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Re: How to get remote metadata
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Re: How to get remote metadata


  • Subject: Re: How to get remote metadata
  • From: Mike Abdullah <email@hidden>
  • Date: Sun, 27 Sep 2015 18:31:07 +0100

> On 27 Sep 2015, at 18:08, Gerriet M. Denkmann <email@hidden> wrote:
>
> I want to get some metadata for a remote file.
> I tried:
>
> NSString *path = @"/Public/UNIDATA/Blocks.txt";
> NSURL *icuBlocksUrl = [ [ NSURL alloc ] initWithScheme: @"http"  host: @"unicode.org"  path: path ];
> NSArray *keys = @[ NSURLContentModificationDateKey, NSURLCreationDateKey, NSURLFileSizeKey ];
> NSError *outError;
> NSDictionary *icuDict = [ icuBlocksUrl resourceValuesForKeys: keys  error: &outError ];
>
> Now icuDict is non-nil but empty.
>
> What am I doing wrong?
>
> Gerriet.
>
> P.S.
>
> Just seen in small print: “This method applies only to URLs that represent file system resources.”
>
> So this is not expected to work. What else can I do?

Probably the best thing to do is to use NSURLSession to send a HEAD request to the server, and pick the information you want out of the response headers.


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      • From: "Gerriet M. Denkmann" <email@hidden>
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 >How to get remote metadata (From: "Gerriet M. Denkmann" <email@hidden>)

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