Divi Purge Cache with nginx-helper plugin

divi-nginx-helper-cache.php

 <?php

/*
Plugin Name: Divi Plugin for Nginx Helper
Description: This is a GP helper plugin created for our customers.
Author: GridPane
Network: true

There is another function that you can use and assign it to the save page hook:
et_core_page_resource_auto_clear()


*/

if (!function_exists('untrailingslashit') || !defined('WP_PLUGIN_DIR')) {
    // WordPress is probably not bootstrapped.
    exit;
}

function clear_nginx_cache_for_divi($post_id) {
 if ( class_exists( '\Nginx_Helper' ) ) {
  global $nginx_purger;
  $nginx_purger->purge_all();
 }
}
// Found the necessary action using grep
add_action('et_save_post', 'clear_nginx_cache_for_divi');
?>