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You are developing an application designed to monitor changes in Cloud Storage and Firestore instances. Upon detecting a change, it should immediately trigger an action to verify and process the updated data in near real-time. What is the most efficient method to achieve this with minimal setup?
A
Redirect your data-changing queries to an App Engine application, call the data processing script from the App Engine application.
B
Call the data processing script from the Cloud Function triggers using Cloud Function events.
C
Write a Python script that fetches logs from the datastores, analyzes them, and invokes the required processing code.
D
Invoke the data processing script using the trigger mechanism in each datastore.