The integration of Eventarc into Firestore includes a new Auth Context extension that embeds metadata about who triggered a document change.

Google Cloud Platform provides a suite of cloud computing services for building, deploying, and managing applications and infrastructure on Google's global network. Developers can learn about cloud-native development, machine learning, and big data analytics to leverage GCP's scalable and reliable cloud infrastructure for their projects.

Google Cloud

Firestore integration with Eventarc has reached general availability, providing new functionality and event types, including the Auth Context extension for CloudEvents. This allows embedding metadata about the principal triggering a document change. Setting up triggers for Firestore with authentication information enables capturing and processing events based on different authentication contexts.

Firestore-Eventarc integration now GA with Auth Context