Kafka Streams is een bibliotheek voor stream processing — het bouwen van applicaties die gegevens in Kafka-onderwerpen in real time verwerken en transformeren (filteren, transformeren, aggregeren, streams samenvoegen). Het maakt real-time gegevensverwerking mogelijk rechtstreeks op Kafka.
Wat stream processing is
STREAM PROCESSING → process data CONTINUOUSLY as it arrives (in real time), vs batch
(processing stored data periodically):
→ consume events from topics, transform/analyze them, produce results (often to other topics)
→ real-time: react to and process events as they happen (low latency)
→ for: real-time analytics, transformations, monitoring, enrichment, aggregations
