write operations in Firestore Database

Google Cloud Database
1

Hi Comunity, I have some questions about write operations in Firestore Database, can someone help me clear my questions?

  1. I currently use subscription to Observables in my web application, thats Observables are pending data updates and new writes in the Firestore Data Base, the question is, when each Observable detects a change in the database, this change is taken and add in the read operations counter?

  2. I am developing my web application in Angular, for user authentication I am using promise subscription with AngularFireAuth, for this case, when each Observable detects a change on the promise return, this change is taken and add in the read operations counter?

Thanks, these questions are related to managing my Billable Metrics in Firestore Database… attentive I say goodbye

2

When you listen to the results of a query, you are charged for a read each time a document in the result set is added or updated. 1

To help avoid unexpected charges on your bill, set monthly budgets, and alerts using Google Cloud’s billing console. 2