DrupalCon Vienna 2017: Using JSON Web Tokens & Varnish to cache content for logged-in users

This talk explores the challenges and solutions of Varnish caching in Drupal, particularly when it involves logged-in users. The speaker discusses how JSON Web Tokens (JWT) can serve as an alternative method for storing session state, allowing for secure client-side management of session data. By leveraging JWT, Varnish can effectively validate sessions and generate cache variations for both logged-in and anonymous users without needing backend access. The session provides insights into optimizing cache performance with the appropriate Varnish configurations and JWT implementation.