update

    NSMutableDictionary *item = [NSMutableDictionary dictionaryWithDictionary:self.item];
    [item setObject:self.nameTextField.text forKey:@"name"];

    [[CCHVaultService sharedService] updateItem:item completion:^(NSDictionary *carbonResponse, NSError *error) {
        if (error) {
            NSLog(@"Error %@",error);
        } else {
            NSLog(@"Success %@", carbonResponse);
        }
    }];