URI for Umbrel Public Pool App API to retreive Best Diff

I’d like to grab best diff from time to time via api and am not finding the proper query.

Can anyone confirm how to form up the query to get best diff of a miner or the pool, as shown below?

This is the most I’m able to obtain from the api at the moment: ‘http://192.168.x.x:x/api/pool’ , which yields -

{“totalHashRate”:x,“blockHeight”:x,“totalMiners”:x,“blocksFound”:,“fee”:0}

But, i really want this data -