When I was a child, I used to lie on the bed and gaze for a long time at the patterns on an old Soviet rug, seeing animals and fantastical figures within them. Now, I more often look at code, but similar images still emerge in my mind. Like on the rug, these images form repetitive patterns. They can be either pleasing or repulsive. Today, I want to tell you about one such unpleasant pattern that can be found in programming.

Scenario

Imagine a service that processes a client registration request and sends an event about it to Kafka. In this article, I will show an implementation example that I consider an antipattern and suggest an improved version.