How to do XSD validation using XmlDocument's child(XmlElement).

[shreenu]

I am trying XSD validation where the XML is a child node from SOAP request XML, while passing the selected XmlElement to XSD validator getting error as it is taking entire SOAP request XML document for validation, not selected Element.

Please suggest how to achieve it.

Code:

const getXPathDoc = (doc, xpath, namespaces) => {
  return doc.get(xpath, namespaces);
};

const doc = XmlDocument.fromString(soapXML);
const schema = XmlDocument.fromBuffer(fs.readFileSync(xsdPath));
const validator = XsdValidator.fromDoc(schema);

const payloadDoc = getXPathDoc(doc, xmlCommonXpath, namespaces);  // Finding XML element for XSD validation

validator.validate(payloadDoc); // Validating XMLElement against XSD 

[jameslan]

The setter of XmlDocument.root could move node from other document as its own root.

Example:

const original = XmlDocument.fromString('<container><content>hello</content></container>');

const content = XmlDocument.create();
content.root = original.get('/container/content');

console.log(content.toString());
console.log(original.toString());

<?xml version="1.0"?>
<content>hello</content>

<?xml version="1.0"?>
<container/>

This could extract a subtree as a document.

I think validating a subtree is a validate requirement and extracting to a new document could be a workaround for now.
We'll track and address this requirement in a separate issue.