API request requires a limit and offset. How do I increase my offset (+50) in my until loop to get through all of the pages.

Question

In the picture you will notice I have

URL?limit=1,&offset=0

What I want to do is:

URL?limit=50,&offset=0

Is it done? no

URL?limit=50,&offset=50

Is it done? no

URL?limit=50,&offset=100

Is it done? yes

sink

but I don't know how to dynamically increment my offset and check to see if the request is done returning data.