public async Task <IEnumerable <BookItem> > GetBooks(IEnumerable <ulong> isbnNumbers)
{
InMemoryBookRepository.ValidateIsbnNumbers(isbnNumbers);
string requestUri = $"/api/books?bibkeys={CombineIsbnNumbers(isbnNumbers)}&format=json";
return(await SendHttpRequest(requestUri));
}
public async Task <IEnumerable <BookItem> > GetAllBooks()
{
var inMemoryBookIds = InMemoryBookRepository.GetAllBookIds();
return(await SendHttpRequest(
$"/api/books?bibkeys={CombineIsbnNumbers(inMemoryBookIds)}&format=json"
));
}
