Error 500 calling external web service from Navision

LnZ

Hi I'm trying to call a simple web service that returns the uppercase of a string, but I always get Error 500 Internal Server Error.
Following are the Web Service XML and my Navision code
Any help would be appreciated
LnZ
--

POST /WSNAV/Service.asmx HTTP/1.1
Host: localhost
Content-Type: text/xml; charset=utf-8
Content-Length: length
SOAPAction: "http://tempuri.org/UpString"

<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
  <soap:Body>
    <UpString xmlns="http://tempuri.org">
      <toUP>string</toUP>
    </UpString>
  </soap:Body>
</soap:Envelope>

Navision code

baseURL := 'http://localhost/WSNAV/Service.asmx/';
result := FALSE;
URL := baseURL+'UpString';
method := 'UpString';
namespace := 'http://tempuri.org';
parameters := '<toUP>prova</toUP>';
// Create XML Document
CREATE(xmldoc,TRUE,TRUE);
// Create SOAP Envelope
soapEnvelope := xmldoc.createElement('Soap:Envelope');
soapEnvelope.setAttribute('xmlns:Soap', 'http://schemas.xmlsoap.org/soap/envelope/');
xmldoc.appendChild(soapEnvelope);
// Create SOAP Body
soapBody := xmldoc.createElement('Soap:Body');
soapEnvelope.appendChild(soapBody);
// Create Method Element
soapMethod := xmldoc.createElement(method);
soapMethod.setAttribute('xmlns', namespace);
soapBody.appendChild(soapMethod);
// Transfer parameters by loading them into a XML Document and move them
CREATE(parametersXmlDoc,TRUE,TRUE);
parametersXmlDoc.loadXML('<parameters>'+parameters+'</parameters>');
IF parametersXmlDoc.firstChild.hasChildNodes THEN
BEGIN
  WHILE parametersXmlDoc.firstChild.childNodes.length>0 DO
  BEGIN
    node := parametersXmlDoc.firstChild.firstChild;
    node := parametersXmlDoc.firstChild.removeChild(node);
    soapMethod.appendChild(node);
  END;
END;
// Create XMLHTTP and SEND
CREATE(xmlhttp, TRUE, TRUE);
xmlhttp.open('POST', URL, FALSE);
xmlhttp.setRequestHeader('Content-type', 'text/xml; charset=utf-8');
xmlhttp.setRequestHeader('SOAPAction', method);
xmlhttp.send(xmldoc);
// If status is OK - Get Result XML
IF xmlhttp.status=200 THEN
BEGIN
  xmldoc := xmlhttp.responseXML;
  xmldoc.setProperty('SelectionLanguage','XPath');
  xmldoc.setProperty('SelectionNamespaces','xmlns:tns="'+namespace+'"');
  //How I can read the result??
  result := TRUE;
END
ELSE BEGIN
  MESSAGE(FORMAT(xmlhttp.status));
  MESSAGE(FORMAT(xmlhttp.statusText));
  MESSAGE(FORMAT(xmlhttp.responseText));
END;

LnZ

I have seen that if I call a web service without parameters everything works, Still have no idea on what is wrong in the parameters I pass to the web service.
LnZ

freddy.dk

The way you transfer the parameters seems wrong - the function you are calling is taking a string - that's what you should give it (not an XML structure under <parameters>.

I have a sample on my blog on how to call NAV Web Services from NAV - maybe that can help

http://blogs.msdn.com/freddyk/archive/2010/01/22/connecting-to-nav-web-services-from-microsoft-dynamics-nav-2009-sp1.aspx

LnZ

That's true, looking a the POST method definition of the webservice I have seen this

POST /WSNAV/Service.asmx/UpString HTTP/1.1
Host: localhost
Content-Type: application/x-www-form-urlencoded
Content-Length: length

toUP=string

But I' dont know how to pass this parameter as string, sorry but I'm a newbie ath this type of things
Thank You
LnZ

LnZ

Hi,
I have changed my code to pass parameters as string but I still get the same error,If I copy and paste my generated xml into SoapUI it works fine.
It seems a client problem of my navision function.
The exact error I get is this Error 500: System.InvalidOperationException: Request format is invalid
This is my xml for the call:

<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
<soap:Header/>
<soap:Body>
<UpString xmlns="http://tempuri.org">
<toUP>prova</toUP>
</UpString>
</soap:Body>
</soap:Envelope>

And this is my new code:

baseURL := 'http://localhost/WSNAV/Service.asmx/';
result := FALSE;
URL := baseURL+'UpString';
method := 'UpString';
namespace := 'http://tempuri.org';
// Create XML Document
CREATE(xmldoc,TRUE,TRUE);
// Create SOAP Envelope
soapEnvelope := xmldoc.createElement('soap:Envelope');
soapEnvelope.setAttribute('xmlns:soap', 'http://www.w3.org/2003/05/soap-envelope');
xmldoc.appendChild(soapEnvelope);
soapHeader := xmldoc.createElement('soap:Header');
soapEnvelope.appendChild(soapHeader);
// Create SOAP Body
soapBody := xmldoc.createElement('soap:Body');
soapParameters:= xmldoc.createElement('toUP');
soapParameters.text := 'prova';
soapEnvelope.appendChild(soapBody);
// Create Method Element
soapMethod := xmldoc.createElement(method);
soapMethod.setAttribute('xmlns', namespace);
soapMethod.appendChild(soapParameters);
soapBody.appendChild(soapMethod);
// Transfer parameters by loading them into a XML Document and move them
// Create XMLHTTP and SEND
CREATE(xmlhttp, TRUE, TRUE);
xmlhttp.open('POST', URL, FALSE);

xmlhttp.setRequestHeader('Content-type', 'application/soap+xml; charset=UTF-8');
xmlhttp.setRequestHeader('Content-Length',FORMAT(STRLEN(xmldoc.xml)));
MESSAGE(FORMAT(STRLEN(xmldoc.xml)));
xmlhttp.setRequestHeader('SOAPAction', method);
// If status is OK - Get Result XML
IF xmlhttp.status=200 THEN
BEGIN
  xmldoc := xmlhttp.responseXML;
  xmldoc.setProperty('SelectionLanguage','XPath');
  xmldoc.setProperty('SelectionNamespaces','xmlns:tns="'+namespace+'"');
  result := TRUE;
END
ELSE BEGIN
  MESSAGE(FORMAT(xmlhttp.status));
  MESSAGE(FORMAT(xmlhttp.statusText));
  MESSAGE(FORMAT(xmlhttp.responseText));
END;

Any Idea?
LnZ

LnZ

Solved, it was a problem on the soap definition, the other developer chganged the namespace without advising me.