User follows new api

I’m fairly certain you’ll get a Total property that you can use to compare against the number of follows you’ve fetched thus far. Once you have fetched a number of follower equivalent to the returned “Total” count, you’re done.

You’ll probably want to hit the Users endpoint to get usernames. Something like this:
https://api.twitch.tv/helix/users?id=1111111&id=2222222&id=3333333&id=44444444
You can do up to 100 at a time.