And of course I found a solution after I posted this question (although I googled for quite some time before), https://community.openhab.org/t/shinobi-cctv-video-software/39264/10
Posts made by peppelorum
RE: HTTP post on event (motion detection/starts recording)
HTTP post on event (motion detection/starts recording)
Testing if Shinobi can replace my SSS and so far it looks pretty good=)
One question though, can I set up to do a http post on some kind of event, like motion detection or if the recording starts?