Practical example for Interactive Queries feature in Kafka Streams. It covers the DSL API and how the state store information was exposed via a REST service.
For details check this blog
Everything is setup using Docker including Kafka, Zookeeper, the stream processing services as well as the producer app
Here are the key components
- Metrics producer service - pushes machine metrics (simulated) to Kafka
- Average Processor service - calculates the average of the stream of generated metrics and exposes REST APIs to query them
