General Imports, using jinja2 to populate templates into htmls.
import jinja2
import webapp2
Important import to use Users API:
from google.appengine.api import users
Setting of Jinja environment: [into the example the tehcnology selected to populate the information into the frontend]
JINJ...
I used for this example webapp2 to cover the routing.
from webapp2_extras.routes import RedirectRoute as Route
Import from views:
from views import MainPage
MainPage is the handler set into root "/":
urlpatterns = [
Route('/', MainPage),
]
Simple extract of index.html:
<div class="sign-in">
{% if user %}
[Passing the url we have the opportunity to logout the user]
<a href="{{ url|safe }}">LOG OUT</a>
[You can include here operations for user authenticated]
...
