yeah it works thank you @tomhollander !!
im still curious, can you correct me if im worng or give me some explanation:
- the binning logic is automatically created from the mongodb itself right? so whatever shows when i want to binning some label is a value that mongodb detect from collection?
- is it possible to aggregate raw data from back-end side (scraper things) to wind or unwind the value? I mean my problem above could be done also by modify the aggregate pipeline (example fom compasss)
for the 2nd question i cant explain it clearly, otherwise the problem is solved, its just my curiousity. Thanks again @tomhollander ! 