An open-source solution to message re-processing for applications built with an event-driven or micro-services architecture. Kafka-Penguin wraps around KafkaJS objects to provide a user-configurable service for reprocessing messages, allowing developers to decide how to handle retries and when messages should be sent to the dead letter queue (DLQ). KAFKA is a registered trademark of The Apache Software Foundation. Kafka Cascade has no affiliation with and is not endorsed by The Apache Software Foundation. Kafka-Penguin was developed separately from KafkaJS and is not affiliated with KafkaJS. Accelerated by OS Labs.