This sample application shows how to use basic Spring Boot configuration to set up a producer to a topic with multiple partitions and a consumer group with three different consumers.

The complete post with details is on The Practical Developer website: Spring Boot and Kafka - Practical Configuration Examples.

To illustrate the different configuration options, this application deserializes Kafka messages in three different ways:

• As a JSON to Java object.
• As a simple String (plain JSON).
• As a byte array.

This code includes a docker-compose.yml file, so you can use Docker Compose to start up Kafka without installing anything.

Give a star to this project, and consider some extra readings:

• My practical book about building a microservices architecture from scratch.
• The Full Reactive Stack Guide.
• The Practical Architecture Guide.