Controllers

Now that configured routes, the home_controller.py file must contain the HomeController class, registering the action.

from flask import render_template

class HomeController:
    def index(self):
        return render_template("index.html")

Callbacks

You can use the callbacks as before_request and after_request to called the function before or after request... See:

class HomeController:
    before_request = dict(callback="hi", actions="index")

    def index(self):
        return "home"

    def hi(self):
        ...

The method hi(self) will be called whenever the visitors access the controller.