Luc van Donkersgoed's Notes

Tag: Event Source Mappings

  • Implement the Priority Queue Pattern with SQS and Lambda

    Implement the Priority Queue Pattern with SQS and Lambda

    A queue is a buffer for constrained resources. A priority queue is an additional queue that should be emptied first, even when the main queue has millions of items on it. This allows important messages to be processed quickly, regardless of system load. In this article, we will show how to implement the priority queue…

  • The 9 Ways an SQS Message can be Deleted

    The 9 Ways an SQS Message can be Deleted

    Over the years many features and integrations have been added to SQS. Some of these features introduce new, and sometimes surprising, ways for a message to disappear. In this article we will look at nine ways a message can be removed from an SQS queue.

  • Filter DynamoDB Event Streams Sent to Lambda

    Filter DynamoDB Event Streams Sent to Lambda

    Event Source Mappings are the invisible engine converting streams and queues to batches. In this article we will dive deep on Event Source Mappings and its filtering capabilities.