Cloud Firestore collection count

Question

Is it possible to count how many items a collection has using the new Firebase database, Cloud Firestore?

If so, how do I do that?

Answer 1

I have try a lot with different approaches. And finally, I improve one of the methods. First you need to create a separate collection and save there all events. Second you need to create a new lambda to be triggered by time. This lambda will Count events in event collection and clear event documents. Code details in article. https://medium.com/@ihor.malaniuk/how-to-count-documents-in-google-cloud-firestore-b0e65863aeca