graphql_core_schema-1.0.x-dev/tests/modules/graphql_core_schema_test/graphql_core_schema_test.module

<?php

use Drupal\Core\Access\AccessResult;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Session\AccountInterface;

/**
 * Implements hook_entity_field_access().
 */
function graphql_core_schema_test_entity_field_access($operation, FieldDefinitionInterface $field_definition, AccountInterface $account, ?FieldItemListInterface $items = NULL) {
  $fieldName = $field_definition->getName();

  if ($fieldName === 'field_restricted') {
    return AccessResult::forbidden()->addCacheTags(['tag_added_from_field_access_check']);
  }
  return AccessResult::neutral();
}

/**
 * Implements hook_ENTITY_TYPE_access().
 */
function graphql_core_schema_test_node_access(EntityInterface $entity, $operation, AccountInterface $account) {
  if ($entity->bundle() === 'restricted') {
    return AccessResult::forbidden()->addCacheTags(['tag_added_from_entity_access_check']);
  }

  return AccessResult::neutral();
}

/**
 * Implements hook_ENTITY_TYPE_access().
 */
function graphql_core_schema_test_taxonomy_term_access(EntityInterface $entity, $operation, AccountInterface $account) {
  if ($entity->bundle() === 'location') {
    return AccessResult::forbidden();
  }

  return AccessResult::neutral();
}