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Firestore Document Changes Tracker

Author: Gaussiana

Description: Creates firestore logs for every change on a collection.

Details: Use this extension to save a log of changes in all the documents on a collection

Billing

This extension uses other Firebase or Google Cloud Platform services which may have associated charges:

  • Cloud Functions

When you use Firebase Extensions, you're only charged for the underlying resources that you use. A paid-tier billing plan is only required if the extension uses a service that requires a paid-tier plan, for example calling to a Google Cloud Platform API or making outbound network requests to non-Google services. All Firebase services offer a free tier of usage. Learn more about Firebase billing.

Configuration Parameters:

  • Collection path to track changes: Collection path to track changes

  • Collection path to store changes: Collection path where all the logs will be saved

  • Ignore fields: Comma separated fields that won't trigger a new history version (nor will be saved on the version data). Nested fields are supported with parent.child syntax.

  • Field name with modifier user information: Field where the user that made the last change is store (if present it gets copied to log, else ignored)

Cloud Functions:

  • trackDocumentChanges: Firestore-OnWrite-triggered function that keep track of the changes of documents

Access Required:

This extension will operate with the following project IAM roles:

  • datastore.user (Reason: Allows the extension to write to Firestore.)