tokens: There 's a plugin which can do this for you : https://github.com/dmunch/couch_jwt_auth ( The repository is a fork , implementing additional functionality to the original one plus is compatible with CouchDB 2.0 . )
ner_tags: O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O B-Application B-Version O O