What You Will Build

You will build a full-stack reactive web app that sends and receives messages through Kafka. The app uses Spring Boot and Java on the server, Lit and TypeScript on the client, and the Hilla framework for components and communication.

What You Will Need

20 minutes
Java 11 or newer
Node 16.14 or newer
An IDE that supports both Java and TypeScript, such as VS Code.

Technology Overview


Apache Kafka is a distributed event streaming platform. You can think of it as a publish/subscribe system on steroids. Kafka producers can send messages to a topic, and consumers can then read those messages. However, unlike most pub/sub systems, the messages do not get removed from the topic when you read them. This allows you to perform stream processing to analyze, aggregate, or transform data from different events in real-time.

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