How to Build a UDF and/or UDAF in ksqlDB 5.0 | Confluent

What this post added

Introduces the official API for building User-Defined Scalar Functions (UDFs) and User-Defined Aggregate Functions (UDAFs) in ksqlDB 5.0. Details the motivation for UDFs/UDAFs, the steps to create, deploy, and test them using a Java class and annotations, and provides an example of a deep-learning UDF for anomaly detection. Also outlines potential issues during development and testing and discusses future roadmap items.