Apex_web_service.make_request throws ORA-29273: HTTP request failed. How to get the soap fault XML?

Question

I am trying to call a web service using apex_web_service.make_request function.
It works fine when all the parameters are correct. However, when something is wrong in the request XML, it throws an exception instead of returning the soap:fault message:
ORA-29273: HTTP request failed
ORA-06512: at "SYS.UTL_HTTP", line 1369
ORA-29269: HTTP server error 500 - Internal Server Error
ORA-06512: at "APEX_040200.WWV_FLOW_WEBSERVICES_API", line 130
ORA-06512: at line 37
I need to get back the soap:fault and parse it to display a proper error message to the users (e.g. what was wrong with the input), yet the call throws an exception instead of returning it.
I am trying the exact same request from soapUI and it returns me the soap:fault below:
<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
   <soap:Body>
      <soap:Fault>
         <soap:Code>
            <soap:Value>soap:Receiver</soap:Value>
         </soap:Code>
         <soap:Reason>
            <soap:Text xml:lang="en">Fault occurred while processing.</soap:Text>
         </soap:Reason>
         <soap:Detail>
            <ns1:RegisterFault xmlns:ns1="http://www.exchangenetwork.net/wsdl/register/1">
               <description xmlns:ns2="http://www.exchangenetwork.net/wsdl/register/1">The security token has expired.</description>
               <errorCode xsi:type="ns2:RegisterErrorCode" xmlns:ns2="http://www.exchangenetwork.net/wsdl/register/1" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">E_TokenExpired</errorCode>
            </ns1:RegisterFault>
         </soap:Detail>
      </soap:Fault>
   </soap:Body>
</soap:Envelope>
How do I get this back from APEX?
Thanks!

Answer 1

Hi,
   I've just run into this.
   If the webservice returns a fault, such as:
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/"><soap:Body><soap:Fault><faultcode>soap:Server</faultcode><faultstring>INVALID_REQUESTER_INFO</faultstring></soap:Fault></soap:Body></soap:Envelope>
   then the user gets presented with an unfriendly error message and there's no chance to output a more friendly one.
   The response above is seen when testing the webservice, when run from the Form/Report page, we get something like:
soap:ServerINVALID_REQUESTER_INFO
Contact your application administrator.
OK
   When OK button is clicked everything is rolled back and we don't even get the fault XML.
   It would be good if Apex could be optionally set to not give the unfriendly messages, so that we could code such a message ourselves.
   Unless anybody has a workaround for this, I guess that I'll have to see if I can code this in PLSQL.
Regards,
Chris