CODEWITHSUNDEEP
xmlnode.js
rexposadas
rexposadas

Reputation: 3189

How to get value from XML string with Node.js

Let's say you have this xml:

<yyy:response xmlns:xxx='http://domain.com'> 
    <yyy:success> 
        <yyy:data>some-value</yyy:data> 
    </yyy:success> 
</yyy:response>

How would I retrieve the value in between <yyy:data> using Node.js?

Thanks.

Upvotes: 9

Views: 30216

Answers (6)

Manoj Thapliyal
Manoj Thapliyal

Reputation: 577

Use XMLDOM library A JavaScript implementation of W3C DOM for Node.js, Rhino and the browser. Fully compatible with W3C DOM level2; and some compatible with level3. Supports DOMParser and XMLSerializer interface such as in browser.

Upvotes: 0

Anh Thang Bui
Anh Thang Bui

Reputation: 196

You can do it easier with camaro

const camaro = require('camaro')

const xml = `<yyy:response xmlns:xxx='http://example.com'> <yyy:success><yyy:data>some-value</yyy:data> </yyy:success></yyy:response>`

const template = {
    data: '//yyy:data'
}

console.log(camaro(xml, template))

Output:

{ data: 'some-value' }

Upvotes: 6

Daphoque
Daphoque

Reputation: 4678

You don't have to parse it for data extraction, simply use regexp :

  str = "<yyy:response xmlns:xxx='http://example.com'> <yyy:success><yyy:data>some-value</yyy:data> </yyy:success></yyy:response>";
  var re = new RegExp("<yyy:data>(.*?)</yyy:data?>", "gmi");

  while(res = re.exec(str)){ console.log(res[1])}

 // some-value

Upvotes: 3

sekar Raj
sekar Raj

Reputation: 1

There are plenty of methods available to extract information from xml file, I have used xpath select method to fetch the tag values. https://cloudtechnzly.blogspot.in/2017/07/how-to-extract-information-from-xml.html

Upvotes: -4

Vadim Baryshev
Vadim Baryshev

Reputation: 26219

node-xml2js library will help you.

var xml2js = require('xml2js');

var parser = new xml2js.Parser();
var xml = '\
<yyy:response xmlns:xxx="http://domain.com">\
    <yyy:success>\
        <yyy:data>some-value</yyy:data>\
    </yyy:success>\
</yyy:response>';
parser.parseString(xml, function (err, result) {
    console.dir(result['yyy:success']['yyy:data']);
});

Upvotes: 13

ming_codes
ming_codes

Reputation: 2922

First, you'll need a library to parse the XML. Core Node does not provide XML parsing.

You'll find a list of them here: https://github.com/joyent/node/wiki/modules#wiki-parsers-xml

I would recommend using libxmljs

Upvotes: 1

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