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Queryable Kafka Topics with Kafka Streams

This repository provides the source code for our blog post on Medium.

It includes an example implementation of a Kafka Streams application that provides a key-value query interface to the messages of a key-partitioned Kafka topic.

Additionally, a Dockerfile and a Kubernetes deployment specification demonstrate how the application can be easily deployed to a Kubernetes Cluster.

Quick Start

Compile the project using Maven:

mvn package

Start one or more instances of the Kafka Streams application:

./streams-processor                         \
    --topic messages                        \
    --streams-props                         \
        bootstrap.servers=localhost:9092    \
        num.standby.replicas=1              \
    --application-id my-streams-processor   \
    --hostname localhost