title: Posting links to facebook wall from iPhone app
body: <p>I am posting to the facebook wall from an iPhone app. It works well when I just sends a message, but when I try to add a link the message is not posted on Facebook.</p>
  
  <p>Code:</p>
  
  <pre><code>NSString *link = @"http://www.foo.com";
  NSString *linkName = @"Bar";
  NSString *linkCaption = @"Foo Bar";
  NSString *linkDescription = @"Fooooooo Bar";
  NSString *message = @"Message";
  
  NSMutableDictionary* params = [NSMutableDictionary dictionaryWithObjectsAndKeys:
                                     kAppId, @"api_key",
                                     message, @"message",
                                     linkName, @"name",
                                     linkDescription, @"description",
                                     link, @"link",
                                     linkCaption, @"caption",
                                     nil];
  
  [_facebook requestWithGraphPath: @"me/feed"
                        andParams: params 
                    andHttpMethod: @"POST" 
                      andDelegate: self];
  </code></pre>
  
  <p>It is when I add the link and caption to the params dictionary that FaceBook will not post on the wall. I don't even get an error in <code>(void) request: (FBRequest *) request didFailWithError: (NSError *) error</code> so it seems Facebook thinks the request is ok.</p>