Need to use book/review_counts with ASINs

[Rosen]

I'm hoping to use the API to retrieve ratings for Kindle books. However, most of the books do not have ISBNs, just ASINs and Goodreads book IDs.

book/review_counts doesn't seem to work with ASINs or book IDs. Is there a way to get rating data without an ISBN, please?

Many thanks.

[Ettore]

Hi Rosen, Amazon doesn't issue ISBNs for Kindle books, only ASINs.

Unfortunately book/review_counts only works with ISBNs at the moment. You can use the book/show or book/title api to get book data (including ratings) on a per book basis.