In this tutorial, you'll delve into the mechanics of Kafka and then integrate it with Go to develop a realtime notification system. Create a complete Kafka Consumer using Java in this Learn Apache Kafka Programming Tutorial with real Kafka consumer code and examples.In this Kafka Tutorial you will learn how to get up and running Kafka, Configure topics, Producers and Consumer. I am trying to understand how Kafka can be used for real time notification. Let's say I have a kafka topic for alerting purposes. The wake up time out should be much higher. It currently is 3 seconds, but the default heartbeat in kafka is also 3 seconds. It was written in Java with a full JMS (Java Message Service) client. We are using reactivekafka (Using com.typesafe. What we aim to build in this tutorial is a basic notification system between kafka and an angular app.