Unable to delete a node which has access control with Group

[kylehuynh205]

The module: https://www.drupal.org/project/triplestore_indexer

How to reproduce?

• Have the isle-dc up running
• Create a node with a media
• Create a group
• Assign the newly created node to that newly created group
• Delete the node, the white screen will appear

Diagnosis

• Workflow to delete a node: (code is here https://github.com/digitalutsc/triplestore_indexer/blob/8.x-1.x/src/Plugin/AdvancedQueue/JobType/TriplestoreIndexJob.php#L49-L62)
  • Make the rest request to /node/...?_format=jsonld
  • Get the serialization and then send it to the Blazegraph to delete the record there
  • When that's done, the delete node in Drupal action is started.
• Because the node is in private mode the rest endpoint of node/...?format=jsonld has 401 error. That cause the white screen

Goal

• Find and handle where is the crash error
• Resolve the issue by finding a way to handle the 401 error of the rest endpoint node/...?format=jsonld if the node is in access control. ==> maybe use JWT token to get authenticated to the jsonld endpoint. (ie. https://github.com/digitalutsc/islandora_mirador/blob/drupal_mirador/islandora_mirador.module#L34)

[HyphenHook]

Encountered

Error: Call to a member function getGroupType() on null in Drupal\search_api\Plugin\views\filter\SearchApiLanguage->query() (line 33 of /var/www/drupal/web/modules/contrib/search_api/src/Plugin/views/filter/SearchApiLanguage.php). On deleting group indexed item.

Edit: This was an error encountered due to a module I installed and nothing to do with search_api

[HyphenHook]

Workaround

In Configuration > System > Triplestore Indexer there is an option to enable Basic Authentication under Drupal Authentication. It requires an administrator account to allow for endpoint access thus avoiding the 401 error.
Will look into incorporating JWT tokens instead of Basic Auth for security.