Added UUID display formatter

edit_uuid.module

@@ -10,6 +10,8 @@ use Drupal\Core\Form\FormStateInterface;
 use Drupal\Core\Entity\EntityForm;
 use Drupal\Component\Uuid\Uuid;
 use Drupal\Component\Uuid\Php;
+use Drupal\Core\Entity\EntityTypeInterface;
+use Drupal\Core\Field\BaseFieldDefinition;
 
 /**
  * Implements hook_help().
@@ -92,3 +94,13 @@ function edit_uuid_form_validate(array $form, FormStateInterface $form_state) {
     }
   }
 }
+
+/**
+ * Implements hook_entity_base_field_info_alter().
+ */
+function edit_uuid_entity_base_field_info_alter(&$fields, EntityTypeInterface $entity_type) {
+  if (($field_name = $entity_type->getKey('uuid')) && $field = $fields[$field_name]) {
+    assert($field instanceof BaseFieldDefinition);
+    $field->setDisplayConfigurable('view', TRUE);
+  }
+}

src/Plugin/Field/FieldFormatter/EditUuidFieldFormatter.php

+<?php
+
+namespace Drupal\edit_uuid\Plugin\Field\FieldFormatter;
+
+use Drupal\Core\Field\FieldItemListInterface;
+use Drupal\Core\Field\FormatterBase;
+
+/**
+ * Plugin implementation of the 'uuid' formatter.
+ *
+ * @FieldFormatter(
+ *   id = "uuid",
+ *   label = @Translation("UUID"),
+ *   field_types = {
+ *     "uuid",
+ *   },
+ * )
+ */
+class EditUuidFieldFormatter extends FormatterBase {
+
+  
+  /**
+   * {@inheritdoc}
+   */
+  public function viewElements(FieldItemListInterface $items, $langcode) {
+    $elements = [];
+     $user = \Drupal::currentUser();
+    if($user->hasPermission('show edit_uuid')) {
+      foreach ($items as $delta => $item) {
+        $elements[$delta] = [
+          '#markup' => $item->value,
+        ];
+      }
+    }
+    return $elements;
+  }
+
+}