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No Servlets Required: Exporting Data with Sling Models

Published on by Dan Klco on
Since version 1.3.0 of Sling Models, which was released in November 2016 and is available in AEM 6.3+, the Apache Sling team introduced a new capability to directly export models as a Java Servlet. I finally have a chance to use this new feature and I found it reduced the amount of boilerplate code I had to write by at least half. Traditionally, to expose data in a Sling Model to JSON you had to use a tool like Gson to serialize it and write a Servlet to expose an endpoint. With the new version of Sling Models, you can directly expose a model as a Servlet by specifying a resource type and the selector to use. When the Model is loaded into Apache Sling, it automatically registers a Servlet corresponding to the model. allowing you to zero Servlet code access a JSON representation of the model. That's super cool!


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