guard_non_array_values.patch

diff --git a/modules/entity_share_client/src/Service/JsonapiHelper.php b/modules/entity_share_client/src/Service/JsonapiHelper.php
index a7a2c64..bfebc22 100644
--- a/modules/entity_share_client/src/Service/JsonapiHelper.php
+++ b/modules/entity_share_client/src/Service/JsonapiHelper.php
@@ -238,31 +238,40 @@ class JsonapiHelper implements JsonapiHelperInterface {
             $referenced_entities_json = Json::decode($referenced_entities_response);
 
             if (!isset($referenced_entities_json['errors'])) {
-              $referenced_entities_ids = $this->importEntityListData($referenced_entities_json['data']);
-
-              $main_property = $field->getItemDefinition()->getMainPropertyName();
-
-              // Add field metadatas.
-              foreach ($this->prepareData($field_data['data']) as $key => $field_value_data) {
-                // When dealing with taxonomy term entities which has a
-                // hierarchy, there is a virtual entity for the root. So
-                // $referenced_entities_ids[$key] may not exist.
-                // See https://www.drupal.org/node/2976856.
-                if (isset($referenced_entities_ids[$key])) {
-                  $field_value = [
-                    $main_property => $referenced_entities_ids[$key],
-                  ];
-
-                  if (isset($field_value_data['meta'])) {
-                    $field_value += $field_value_data['meta'];
+              if (is_array($referenced_entities_json['data'])) {
+                $referenced_entities_ids = $this->importEntityListData($referenced_entities_json['data']);
+
+                $main_property = $field->getItemDefinition()
+                  ->getMainPropertyName();
+
+                // Add field metadatas.
+                foreach ($this->prepareData($field_data['data']) as $key => $field_value_data) {
+                  // When dealing with taxonomy term entities which has a
+                  // hierarchy, there is a virtual entity for the root. So
+                  // $referenced_entities_ids[$key] may not exist.
+                  // See https://www.drupal.org/node/2976856.
+                  if (isset($referenced_entities_ids[$key])) {
+                    $field_value = [
+                      $main_property => $referenced_entities_ids[$key],
+                    ];
+
+                    if (isset($field_value_data['meta'])) {
+                      $field_value += $field_value_data['meta'];
+                    }
+
+                    // Allow to alter the field value with an event.
+                    $event = new RelationshipFieldValueEvent($field, $field_value);
+                    $this->eventDispatcher->dispatch(RelationshipFieldValueEvent::EVENT_NAME, $event);
+                    $field_values[] = $event->getFieldValue();
                   }
-
-                  // Allow to alter the field value with an event.
-                  $event = new RelationshipFieldValueEvent($field, $field_value);
-                  $this->eventDispatcher->dispatch(RelationshipFieldValueEvent::EVENT_NAME, $event);
-                  $field_values[] = $event->getFieldValue();
                 }
               }
+              else {
+                $context = [
+                  'entity' => json_encode($entity->toArray(), JSON_PRETTY_PRINT),
+                ];
+                \Drupal::logger('entity_share_client')->error('Data is not an array', $context);
+              }
             }
           }
           $entity->set($field_name, $field_values);