How to get and save the response in swift5 and Alamofire 5 beta version?

For Alamo 5 you have to use:

response.value

Try the following code, please:

         switch response.result {
                case .success(let value):
                    if let JSON = value as? [String: Any] {
                        let status = JSON["status"] as! String
                        print(status)
                    }
                case .failure(let error): break
                    // error handling
                }