Rendering

Render an entity

$nid = 1;

$entity_type = 'node';

$view_mode = 'teaser';

$view_builder = \Drupal::entityTypeManager()->getViewBuilder($entity_type);

$storage = \Drupal::entityTypeManager()->getStorage($entity_type);

$node = $storage->load($nid);

$build = $view_builder->view($node, $view_mode);

$output = render($build);

Render a field

$view_builder = \Drupal::entityTypeManager()->getViewBuilder('node');

$storage = \Drupal::entityTypeManager()->getStorage('node');

$nid = 1;

$node = $storage->load($nid);

$view = $view_builder->viewField($node->get('body'), [

'type' => 'string', // string, entity_reference_label

'label' => 'hidden',

'settings' => ['link' => FALSE],

]);

$output = render($view);