Say I want to create a Chrome extension to let me tag YouTube videos (with more advanced tags than what the built in playlists can provide). Where do I store these tags? I could of course use YouTube's own "datastructures" such as playlists and the notes for each playlist item, but that quickly gets hairy/hacky. Is there some kind of DBaaS that easily allows me to tie metadata to each video, with a simple REST API?
Hypothes.is supports open and public annotations of arbitrary URLs, including tags and comments, but the intent is that all tags and annotations are public.<p>It does have an API, and can work via bookmarklets, or by linking to pages by prepending <a href="https://via.hypothes.is/" rel="nofollow">https://via.hypothes.is/</a>
I guess <a href="https://firebase.google.com/" rel="nofollow">https://firebase.google.com/</a> or something similar is what I'm looking for :)