Objective-c Check file size from URL without downloading

Question

I need to check the size of file from a URL. I get the file size perfectly when downloading file with AFNetworking.

AFHTTPRequestOperation *operation = [clie         


        

Answer 1

If the server supports it you can make a request to just get the headers (HEAD, as opposed to GET) without the actual data payload and this should include the Content-Length.

If you can't do that then you need to start the download and use expectedContentLength of the NSURLResponse.

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Basically, create an instance of NSMutableURLRequest and call setHTTPMethod: with the method parameter set to @"HEAD" (to replace the default which is GET). Then send that to the server as you currently request for the full set of data (same URL).