What is Sling Servlets?

Sling Servlets are a key component of the Apache Sling web framework. They handle HTTP requests based on resource resolution, meaning that the servlet to be executed is determined by the resource being accessed rather than a fixed URL pattern. This allows for a content-centric approach to web application development, where URLs reflect the content structure. Sling Servlets are commonly used to render content, process form submissions, and implement API endpoints within a Sling-based application. They are registered with the Sling engine using resource type or path matching, allowing flexible binding of servlets to different parts of the content repository.