Are updating, creation etc. functionalities of cloud functions affected by the firestore security rules?

Question

I have made several rules based on the userid so wanted to confirm that will these rules block the update done by the cloud functions written in nodejs.

Answer 1

Your cloud functions act as admin. See How to make Firebase Functions act as a user instead of being an admin?

But there is a button in Rules tab called Rules Playground that you can use for testing your firestore rules.