public async Task <IActionResult> Get()
        {
            var entityQuery = _aircraftService.GetAircrafts();

            var filter = HttpContext.Request.Query["filter"].ToString();

            if (!string.IsNullOrEmpty(filter) && filter != "{}")
            {
                var filterVals = (JObject)JsonConvert.DeserializeObject(HttpContext.Request.Query["filter"]);
                foreach (var f in filterVals)
                {
                    entityQuery = entityQuery.Where($"{f.Key}.Contains(@0)", f.Value.ToString());
                }
            }
            var count = entityQuery.Count();


            if (!string.IsNullOrEmpty((HttpContext.Request.Query["sort"])))
            {
                var sortVal   = JsonConvert.DeserializeObject <List <string> >((HttpContext.Request.Query["sort"]));
                var condition = sortVal.First();
                var order     = sortVal.Last() == "ASC" ? "" : "descending";
                entityQuery = entityQuery.OrderBy($"{condition} {order}");
            }

            var range = JsonConvert.DeserializeObject <List <string> >((HttpContext.Request.Query["range"]));
            var from  = Convert.ToInt32(range.First());
            var to    = Convert.ToInt32(range.Last());

            entityQuery = entityQuery.Skip(from).Take(to - from + 1);


            Response.Headers.Add("Access-Control-Expose-Headers", "Content-Range");
            Response.Headers.Add("Content-Range", $"{typeof(Aircraft).Name.ToLower()} {from}-{to}/{count}");
            //return new JsonResult(entityQuery.ToListAsync());
            return(Ok(await entityQuery.ToListAsync()));
        }