public async Task <AllBookOutput> GetAllByTagIdAsync(AllBookInput <int> input)
{
var tag = await _tagCache.GetAsync(input.Id);
if (tag == null)
{
throw new UserFriendlyException(404, L("PageNotFoundTitle"), L("PageNotFoundDetails"));
}
var builder = new BookByTag(input.Id);
var books = await GetAll(input, builder);
var header = L("BookByTagHeader", tag.Name);
return(new AllBookOutput(books, header));
}