What is the best DataWeave pattern for XML to JSON attributes?

Bisetty's GitHub cookbook: explicitly select @ for attributes, map repeats to arrays, declare namespaces upfront.

Does DataWeave handle XML arrays automatically?

No—singles become strings. Force with map() or if-size checks for consistency.

Use real captured payloads in MUnit; cover nulls, empties, namespaces.

Automatic XML-to-JSON in DataWeave drops attributes and mangles arrays. One engineer's fix shipped to production, saving 7,500 daily responses.

DevTools Feed Apr 03, 2026 4 min read 12 views

Default DataWeave XML-to-JSON drops attributes and mishandles arrays—use explicit selectors to fix. 𝕏
Test with production-like data; edge cases kill naive transforms. 𝕏
This pattern scales to 7,500+ daily responses; standardize for resilient integrations. 𝕏

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#API integrations #DataWeave #MuleSoft #XML to JSON

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