Import Prestashop api into laravel

I'm trying to import Prestashop webservice in a Laravel 5 project to use it in a command.

This is the file path:

app/ecommerce/prestashop/PSWebServiceLibrary.php

And this is the structure of the file:

    <?php


    namespace app/ecommerce/prestashop/;

    use \Exception;



  class PrestaShopWebservice
    {
    }

class PrestaShopWebserviceException extends Exception { }

But when I try to import this file to a controller like this:

use \App\ecommerce\prestashop\PSWebServiceLibrary;

$webService = new PrestaShopWebservice($store_path, $auth_key, false);

I get this error:

[Symfony\Component\Debug\Exception\FatalErrorException]                                       
  Class 'App\EcommercePlatforms\Prestashop\PSWebServiceLibrary\PrestaShopWebservice' not found 

via Chebli Mohamed