Anybody figure out the web API to trigger a recording to file? I have a IPC-HFW5241E-Z12E

[Laserray]

I would like to directly trigger the camera via web API and store the stream to a file for processing. I haven't found any links to get my a clue on how to do this.
The API docs are like drinking muddy water.
This would take some pressure off of Blue Iris doing all the pre-trigger and converting to the proper format.

Thanks