GitHub - guillaumebriday/jsonapi-scopes: This gem allows you to filter and sort an ActiveRecord relation based on a request, following the JSON:API specification as closely as possible.
GitHub - hanipcode/mongoose-jsonapi-filter: easily map jsonapi filter in query string into mongoose schema
![regression] Impossible to filter for resources with an empty relationship object in JSON:API 2.x [#3025372] | Drupal.org regression] Impossible to filter for resources with an empty relationship object in JSON:API 2.x [#3025372] | Drupal.org](https://www.drupal.org/files/issues/2019-01-11/2019-01-11_15-06-26.png)