AI Foundry Content Understanding

So I have been all over the internet looking for information on Content Understanding specifically API so I can call it from a function. I'm not new to AI but I am new to doing it in Azure and I'll be honest it lives up to the hype of being hard to deal with. Does anyone have any experience with it? I mean I can use the portal all day long. But the API documentation is completely lacking. When I try to call the endpoint in postman it tells me it cannot find the resource or model.. HELP!?!?!?!?