wordpress rest api v2 how to list taxonomy terms?

Question

i am new to v2, i use v1 for long time, currently upgrade to v2, i try to get all the terms belong to specific custom taxonomy.

In v1 i can do this to get terms /taxonom

Answer 1

The accepted answer mostly worked for me. This is what I got

 'GET',
            'callback' => array($this, 'get_all_terms'),
        )); 
    }   
    public function get_all_terms($object)
    {   
        $args = array(
            'public' => true,
            '_builtin' => false
        );  
        $output = 'names'; // or objects
        $operator = 'and'; // 'and' or 'or' 
        $taxonomies = get_taxonomies($args, $output, $operator);
        foreach ($taxonomies as $key => $taxonomy_name) {
            if ($taxonomy_name = $_GET['term']) {
                $return[] = get_terms(array(
                    'taxonomy' => $taxonomy_name,
                    'hide_empty' => false,
                )); 
            }   
        }   
        return new WP_REST_Response($return, 200);
    }   
}
add_action( 'rest_api_init', get_all_terms);
?>

matches the docs more closely https://developer.wordpress.org/reference/functions/get_terms/