Install Flmngr file manager server side
After you have installed the Flmngr plugin or module, you need to install a server-side script to add support to your server.
PHP server 
Laravel framework
Tutorial for installing the file manager on a Laravel app or website.
Symfony framework
Implementing a PHP file manager in the Symphony framework.
Composer package
PHP package for any custom frameworks.
Archived script
PHP scripts set in a zip archive for use in a legacy project without Composer support.
Node server 
Express framework
Flmngr Node module for your website or app on the Express framework.
Nest framework
Flmngr Node module for your website or app on the Nest framework.
Custom Node integration
Route requests from your custom framework to the Flmngr library API.