What is the primary purpose of a DataWeave script in MuleSoft?

The primary purpose of a DataWeave script in MuleSoft is to define data transformations. DataWeave is a powerful data transformation language specifically designed for handling various data formats such as JSON, XML, CSV, and many others. It allows developers to write concise and efficient scripts to manipulate and convert data from one structure or format to another.

In integration scenarios, data often comes from various systems in different formats, and DataWeave serves as the tool that facilitates the conversion of this data, making it easier to process and consume. Whether you need to transform incoming requests into a specific format for another service, reshape data for storage, or perform complex manipulations, DataWeave scripts are utilized to achieve these tasks effectively and efficiently.

The other options, while relevant to software development, do not capture the essence of what DataWeave is primarily intended for. Creating REST APIs involves defining endpoints and configuring HTTP interactions, managing user authentication is related to securing API access, and connecting to databases involves querying and updating data directly, none of which pertain directly to the transformation capabilities that DataWeave provides.