Google books api returns missing parameters
问题 I am making a react app that searches for a book by title and returns the results. It's mostly working fine, but for some titles searched (such as "hello") it can't get the results because the parameters are missing. Specially, the "amount" value is missing, and it can get me e-books that are not for sale even if I add the filter=paid-ebooks param while fetching the api. Using projection=full doesn't help either. For example, when I call the api with https://www.googleapis.com/books/v1