Thanks for the quick reply.
I'll try to clarify.
I'm looking at creating a mobile web app to add books to calibre by scanning isbn barcodes on my phone.
Right not I'm using calibre through the web content server started with calibre-server. If I understand correctly the content server is a cherry-py server. The content server has the rest endpoints
I did not know of the calibredb command line interface so this is great news if I can add books using an ISBN through it. If that's the case I could exec the command through the cherry-py server or make a new server to do the same. I can then add the rest endpoint to the cherry-py server and have my mobile app consume it.
Once again Thanks!