BWPM/App/Controllers/LoginController.cs

using Microsoft.AspNetCore.Mvc;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using APP.Models;


namespace APP.Controllers
{
    public class LoginController : Controller
    {
        public IActionResult Index()
        {
            return View();
        }
        public IActionResult Login(LoginModel model)
        {
            App.Helper.HttpClientHelper httpcli = new App.Helper.HttpClientHelper();

            string username = model.UserName;
            string password = model.Password;
            httpcli.CallService("user",username+','+password, "GET", null);
            if (httpcli.Results.resultstatus==true && httpcli.Results.daten !="[]")
            {
                APP.Models.SessionClass.UserName = "AAA";
                return Json(new { success = true });
            }
            else
            {
                return Json(new { error = "Kann nicht angemeldet werden!" });
            };

            return Json(new { error = "" });
        }
    }
}