What Is EG?

EventGrid (EG) is a serverless event bus service for standard and centralized access of Huawei Cloud services and custom or SaaS applications. You can build a loosely coupled, distributed event-driven architecture to flexibly route events via CloudEvents.

Figure 1 EG architecture
Click to enlarge

Event sources: Including Huawei Cloud services, custom applications, and SaaS applications. They produce event messages and publish them to subscriptions.
Event subscriptions: Store received messages and route them to targets as specified by relevant rules.
Event targets: Consume event messages.

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