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Simply so, what is the use of Kafka streams?

Kafka Streams is a library for building streaming applications, specifically applications that transform input Kafka topics into output Kafka topics (or calls to external services, or updates to databases, or whatever). It lets you do this with concise code in a way that is distributed and fault-tolerant.

what is Kafka streams API? The Kafka Streams API allows you to create real-time applications that power your core business. It is the easiest to use yet the most powerful technology to process data stored in Kafka. It gives us the implementation of standard classes of Kafka.

Similarly, you may ask, what is the difference between Kafka and Kafka streams?

Every topic in Kafka is split into one or more partitions. Kafka partitions data for storing, transporting, and replicating it. Kafka Streams partitions data for processing it. In both cases, this partitioning enables elasticity, scalability, high performance, and fault tolerance.

How do I create a Kafka stream?

This quick start follows these steps:

1. Start a Kafka cluster on a single machine.
2. Write example input data to a Kafka topic, using the so-called console producer included in Kafka.
3. Process the input data with a Java application that uses the Kafka Streams library.