Pass Cloudwatch Event Data to Lambda Function

There is a Java example here - https://github.com/awsdocs/aws-lambda-developer-guide/tree/main/sample-apps/java-events

This example shows how different types of events can be handled in lambda and Cloudwatch Events is one of the examples.

Note that Cloudwatch events has now been integrated into a service called Eventbridge

There is a good AWS workshop that provides good hands-on practice with Eventbridge over here - https://catalog.us-east-1.prod.workshops.aws/workshops/63320e83-6abc-493d-83d8-f822584fb3cb/en-US

This particular section https://catalog.us-east-1.prod.workshops.aws/workshops/63320e83-6abc-493d-83d8-f822584fb3cb/en-US/lambda in the above workshop shows lambda integration with Eventbridge

There is also a tutorial in the AWS documentation that shows how to integrate Lambda with Eventbridge over here - https://docs.aws.amazon.com/eventbridge/latest/userguide/eb-run-lambda-schedule.html

Hello,

Using SNS as a trigger to the Lambda function for the CloudWatch Event. It provides a message that is sent to a SNS Topic. When the SNS triggers the Lambda Function, the message event can be obtained by a Lambda code. From that you can tap into the message dictionary and get the values needed.

The below link shows how you can get the message from the SNS topic

https://docs.aws.amazon.com/lambda/latest/dg/with-sns-create-package.html#with-sns-example-deployment-pkg-python