Mastering Flask Web Development - Second Edition

OpenID and OAuth

Integrating alternative login and registration options into your site becomes more important as time goes on. Every month, there is another announcement that passwords have been stolen from a popular website. Implementing the following login options means that our site's database never stores a password for that user. Verification is handled by a large brand-named company that the user already places their trust in. By using social logins, the amount of trust a user has to place in the website they are using is much higher. Your login process also becomes much shorter for the user, decreasing the barrier to entry to your app.

Socially authenticated users act as normal users, and unlike the password-based login methods, they ...