Simplest SOAP example

Question

What is the simplest SOAP example using Javascript?

To be as useful as possible, the answer should:

• Be functional (in other words actually work)
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Answer 1

There are many quirks in the way browsers handle XMLHttpRequest, this JS code will work across all browsers:
https://github.com/ilinsky/xmlhttprequest

This JS code converts XML into easy to use JavaScript objects:
http://www.terracoder.com/index.php/xml-objectifier

The JS code above can be included in the page to meet your no external library requirement.

var symbol = "MSFT"; 
var xmlhttp = new XMLHttpRequest();
xmlhttp.open("POST", "http://www.webservicex.net/stockquote.asmx?op=GetQuote",true);
xmlhttp.onreadystatechange=function() {
 if (xmlhttp.readyState == 4) {
  alert(xmlhttp.responseText);
  // http://www.terracoder.com convert XML to JSON 
  var json = XMLObjectifier.xmlToJSON(xmlhttp.responseXML);
  var result = json.Body[0].GetQuoteResponse[0].GetQuoteResult[0].Text;
  // Result text is escaped XML string, convert string to XML object then convert to JSON object
  json = XMLObjectifier.xmlToJSON(XMLObjectifier.textToXML(result));
  alert(symbol + ' Stock Quote: $' + json.Stock[0].Last[0].Text); 
 }
}
xmlhttp.setRequestHeader("SOAPAction", "http://www.webserviceX.NET/GetQuote");
xmlhttp.setRequestHeader("Content-Type", "text/xml");
var xml = '' +
 '' + 
   ' ' +
     ' ' +
       '' + symbol + ' ' +
     ' ' +
   ' ' +
 '';
xmlhttp.send(xml);
// ...Include Google and Terracoder JS code here...

Two other options:

• JavaScript SOAP client:
  http://www.guru4.net/articoli/javascript-soap-client/en/

• Generate JavaScript from a WSDL:
  https://cwiki.apache.org/confluence/display/CXF20DOC/WSDL+to+Javascript