Firebase Firestore: How to monitor read document count by collection?

Question

I'm monitoring document read count in Firebase Console > Firestore > Usage section.

However, I want to find a way to see document read count by collection so that I can know which query to optimize.

Is there anyway for that?
I looked into GCP monitoring but I couldn't achieve what I want to do here.

I read documents from js SDK and nodejs Admin SDK

Answer 1

Firestore provides no accounting other than a total running read count for the entire database for the last 30 days. If you need something more specific, you'll have to record it yourself somehow.