How to add open graph meta tags programmatically in drupal 8 & 9
Code snippet that can be used to add open graph meta tags programmatically in drupal 8 & 9.
function THEMENAME_page_attachments_alter(array &$page)
{
$route = \Drupal::routeMatch()->getRouteObject();
if ($route) {
$view_id = $route->getDefault('view_id');
if (!empty($view_id)) {
if ($view_id == 'devoirs') {
$img_url = "path/to/image";
$og_image = array(
'#tag' => 'meta',
'#attributes' => array(
'property' => 'og:image',
'content' => $img_url,
),
);
$page['#attached']['html_head'][] = [$og_image, 'og_image'];
$og_description = array(
'#tag' => 'meta',
'#attributes' => array(
"property" => "og:description",
"content" => t("Lorem ipsum"),
),
);
$page['#attached']['html_head'][] = [$og_description, 'og:description'];
}
}
}
}
