public void getData(string userTextbox, string passwordTextbox)
        {
            if (userTextbox == "")
            {
                alertView("Error", "You didn't entered an adress mail.");
            }
            else
            {
                var client  = new RestClient("http://127.0.0.1:8000/users");
                var request = new RestRequest("/" + userTextbox, Method.GET);
                request.AddHeader("Content-Type", "application/json");
                IRestResponse response = client.Execute(request);
                var           content  = response.Content;
                if (content == "")
                {
                    alertView("Error", "You entered a wrong adress mail");
                    clearText();
                }
                else
                {
                    try
                    {
                        JObject jObject = JObject.Parse(content);

                        Email.value     = (string)jObject["email"];
                        Password.value  = (string)jObject["password"];
                        Firstname.value = (string)jObject["firstname"];
                        Lastname.value  = (string)jObject["lastname"];
                        Age.value       = (int)jObject["age"];
                        Banned.value    = (int)jObject["banned"];
                        Role.value      = (string)jObject["role"];

                        if (passwordTextbox == Password.value)
                        {
                            userSaving caca = new userSaving
                            {
                                email    = Email.value,
                                password = Password.value
                            };
                            string json = JsonConvert.SerializeObject(caca);
                            saveCredentials(json);
                            alertView("Success", "Good credentials");
                            ShowAcceuil();
                        }
                        else
                        {
                            alertView("Error", "You entered a wrong password");
                        }
                    }
                    catch (Exception ex)
                    {
                        var error = ex.ToString();
                        alertView("Error", error);
                        Console.WriteLine(content);
                        alertView("Content", content);
                        alertView("Response", response.ToString());
                    }
                }
            }
        }
        public void retrieveData()
        {
            try
            {
                var documents = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
                var filename  = Path.Combine(documents, "informations.json");
                var text      = File.ReadAllText(filename);

                savedTxt.value = text;

                JObject jObject = JObject.Parse(text);

                userSaving groscaca = new userSaving
                {
                    email    = (string)jObject["email"],
                    password = (string)jObject["password"]
                };

                var client  = new RestClient("http://127.0.0.1:8000/users");
                var request = new RestRequest("/" + groscaca.email, Method.GET);
                request.AddHeader("Content-Type", "application/json");
                IRestResponse response = client.Execute(request);
                var           content  = response.Content;

                JObject jObject2 = JObject.Parse(content);

                Email.value     = (string)jObject2["email"];
                Password.value  = (string)jObject2["password"];
                Firstname.value = (string)jObject2["firstname"];
                Lastname.value  = (string)jObject2["lastname"];
                Age.value       = (int)jObject2["age"];
                Banned.value    = (int)jObject2["banned"];
                Role.value      = (string)jObject2["role"];

                if (groscaca.password == Password.value)
                {
                    ShowAcceuil();
                }
                else
                {
                    alertView("PUTAIN", "CA N'A AUCUN PUTAIN DE SENS");
                }
            }
            catch (Exception ex)
            {
                if (savedTxt.value == "")
                {
                    Console.WriteLine("First connexion");
                }
                else
                {
                    alertView("", ex.ToString());
                }
            }
        }