Explain how can you structure a large Flask application ?

To structure a large flask application, one needs to follow these steps:

1. Connect to the functions and then move them to various files, as long as users are assured that it will get imported as the applications start
2. Then use blueprints to assign the views to various categories such as auth, backend, profile, etc.
3. Then use the hidden Werkzeug URL map and then register functions on a central URL map.