ios - AFNetworking response object mapping -

i trying out afnetworking after coming restkit , wondering if there's simpler solution having of objects:

- (id)initwithattributes:(nsdictionary *)attributes {     // ... init      _userid = [[attributes valueforkeypath:@"id"] integervalue];     _username = [attributes valueforkeypath:@"username"];     _avatarimageurlstring = [attributes valueforkeypath:@"avatar_image.url"];      return self; } 

this how things appear in afnetworking basics example. looks might cumbersome i'm returning objects children. there easier way me this?

i saw there afincrementalstore referenced in this question. not want of information retrieved persist beyond current session didn't think right thing do.

thanks in advance help.