public IActionResult RejectRequest(string id)
        {
            var claimsIdentity = (ClaimsIdentity)this.User.Identity;
            var claim          = claimsIdentity.FindFirst(ClaimTypes.NameIdentifier);

            if (claim != null)
            {
                var userId = claim.Value;
                _context.changeRequestStatus(id, userId, Status.RequestRejected);
            }
            return(Json("success"));
        }