// get magazineIds by each category
        public static async Task <MagazineIdsByCategory> GetMagazineIdByCategoryAsync(string token, string category, ApiService service, CancellationToken cancelToken)
        {
            var magazineResponse = await service.GetMagazineByCategoryByApiAsync(token, category, cancelToken);

            return(magazineResponse.Data.GroupBy(x => x.Category).Select(x =>
                                                                         new MagazineIdsByCategory
            {
                Name = x.Key,
                Ids = x.Select(z => z.Id).ToList()
            }).FirstOrDefault());
        }
        //  get magazine Id by categories after getting categories from categories api call
        public static async Task <List <MagazineIdsByCategory> > GetMagazineIdsByCategoriesAsync(string token, List <string> categories, ApiService service, CancellationToken cancelToken)
        {
            var magazineIdsByCategories = categories.Select(async s => await GetMagazineIdByCategoryAsync(token, s, service, cancelToken)).ToList();

            return((await Task.WhenAll(magazineIdsByCategories)).ToList());
        }