A simple example of calling one of my custom connection manager methods with a success and failure block, a-la AFNetworking

simpleDispatchExample

dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
	[[EDAConnectionManager sharedManager] getQuestionsWithSuccess:^(NSArray *questions) {
                self.questions = questions;
                dispatch_async(dispatch_get_main_queue(), ^{
        	            [self.refreshControl endRefreshing];
                	    [self.tableView reloadData];
                });
            }failure:^(NSError *error) {
                NSLog(@"error: %@", [error localizedDescription]);
        }];
});