I have a couple thousand books and I have been organising them since COVID broke out. I have been using BookBuddy+, but sadly its API is borderline non-existent and now that I am planning to sell some of the books, I'd like to build my own DB which I can use for e-commerce and automated catalogue generation and I need an app that can populate it. I don't really care about the DB it connects to, since I know my way around the more popular ones.
The app in question should be able to scan ISBN barcodes and retrieve corresponding book's data. As I said, it should be able to connect to a DB or at least have an API of its own. That's it, the rest I can take care of. I am ready to pay for the app. Any ideas?