DynamoDB provides support for creating a stream of events to track every time a change happens in a table. So when an item gets inserted, updated, or deleted.

Order being inserted to DynamoDB table, event being generated in the stream

Our solution could be in the form of a task that keeps polling this stream for new entries and publishes to SQS or SNS. Instead of having to do this task, I opted to leverage another DynamoDB integration: Lambdas.

DynamoDB streams can be configured to trigger the execution of Lambdas for every entry. This helps reduce the number of moving parts that I have to write and manage on my own.

https://medium.com/ssense-tech/implementing-a-transactional-outbox-pattern-with-dynamodb-streams-to-avoid-2-phase-commits-ed0f91e69e9