Posted On: Oct 9, 2019
API Gateway Resource Policies: SAM now supports a simplified syntax for adding resource policies for the APIs in a template. With this addition, customers can whitelist or blacklist users based on AWS Accounts, IP addresses or source VPCs.
SQS subscription for SNS topic: SAM now supports adding the SqsSubscription property for SNS topic events triggering a Lambda function. If set to true, the SNS topic will instead publish to an SQS queue created by SAM and the Lambda function will now receive events from the SQS queue.
Cognito as an event source: SAM now provides a simplified way to add Cognito as an event source for Lambda functions to customize the Amazon Cognito user pool flows. Customers can define the Cognito properties within the AWS::Serverless:: Function definition.