Скачать или смотреть How to Update XML Values Using DataWeave in MuleSoft

Learn how to easily update specific values in XML files using DataWeave in MuleSoft. This guide walks you through a practical solution to modify XML data effectively.
---
This video is based on the question https://stackoverflow.com/q/67522002/ asked by the user 'jarmstrongnz' ( https://stackoverflow.com/u/5900819/ ) and on the answer https://stackoverflow.com/a/67524601/ provided by the user 'aled' ( https://stackoverflow.com/u/721855/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Update value after loading xml file

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Update XML Values Using DataWeave in MuleSoft

In the world of data integration, handling XML files is a common responsibility. Often, you might need to read XML data, modify certain values, and then use the updated data for further processing. In this guide, we will guide you through the process of updating a specific XML value after loading it with the readUrl command in MuleSoft's DataWeave.

The Problem

Imagine you have the following XML file structure that you loaded with the readUrl command:

[[See Video to Reveal this Text or Code Snippet]]

You need to update the <e> element's value from false to true within the same DataWeave script where you're reading the XML. How can you achieve this with ease?

The Solution

In Mule 4.3.0 and later, you can leverage the update operator in DataWeave to change the values of XML nodes dynamically. Below is a simple yet effective way to modify the <e> value within your existing XML structure.

Step-by-Step Breakdown

Reading the XML: First, you'll use the readUrl function to load your XML file. Ensure that the correct MIME type is set (application/xml).

Updating the Value: Utilize the update operator to specify the path to the element you want to change, along with the new value you wish to set.

Example Code

Here's an example of how your DataWeave script will look:

[[See Video to Reveal this Text or Code Snippet]]

Explanation of the Code

%dw 2.0: This line specifies the DataWeave version.

output application/xml: Indicates that the output format will be XML.

ns soapenv http://schemas.xmlsoap.org/soap/envel... Declares a namespace for the SOAP envelope, enabling easier reference to elements within that namespace.

readUrl("...", "application/xml"): Replace ... with the actual URL or file path of your XML document.

update {...}: Here is where the magic happens. The path to <e> within the loaded XML is specified, and the new value true is assigned to it.

Conclusion

In just a few straightforward steps, you can efficiently update values within your XML files using DataWeave in MuleSoft. This capability is crucial for any developer working with XML, as real-time data modification often arises in data integration tasks.

Feel free to try this approach in your MuleSoft project, and you’ll find it not only improves your workflow but also enhances your data management capabilities.

Happy coding!