Question

I’m trying to post a Facebook status update, using the Facebook iOS API, with a message and a link to a photo that is already on Facebook. I have already obtained the URL of the image using the result of an another graph API call. I have already set the App to have permissions for read_stream, publish_stream, offline_access and user_photos.

When I post the image as part of a status update, I receive the error “The operation couldn’t be completed. (facebookErrDomain error 10000.)”. However, if I attempt to post an image not already on Facebook, the status update posts fine and the image is shown.

This is strange as if I attempt to do the same in Facebook on the web by posting to my wall, I can include a link to the image that is in Facebook, which works fine.

Is there something I’m doing wrong attempting to include an image already in Facebook? The call I’m using is:

NSMutableDictionary *params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                               @"CIAO",@"message",
                               @"http://photos-g.ak.fbcdn.net/hphotos-ak-snc6/<rest_of_the_image_url>.jpg", @"picture",
                               nil];

[_facebook requestWithGraphPath:@"me/feed"
                      andParams:params
                  andHttpMethod:@"POST"
                    andDelegate:self];

what am I doing wrong?

Thanks!

Answer 1

You can no longer post images hosted by Facebook. From the Facebook Developers page on Stream Attachements:

Don’t reference images that are hosted on the fbcdn.net domain. The images associated with these URLs aren’t always optimized for stream stories and occasionally resulted in errors, leading to a poor user experience. Make sure your stream attachments don’t reference images with this domain. You should host the images locally.

However, the error you should have received is:

{
  error: {
    type: "OAuthException",
    message: "(#100) FBCDN image is not allowed in stream: http://graph.facebook.com/100001717292608/picture",
  }
}