The XML String action is used to convert between XML formatted strings and actual XML data. This is often required when communicating with web services that do not provide full XML data, but instead return a string containing the XML content to allow for flexibility.
The mode parameter indicates in which direction the conversion should take place. This can either be from a string into XML, or from an XML structure into a formatted string.
The first mode is usually used on the response received from a remote service, and the second mode before calling a remote service.
The location parameter is used to indicate which section of the data the conversion should be applied to. If the 'String to XML' mode is used, then the text content of the node selected by the location XPath will be converted into an XML structure. IF the 'XML to String' mode is used, the the node selected by the XPath will be replaced with it's string representation.
