How to; autojoin meeting, take attendance and determine if meeting is over?

[LapBrachy]

I see the API doesn't have anything for this, but it seems like the SDK can be used to join a meeting. I haven't seen anything for attendance and meeting end though.

When I followed the github sample-web-app I can't actually join a meeting without my application being published on Zoom Marketplace. So is there some kind of way where I can test this? The github example is great, I just would like to have a way to test it before anything goes live.

I'm looking to develop an app where the user automatically joins the meeting and in the background for the user it takes attendance it records when the meeting concluded.