![]() DataWeave filter function: How to filter items in an Array.DataWeave distinctBy function: How to remove duplicate items from an Array.What is DataWeave? Part 3: Variables, Flow Control, and Functions.Learn DataWeave with the Online DataWeave Playground and Interactive Tutorial.How to implement a Custom Policy in API Manager: Circuit Breaker Policy.Explore the Anypoint Platform APIs with the Postman Collection.How to use MuleSoft’s Anypoint Platform APIs to manage API Specifications.Build your first API Specification with API Designer.Best practices to design your first API Specification.How to apply Client ID enforcement policy to your Mule app in API Manager.How to set up API Autodiscovery in Anypoint Studio.How to secure properties before deployment in Anypoint Studio.How to set up your global elements and properties files in Anypoint Studio.Build your first Hello Mule application.Connecting your first SaaS application to Salesforce.You may be interested in my other DataWeave blog: DataWeave lambdas for Java programmers. If you want to learn more about DataWeave 2.0, you can register for the DataWeave course. You now have the techniques necessary to successfully and perfectly transform JSON to XML using the DataWeave scripting language in your Mule applications. The function is called for each element in the JSON array and added as an attribute to the member element. In the DataWeave script below, a function is called that determines if a Simpson is of majority and can therefore vote. DataWeave provides a mechanism that allows the insertion of attributes into an XML element using the “ symbol followed by key-value pairs. The XML specification allows attributes to be defined for elements but the JSON specification does not have a direct equivalent. To transform this input JSON as a collection of elements we have to iterate over the items using the map function. Its structure includes a collection of elements within an array. Let’s build on this example and transform the more complex JSON object provided at the beginning of this post. To transform a JSON array into XML repeated elements, use object constructor curly braces and evaluation parenthesis i.e. ![]() To avoid multiple root issues, you must create a root element for the XML output. ![]() To overcome these issues DataWeave provides the following solutions:
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