soap response empty ios - ios

Question

i am sending a soap request. But no data is being returned. The web service does not return any error. I am unable to figure out what is wrong. Does it have something to do with the UTF8 Encoding? Please help. Below is my code:
NSString *xmlString = #"<ServiceCalls xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"><ServiceCall><Phone_No>033542390843</Phone_No></ServiceCall></ServiceCalls>";
NSString *soapMessage = [NSString stringWithFormat:#"<?xml version=\"1.0\" encoding=\"utf-8\"?>\n"
"<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/\">\n"
"<soap:Body>\n"
"<GetVehiclesByPhone_ServiceCall_Proc xmlns=\"http://tempuri.org/\">\n"
"<xmlStr>%#</xmlStr>\n"
"<m_LoginId>Username</m_LoginId>\n"
"<m_pass>Password</m_pass>\n"
"</GetVehiclesByPhone_ServiceCall_Proc>\n"
"</soap:Body>\n"
"</soap:Envelope>", xmlString];
NSLog(#"%#", soapMessage);
NSURL *url = [NSURL URLWithString:#"http://103.9.23.21/TPL_Web_Services/TPLInterface.asmx"];
NSMutableURLRequest *theRequest = [NSMutableURLRequest requestWithURL:url];
NSString *msgLength = [NSString stringWithFormat:#"%d", [soapMessage length]];
[theRequest addValue: #"text/xml; charset=utf-8" forHTTPHeaderField:#"Content-Type"];
[theRequest addValue: #"http://tempuri.org/GetVehiclesByPhone_ServiceCall_Proc" forHTTPHeaderField:#"SOAPAction"];
[theRequest addValue: msgLength forHTTPHeaderField:#"Content-Length"];
[theRequest setHTTPMethod:#"POST"];
[theRequest setHTTPBody: [soapMessage dataUsingEncoding:NSUTF8StringEncoding]];
NSURLResponse *response;
NSError *error;
NSData *webData = [NSURLConnection sendSynchronousRequest:theRequest returningResponse:&response error:&error];
if (webData != nil) {
NSString *data = [[NSString alloc] initWithData:webData encoding:NSUTF8StringEncoding];
NSLog(#"Data: %#", data);
if (error == nil) {
if ([data isEqualToString:#"True"] || [data isEqualToString:#"true"]) {
[self showSuccessfulAlert];
[self storeDefaults];
[self.dataLayer notifySplashRemoved];
}
else {
/*UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Invalid Data!" message:#"The phone no. you entered is not registered." delegate:nil cancelButtonTitle:#"OK" otherButtonTitles: nil];
[alert show];*/
sendSMS = YES;
}
}
else {
sendSMS = YES;
}
}
else {
sendSMS = YES;
}

Answer 1

You need to set the Content-Length properly: the content length is the length of the body data in bytes, not the length of the NSString, which is the number of UTF-16 code units:
NSData* body = [soapMessage dataUsingEncoding:NSUTF8StringEncoding];
NSString* bodyLength = [NSString stringWithFormat:#"%d", [body count]];
[theRequest addValue: bodyLength forHTTPHeaderField:#"Content-Length"];
[theRequest setHTTPBody:body];
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