On entity definition removed the entity reference nested fields functionality.
Add "uuid" claim to token.
Make the query for files like Drupal does.
Remove from view serialiser default image for a content type.
Created new route for listing files.
Added jsonapi_file module to info.yml.
Updated entity definition in order to send the correct timestamp for date fields.
OpenStory is an open source editorial interface for Drupal sites, that offers a more user-friendly way for editors to create and edit all forms
of digital content. OpenStory module provides a list of services (RESTfull services) that are used to give data to the interface.