With event-driven architectures, it’s quite common to read events from a source in one region or project and route them to a destination in another region or another project. Let’s take a look at how you can implement cross-region and cross-project event routing in Google Cloud.
Cross-region event routing is straightforward in Google Cloud, whether you’re using Pub/Sub directly or Eventarc. Pub/Sub routes messages globally. When applications hosted in any region publish messages to a topic, subscribers from any region can pull from that topic. Eventarc enables you to route events across regions by creating a trigger in the region of the event’s source and specifying a destination in a different region. For more details, take a look at my previous blog post on Eventarc locations.