Introducing Cognito Events: run AWS Lambda functions in response to events in Amazon Cognito

The Amazon Cognito Events feature allows you to run AWS Lambda functions from Amazon Cognito. You can now invoke actions with changes in user data, such as app preferences or game state – and then validate, audit, or modify that data on the Lambda backend, without provisioning or managing any backend infrastructure. To learn more, visit our blog.

from What's New from Amazon Web Services http://ift.tt/1Of8JGJ