.. meta::
   :description: Kafka streams is a client library for building applications and microservices.

.. _kafka_streams:

|kstreams|
=============

|kstreams| is a client library for building applications and microservices, where the input and output data are stored
in an |ak-tm| cluster. It combines the simplicity of writing and deploying standard Java and Scala applications on the client
side with the benefits of |ak|'s server-side cluster technology.

Quick Start Guide
   The :ref:`streams_quickstart` demonstrates how to run your first Java application that uses the |kstreams| library by showcasing a simple end-to-end data pipeline powered by |ak|.

Streams Podcasts
   *Streaming Audio* is a podcast from Confluent, the team that built |ak|.
   Host Tim Berglund (Senior Director of Developer Experience, Confluent) and
   guests unpack a variety of topics surrounding |ak|, event stream processing,
   and real-time data. 

   - `Apache Kafka Fundamentals: The Concept of Streams and Tables ft. Michael Noll <https://confluent.buzzsprout.com/186154/3559354-apache-kafka-fundamentals-the-concept-of-streams-and-tables-ft-michael-noll>`__
   - `Introducing JSON and Protobuf Support ft. David Araujo and Tushar Thole <https://confluent.buzzsprout.com/186154/3970760-introducing-json-and-protobuf-support-ft-david-araujo-and-tushar-thole>`__

Recommended Reading
   - `Streams and Tables in Apache Kafka: A Primer <https://www.confluent.io/blog/kafka-streams-tables-part-1-event-streaming/>`__
   - `Introducing Kafka Streams: Stream Processing Made Simple <https://www.confluent.io/blog/introducing-kafka-streams-stream-processing-made-simple/>`__

Streams API Screencasts
   Watch the `Intro to Streams API <https://www.youtube.com/watch?v=Z3JKCLG3VP4>`_ on YouTube.

   .. raw:: html

       <div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; height: auto;">
           <iframe src="https://www.youtube.com/embed/Z3JKCLG3VP4" frameborder="0" allowfullscreen style="position: absolute; top: 0; left: 0; width: 100%; height: 100%;"></iframe>
       </div>

**Contents**

.. toctree::
   :maxdepth: 3

   introduction
   quickstart
   ../tutorials/examples/microservices-orders/docs/index
   kafka-streams-examples/docs/index
   Connecting Kafka Streams to Confluent Cloud <https://docs.confluent.io/cloud/current/cp-component/streams-cloud-config.html>
   concepts
   architecture
   code-examples
   developer-guide/index
   ../tutorials/examples/connect-streams-pipeline/docs/index
   Streams Operations <operations>
   upgrade-guide
   faq
   javadocs