Sending an Open Graph message with video.wants_to_watch action

video_wants_to_watch.m

// In order to display a Open Graph Action in your Facebook Share Dialog (FBDialog), you can construct your code like this:

NSMutableDictionary<FBOpenGraphAction> *action = (NSMutableDictionary<FBOpenGraphAction> *)[FBGraphObject graphObject];
    NSMutableDictionary *graphObject = [FBGraphObject openGraphObjectForPostWithType:@"video.movie"
                                                                               title:@"My movie."
                                                                               image:@"http://www.mymovie.com/poster.jpg"
                                                                                 url:@"http://www.mymovie.com"
                                                                         description:@"This movie may contain adult material."];
    action[@"movie"] = graphObject;
    
    [FBDialogs presentMessageDialogWithOpenGraphAction:action
                                            actionType:@"video.wants_to_watch"
                                   previewPropertyName:@"movie"
                                               handler:^(FBAppCall *call, NSDictionary *results, NSError *error) {
        if (error) {
            NSLog(@"error: %@", [error localizedDescription]);
        } else {
            NSLog(@"results: %@", results);
        }
    }];