Node.js NodeList to XML string

Question

I have some XML data that I need to handle in Node.js. I need to strip an envelope (SOAP) and then just return the payload/body och the envelope.

I get it as a DOM Document into my code and I can easily find the Body content and get that into a NodeList object.

Now I'd like to return the NodeList as a "XML String" but I haven't been able to find any way of doing this... What I basically need is a XML.stringify() (same as JSON.stringify()) but there doesn't seem to be any such function.

I've tried to write a "stringify()" myself but as there are attributes and namespaces in the XML it becomes very tricky...

flapjack17 · Accepted Answer · 2017-02-09 17:31:55Z

1

This might help you out.

function nodeListToString(nodeList){
    return [].slice.call(nodeList).reduce((str, x) =>{
        return str+=x.outerHTML;
    }, '');
}

calling Array.prototype.slice.call() on a NodeList object converts it to an array, we can then use the arrays reduce method. reduce then iterates over everything in the array transforming it to the desired formt, read up on it here.

edited Feb 9, 2017 at 17:31

answered Feb 9, 2017 at 17:12

flapjack17

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3 Comments

flapjack17 Over a year ago

Sorry, you can also do [].slice.call() for shorter code.

Anders Over a year ago

Thanks! I am actually not using a "HTML" environment but a plain Node.js implementation so I don't have ".outerHTML" available it seems.

flapjack17 Over a year ago

ah sorry, I haven't done much development is node, and am not sure what soap is. When you say you have a NodeList, is it an array of json objects like whats shown here npmjs.com/package/soap#overriding-the-attributes-key

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