@IBAction func login(_ sender: Any) {

        let username = _username.text
        let password = _password.text

        let parameters = ["email": username, "password": password ]

        guard let url = URL(string:"http://localhost/myslim/api/logins" ) else {return}
        var request = URLRequest(url: url)
        request.httpMethod="POST"
        request.addValue("application/json", forHTTPHeaderField: "Content-Type")

        guard let httpBody = try? JSONSerialization.data(withJSONObject: parameters, options: []) else {
            return
        }

        request.httpBody = httpBody

        let session = URLSession.shared
        session.dataTask(with: request) { (data, response, error) in
            /*if let response = response {
             //print(response)
             }*/

            if let data = data {
                do {
                    let json = try JSONSerialization.jsonObject(with: data, options: []) as! [String:Any]
                    let msg = json["status"] as! String
                    let id = json["id"] as! String

                    if(msg == "error"){

                        let alertView = UIAlertView(title: "Oops!", message: "Erro login", delegate: nil, cancelButtonTitle: "OK")

                        alertView.show()

                    }else{

                        DispatchQueue.main.async{
                            AppDelegate.user_id = Int(id) as! Int;
                          self.performSegue(withIdentifier: "loginView", sender: sender)
                        }
                    }
                    //print(json)

                } catch {
                    print(error)
                }
            }
            }.resume()



    }