gistfile1.txt

NSURL *urlToRemoteServer = [NSURL URLWithString:[NSString stringWithFormat:@"%@/some_resource.json%@", YourURLToRemoteServer, additionalParams]];
    
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:urlToRemoteServer
                                                       cachePolicy:NSURLRequestReloadIgnoringLocalAndRemoteCacheData
                                                   timeoutInterval:15];
    
[request setHTTPMethod: @"GET"];
NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:request delegate:self];
[connection start];