2. Send a JSON command to subscribe on events generated by the specified cameras (see Get list of video sources ( cameras and information about them)). This subscription allows you to receive all the events shown in the table below.

    Code Block
    {
    "include":
    ["hosts/Server1/DeviceIpint.1/SourceEndpoint.video:0:0", "hosts/Server1/DeviceIpint.6/SourceEndpoint.video:0:0"],
    "exclude":[]
    }

    include - subscribe to the events receiving;
    exclude - disable the events receiving.

...

List of event types and camera states:

Event typeDescriptionStates
devicestatechangedCamera state

signal restored

 - connected

connected, signal restored

signal lost

 - signal

– signal lost

alertAlarmNo states
alert_stateAlarm stateprocessing
 - the
the alarm is being processed
closed
 - alarm
alarm processed
reaction
 - alarm
alarm initiated
detector_eventDetection tool triggeringNo states
camera_record_state

Archive record state

on
 - the
the camera is recording to the archive
off
 - the
the camera is not linked to the archive
gray
 - the
the camera is linked to the archive, but is not recording


Info
titleNote

If the camera is disabled in Axxon Next, no events are received from it using WebSocket, including the signal lost event.

...