Not able to hit server with sendSynchronous method - iphone

Question

I am using a synchronous request to send an image as hexa string to a server. I am not able to hit the server if I send hexa string of images of resolution 200x150 but I am able to get response from server if send the same image at a lower resolution like 100x75.
NSMutableString *urlString = [NSMutableString stringWithString:#"http://xxxxxx:8080/GeoLocationSave/ReceiveImage"];
UIImage *sample = [UIImage imageNamed:#"ip_addphoto_100x75#2x.png"];
NSData *imgData = UIImagePNGRepresentation(sample);
[urlString appendString:#"?image="];
[urlString appendString:hexImage];
NSError *error;
error=nil;
NSURLResponse *response;
response=nil;
NSURL *url = [NSURL URLWithString:urlString];
NSData *urlData = [NSURLConnection sendSynchronousRequest:[NSURLRequest requestWithURL:url] returningResponse:&response error:&error];
The length of urlData is 0 for a higher resolution image. Log value of imageData for both images are perfect. I don't see any entry point log in server for higher resolution image.

Answer 1

NSData *urlData = [NSURLConnection sendSynchronousRequest:[NSURLRequest requestWithURL:urlString]
returningResponse:&response
error:&error];
NSString *result = [[NSString alloc] initWithData:urlData
encoding:NSUTF8StringEncoding];
NSLog(#"return: %#" , result); // to see the response
You're using a URL here with [NSURLRequest requestWithURL:url], but above you use urlString. Where do you set URL equal to something?

Answer 2

Hi guys i found what mistake i was making. I was too ridiculous to push data as large as 8000 bytes through HTTP Get method. I noted that if the url length is greater than 8000 bytes it doesn't hit the server. So i just moved over to HTTP POST method as in case if image taken through camera (which can can easily get past the 8000 bytes length) is to be sent to server it wouldn't hit the server.