Kafka Streams in Action, Second Edition

6 Developing Kafka Streams

This chapter covers

• Introducing the Kafka Streams API
• Building our first Kafka Streams application
• Working with customer data and creating more complex applications
• Splitting, merging, and branching streams

A Kafka Streams application is a graph of processing nodes transforming event data as it streams through each node. In this chapter, you’ll learn how to build a graph that makes up a stream processing application with Kafka Streams.

6.1 A look at Kafka Streams

Let’s take a look at an illustration of what this means in figure 6.1. This illustration represents the generic structure of most Kafka Streams applications. There is a source node that consumes event records from a Kafka broker. There are any number ...