Services or capabilities described in Amazon Web Services documentation might vary by Region. To see the differences applicable to the China Regions, see Getting Started with Amazon Web Services in China (PDF).

Amazon CloudWatch events

CloudWatch sends service events directly to EventBridge.

CloudWatch service events

CloudWatch sends the following events directly to EventBridge:

Delivery type: Durable

To match against all events from this service, create an event pattern that matches against the following event attribute:

{
  "source": ["aws.cloudwatch"]
}

To match against specific events, include a detail-type attribute specifying an array of event names to match. For example:

{
  "source": ["aws.cloudwatch"],
  "detail-type": ["CloudWatch State Alarm State Change"]
}

For more information, see Creating event patterns in the Amazon EventBridge User Guide.