Alamofire.request(url, method: .get, parameters: nil, encoding: JSONEncoding.default)
            .responseJSON { response in

                if let status = response.response?.statusCode {
                    switch(status){
                    case 200:

                        self.allResponse = response.result.value as! NSDictionary

                        if let categories = self.allResponse.value(forKey: "categories") as? [[String: AnyObject]] {
                            for category in categories {
                                self.categories.append(Category(dict: category))
                            }
                        }

                        self.collectionView.reloadData()
                    default:
                        print("error with response status: (status)")
                    }
                }
        }