Mastering Flask Web Development - Second Edition

OpenID

To integrate OpenID authentication with our application, we are going to use a new Flask extension named Flask-OpenID, implemented by the Flask creator itself. As always, the extension needs to be added to the requirements.txt file, as follows:

...Flask-OpenID...

Our app will also need a couple of things to implement OpenID:

• A new form object
• The form validation in the login and registration pages
• A callback after the form submission to log the user in or create a new user

In the auth/__init__.py file, the OpenID object can be initialized as follows:

...from flask_openid import OpenID...  
oid = OpenID() 

In the create_module function, the oid object is registered to the app object, as follows:

def create_module(app, **kwargs ...