React-Native fetch XML data

you can try https://github.com/connected-lab/react-native-xml2js ,

    const parseString = require('react-native-xml2js').parseString;

    fetch('link')
        .then(response => response.text())
        .then((response) => {
            parseString(response, function (err, result) {
                console.log(response)
            });
        }).catch((err) => {
            console.log('fetch', err)
        })

I use it to my project.

you can use npm install xmldom, now load DOMParser as below :

var DOMParser = require('xmldom').DOMParser

I use it to my project.

First of all - React Native using JavaScriptCore, which is just a javascript interpreter, so no Browser Object Model, no document object, no window, etc. That's a reason why you cannot use DOMParser for example.

Indeed React provides you a XMLHttpRequest wrapper, but it doesn't include responseXML.

I didn't found any solution for this, so I've just created my own library for that: react-native-xml which allows you to parse xml and make XPath queries for it:

let xml = require('NativeModules').RNMXml
xml.find('<doc a="V1">V2</doc>', 
         ['/doc/@a', '/doc'], 
          results => results.map(nodes => console.log(nodes[0]))) 
// Output: 
//  V1 
//  V2