old-experiments/backend/wordpress/wp-content/plugins/user-organizations/user-organizations.php

<?php

/**
 * Plugin Name: User Organizations
 * Plugin URI:  https://wordpress.org/plugins/wp-user-groups/
 * Author:      Saburly
 * Description: Hierarchical organization managment
 */

// Exit if accessed directly
defined( 'ABSPATH' ) || exit;

function load() {
    if (class_exists('WP_User_Taxonomy')) {
        require_once ('includes/class_user_organization_taxonomy.php');
        require_once ('includes/class-user-organizations-directory.php');
        require_once('includes/class-order-managment.php');

        do_action('user_organizations_loaded');
    }
}

function remove_default_user_groups() {
    remove_action( 'init', 'wp_register_default_user_group_taxonomy' );
    remove_action( 'init', 'wp_register_default_user_type_taxonomy'  );
}

function fetch_user_organization() {
    return User_Organizations_Directory::get_user_organization();
}

add_action('init', 'load');

add_action('plugins_loaded', 'remove_default_user_groups', 30);

add_action('user_organizations_loaded', function() {
    register_rest_route('wiaas/v1', '/organization', array(
        'methods' => 'GET',
        'permission_callback' =>  'check_permission',
        'callback' => 'fetch_user_organization',
    ));
});