Webportal/WebPortal/Pulsa/Controllers/LanguageController.cs

using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Localization;
using Microsoft.AspNetCore.Mvc;
using System;
using System.Globalization;
using System.Threading;

namespace WebPortal.Controllers
{
    public class LanguageController : Controller
    {
        [HttpPost]
        public IActionResult ChangeLanguage(string LanguageAbbrevation, string returnUrl)
        {
            Response.Cookies.Append(
               CookieRequestCultureProvider.DefaultCookieName,
               CookieRequestCultureProvider.MakeCookieValue(new RequestCulture(LanguageAbbrevation)),
               new CookieOptions { Expires = DateTimeOffset.UtcNow.AddYears(1) }
            );
            //return LocalRedirect(returnUrl);
            return Json(new { error = "0" });
        }
    }
}