This module streams records of type <String, KafkaUser> from the USER_TOPIC and splits the stream into different branches based on the user's last name. It demonstrates the following:

• How to use the Kafka Streams DSL, including split(), branch() and peek().
• Unit testing using the Topology Test Driver.

To compile and run this demo, you’ll need:

• Java 21
• Maven
• Docker

To run the application manually:

• Start a Confluent Platform in a Docker environment.
• Produce records of type <String, KafkaUser> to the USER_TOPIC. You can use the Producer User for this.
• Start the Kafka Streams application.

To run the application in Docker, use the following command:

docker-compose up -d

This command will start the following services in Docker:

• 1 Kafka Broker (KRaft mode)
• 1 Schema Registry
• 1 Control Center
• 1 Producer User
• 1 Kafka Streams Branch