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Soap Response Delay
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Soap Response Delay


  • Subject: Soap Response Delay
  • From: Mustafa Tuğrul Özşahin <email@hidden>
  • Date: Wed, 17 Mar 2010 16:46:39 +0200

 Hi,
I am trying to get some information from a web service using soap request. When it returns a small amount of data (like a few lines of XML), it works fine but when it returns a large data (like an image coded as a byte array), the second request responses after a 25-30 second delay. If i wait 25 - 30 seconds after first request, then it responses immediately. The question is: Why can't i send soap requests repeatedly. Any idea about the reason of delay?
Thanks

Here is the piece of code:

------------------------
 
    NSLog (@"creating soap req");
    WSMethodInvocationRef soapReq = createSOAPRequest(url, method, namespace, params, paramOrder, reqHeaders);
    NSLog (@"created soap req");
    NSLog (@"creating soap result");  //after this message i wait a while
    result = (NSDictionary *)WSMethodInvocationInvoke(
soapReq);
    CFRelease(soapReq);
    NSLog (@"created soap result"); 
    NSLog(@"Result : %@ ",result);
-----------------------------

And that is the createSOAPRequest method:

WSMethodInvocationRef createSOAPRequest(NSURL *url,
                                        NSString *method,
                                        NSString *namespace,
                                        NSDictionary *params,
                                        NSArray *paramOrder,
                                        NSDictionary *reqHeaders)
{
    WSMethodInvocationRef soapReq = WSMethodInvocationCreate((CFURLRef)url,
                                                             (CFStringRef)method,
                                                             kWSSOAP2001Protocol);
    // set SOAP params
    WSMethodInvocationSetParameters(soapReq, (CFDictionaryRef)params, (CFArrayRef)paramOrder);
    // set method namespace
    WSMethodInvocationSetProperty(soapReq, kWSSOAPMethodNamespaceURI, (CFStringRef)namespace);
    // Add HTTP headers (with SOAPAction header)
    WSMethodInvocationSetProperty(soapReq, kWSHTTPExtraHeaders, (CFDictionaryRef)reqHeaders);
    // for good measure, make the request follow redirects.
   // WSMethodInvocationSetProperty(soapReq,    kWSHTTPFollowsRedirects, kCFBooleanTrue);
    // set debug props
    WSMethodInvocationSetProperty(soapReq, kWSDebugIncomingBody,    kCFBooleanFalse);
   WSMethodInvocationSetProperty(soapReq, kWSDebugIncomingHeaders, kCFBooleanFalse);
    WSMethodInvocationSetProperty(soapReq, kWSDebugOutgoingBody,    kCFBooleanFalse);
   WSMethodInvocationSetProperty(soapReq, kWSDebugOutgoingHeaders, kCFBooleanFalse);
    return soapReq;
}
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