I think this is what you need:

The XSLT Transform Editor is intended to take XML inputs and return XML outputs. Using it to accept and output JSON is tricky and requires wrapping the JSON string in a root XML element (here, <JSON>). This transform gets everything before "configuration", rebuilds "configuration" with a token containing your XML, and finishes with everything after the double quotes after "configuration".

Please note that the substring functions wrap their parameters in single quotes so they can look for double quotes, and this transform assumes you have an empty "configuration" tag in your JSON input. The same principle should work for any element but this exact transform expects "configuration".

BAO does not use strings. On the backend context items that contain strings actually contain an XML document with a single node. Even context items with the value "true" are actually "<value>true</value>" in BAO's memory. This means what you need is XML that contains a string that contains XML, for which BAO should interpret the root XML elements but treat everything else, including all further XML elements, as a string.

The closest I've been able to get is wrapping the JSON string in CDATA tags:

<JSON><![CDATA[

{

  "name": "WebServiceAdapterNew",

  "description":"New adapter configuration",

  "adapterType": "ro-adapter-ws",

  "version":"20.16.02.00",

  "revision": "1",

  "configuration":"<config><clear-asynchronous-cache>true</clear-asynchronous-cache><delay>30</delay></config>",

  "configurationDataType":"xml"

}]]>

</JSON>

The transform string(//JSON) then gives me this:

<result>

{

  "name": "WebServiceAdapterNew",

  "description":"New adapter configuration",

  "adapterType": "ro-adapter-ws",

  "version":"20.16.02.00",

  "revision": "1",

  "configuration":"&lt;config&gt;&lt;clear-asynchronous-cache&gt;true&lt;/clear-asynchronous-cache&gt;&lt;delay&gt;30&lt;/delay&gt;&lt;/config&gt;",

  "configurationDataType":"xml"

}

</result>

I don't know what your use case is so I can't test whether this will work for you.

Wrapping the entire JSON string in CDATA failed, but wrapping just the adapter configuration succeeded:

This transform outputs me a correct-looking XML document. I passed this to :AutoPilot-AD-Utilities:REST:Put with the XPath transform /JSON/text(). The adapter understood the request and passed it to BAO's REST API, and BAO updated the adapter configuration.

Use the workflow "Convert Input Parameters XML to JSON" in the latest 20.18.01 version of AutoPilot-OA-Common_Utilities in the folder AutoPilot-OA-Common_Utilities:BAO_Utilities:REST.