





Вы можете написать / использовать триггер DynamoDB - функцию AWS Lambda - чтобы сделать это за вас:
https://aws.amazon.com/dynamodb/faqs/
** Q. How does DynamoDB Triggers work? ** The custom logic for a DynamoDB trigger is stored in an AWS Lambda function as code. To create a trigger for a given table, you can associate an AWS Lambda function to the stream (via DynamoDB Streams) on a DynamoDB table. When the table is updated, the updates are published to DynamoDB Streams. In turn, AWS Lambda reads the updates from the associated stream and executes the code in the function.