The decorator can do anything. In flask the decorator syntax is just shorthand for adding the route to a registry which is looked up every request. The source

The decorator can do anything. In flask the decorator syntax is just shorthand for adding the route to a registry which is looked up every request. The source code is pitifully small: https://bitbucket.org/mitsuhiko/flask/src/4d82231621fc/flask.py#cl-636 https://bitbucket.org/mitsuhiko/flask/src/4d82231621fc/flask...