[disclaimer: I'm the author] DynamoDB Streams Filtering in Serverless Framework - shows how to use the recently released functionality of events filtering in

[disclaimer: I'm the author] DynamoDB Streams Filtering in Serverless Framework - shows how to use the recently released functionality of events filtering in DynamoDB Streams & Lambda functions. Depending on your read/write volume in DynamoDB, you can save a little or a lot, by not starting Lambda functions when events are not relevant for your business logic.