Get the latest redirected URL in iOS 5?

Can someone please write the simplest working code that the last redirected url (nth) can get when I get the url for GET?

I know that I need to use asynchronous requests, but I cannot develop a complete working code that solves the problem.

I am using ios5, so I can use the latest added asynchronous built-in functions in ios5.

I have tried many things, but I have not yet succeeded. Using the code below, I am trying to send a receive request with parameters, but somehow these parameters are lost due to redirecting the site: (!

NSURLRequest *request = [NSURLRequest requestWithURL:urlOriginal];

[NSURLConnection 
sendAsynchronousRequest:request
queue:[NSOperationQueue mainQueue]
completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) 
{
    NSLog("the returned data should be the final data of the redirected url with parameters but it is not");
}];

}

EDIT

So here is what I did now:

NSURLRequest *requestOriginal = [NSURLRequest requestWithURL:urlOriginal];

 NSURLConnection *connection = [[NSURLConnection alloc] initWithRequest:requestOriginal delegate:self];

[connection start];

and delegate:

-(NSURLRequest *)connection:(NSURLConnection *)connection
        willSendRequest:(NSURLRequest *)request
       redirectResponse:(NSURLResponse *)redirectResponse
{

    if (redirectResponse) {
    NSMutableURLRequest *r = [request mutableCopy]; // original request
    [r setURL: [request URL]];
    return r;
} else {
     NSLog(@"redirecting to : %@", [request URL]);
    return request;
}
}

URL- , get.

, ? Handler?

edit2:

, :

• (void) connection: (NSURLConnection *) connection didReceiveResponse: (NSURLResponse *) response

• (void) : (NSURLConnection *) didReceiveData: (NSData *)

• (void) connection: (NSURLConnection *) connection didFailWithError: (NSError *) error

• (void) connectionDidFinishLoading: (NSURLConnection *)