Entity validation in Drupal 8

Drupal 8 has decoupled entity validation into a separate mechanism of its own. This allows for entities to be added by other means besides forms, like via a REST API. This session will present the entity validation API of Drupal 8 in detail, how it uses Symfony's validation component and builds on it, how to write your own custom validation and demonstrate on how to integrate a 3rd party validation component for your entity.