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POError when consuming a web service with JavaScript
 

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  1. POError when consuming a web service with JavaScript
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    <p>I am trying to consume a web service ( <a href="http://www.webservicex.net/CurrencyConvertor.asmx?wsdl" rel="nofollow">http://www.webservicex.net/CurrencyConvertor.asmx?wsdl</a> ) using JavaScript:</p> <pre><code>&lt;script type="text/javascript"&gt; function soap() { var xmlhttp = new XMLHttpRequest(); xmlhttp.open('GET', 'http://www.webservicex.net/CurrencyConvertor.asmx?wsdl',true); var sr = '&lt;?xml version="1.0" encoding="utf-8"?&gt;' + '&lt;soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/" xmlns:web="http://www.webserviceX.NET/"&gt;'+ '&lt;soapenv: Header/&gt;'+ '&lt;soapenv: Body&gt;'+ '&lt;web:ConversionRate&gt;'+ '&lt;web:FromCurrency&gt;EUR&lt;/web:FromCurrency&gt;'+ '&lt;web:ToCurrency&gt;TND&lt;/web:ToCurrency&gt;'+ '&lt;/web:ConversionRate&gt;'+ '&lt;/soapenv: Body&gt;'+ '&lt;/soapenv:Envelope&gt;'; xmlhttp.onreadystatechange = function (e) { alert('onready'); if (xmlhttp.readyState == 4) { if (xmlhttp.status == 200) { alert('done use firebug to see response'); } } if (xmlhttp.readyState == 0) { alert('open() has not been called yet'); } if (xmlhttp.readyState == 1) { alert('send() has not been called yet'); } if (xmlhttp.readyState == 2) { alert('send() has been called, ...'); } if (xmlhttp.readyState == 3) { alert('Interactive - Downloading'); } else alert('Consuming Error '+e.message); } // Send the POST request xmlhttp.setRequestHeader("SOAPAction", "http://www.webservicex.net/CurrencyConvertor/"); xmlhttp.setRequestHeader('Content-Type', 'text/xml'); xmlhttp.send(sr); alert("Hi WS"); // send request // ... } &lt;/script&gt; &lt;/head&gt; &lt;body&gt; &lt;form&gt; &lt;input type="button" value="WS" onclick="soap();"&gt; &lt;/form&gt; &lt;/form&gt; </code></pre> <p>In the execution I got the different messages mentioned in the <code>onreadystatechange()</code> function (even the error one!) but I couldn't know how to get the answer returned by the web service (I tried with this line <code>alert(xmlhttp.responseXML);</code> but in vain ), I don't know if I am doing it right and how to display the web service reply.</p>
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    1. PTQuestion
    1. USPeter O.
    1. USuser1444393
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    1. This table or related slice is empty.
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    1. COYou won't be able to consume that web service like that due [same-origin policy](http://en.wikipedia.org/wiki/Same-origin_policy) restrictions
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      1. POError when consuming a web service with JavaScript
      1. USClaudio Redi
    2. COI read from this topic (http://stackoverflow.com/questions/15453910/xmlhttprequest-get-in-javascript-does-not-give-response?rq=1), that I should create a function called processRequest. In there you should check if xmlHttp.readyState is 4. If it isn't, just wait for the function to be called again. This is stronge, because I got the alerts displayed many times (not one time) and finally I got the error. Do you have any solutions for this problem? I want to consume this web service. Thanks
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      1. POError when consuming a web service with JavaScript
      1. USuser1444393
 

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