// 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());
}