Apache Pulsar in Action

4 Pulsar functions

This chapter covers

• An introduction to the Pulsar Functions framework

• The Pulsar Functions programming model and API

• Writing your first Pulsar function in Java

• Configuring, submitting, and monitoring a Pulsar function

In our previous chapter, we looked at how you can work with Pulsar using some of the various client libraries. In this chapter, we will look at a stream-native processing engine known as Pulsar Functions that makes the development of Pulsar-based applications much simpler. This lightweight processing framework automatically handles a lot of the boilerplate coding required to set up Pulsar consumers and producers, allowing you to focus on the processing logic itself, rather than the consumption and processing ...