Kafka Streams Playground

Number of small projects to play around Apache Kafka Streams with Spring Boot

Project Structure

• word-count - basic application to count words using Kafka Streams.
• favourite-color - application to determine how many users like certain color. Also, Kafka streams with intermediate table.
• balance—app — application which contains aggregation with exactly one semantics and additional join stream-table with favourite color for the same user.
• balance—app-kotlin — basically the same as balance—app but written in Kotlin. The subproject contains topology and integration tests.

Get the app

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Prerequisites

• Java 21
• Kafka

Before you can run the application, you need to get the application source code onto your machine.

1. Clone the getting-started repository using the following command:

   git clone [email protected]:PPrydorozhnyi/kafka-streams-playground.git

2. Build and run project locally inside the certain module:

./gradlew bootRun

Tests

Topology and integration tests are inside balance-app and balance-app-kotlin modules.

Dependencies

• Kafka

Maintainers

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[email protected]