What is the purpose of a DataWeave transformer in MuleSoft?

The purpose of a DataWeave transformer in MuleSoft is to transform data from one format to another. DataWeave is a powerful transformation language designed to handle various data formats, such as JSON, XML, CSV, and others. It allows developers to easily manipulate and convert data, enabling seamless integration between systems that may require different data models or structures.

For instance, if an API receives data in JSON format and the backend system expects it in XML, a DataWeave transformer can be applied to convert the incoming JSON to the required XML format, ensuring smooth data flow and interoperability. This transformation capability is crucial in integration scenarios, where data from different sources needs to be harmonized and processed according to the requirements of connected components and services.