first upload all files

Modules/Cart/Providers/CartServiceProvider.php

@@ -0,0 +1,29 @@
+<?php
+
+namespace Modules\Cart\Providers;
+
+use Modules\Cart\Cart;
+use Illuminate\Support\ServiceProvider;
+
+class CartServiceProvider extends ServiceProvider
+{
+    /**
+     * Register the service provider.
+     *
+     * @return void
+     */
+    public function register()
+    {
+        $this->app->singleton(Cart::class, function ($app) {
+            return new Cart(
+                $app['session'],
+                $app['events'],
+                'cart',
+                session()->getId(),
+                config('fleetcart.modules.cart.config')
+            );
+        });
+
+        $this->app->alias(Cart::class, 'cart');
+    }
+}