--- /dev/null
+/**
+ * Implements hook_entity_bundle_field_info().
+ */
+function {{ machine_name }}_entity_bundle_field_info(\Drupal\Core\Entity\EntityTypeInterface $entity_type, $bundle, array $base_field_definitions) {
+ // Add a property only to nodes of the 'article' bundle.
+ if ($entity_type->id() == 'node' && $bundle == 'article') {
+ $fields = [];
+ $fields['mymodule_text_more'] = BaseFieldDefinition::create('string')
+ ->setLabel(t('More text'))
+ ->setComputed(TRUE)
+ ->setClass('\Drupal\mymodule\EntityComputedMoreText');
+ return $fields;
+ }
+}