Check if NSURL returns 404

Question

I need to check whether a URL (represented by a NSURL) is available or returns 404. What is the best way to achieve that?

I would prefer a way to check this without

Answer 1

I used the answer from woodmantech above, but changed it based on what I have seen on other similar questions here so that it does not download the whole file to see if it exists.

I changed NSURLRequest to NSMutableURLRequest, and added:

[request setHTTPMethod:@"HEAD"];

This seems to work fine. I am working on my first app, so no real experience yet. Thanks everyone.

 NSMutableURLRequest* request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:url] cachePolicy:NSURLRequestUseProtocolCachePolicy timeoutInterval:5.0];
    [request setHTTPMethod:@"HEAD"];
    NSHTTPURLResponse* response = nil;
    NSError* error = nil;
    [NSURLConnection sendSynchronousRequest:request returningResponse:&response error:&error];
    NSLog(@"statusCode = %d", [response statusCode]);