add route prefix for /cart, fix bug with update product

app/Http/Controllers/CartController.php

@@ -34,6 +34,10 @@ class CartController extends Controller
         $products_qty = json_decode($request->productsQty, true);
         $cart = Session::get('cart');
         $cart->updateQty($products_qty);
+
+        if (!$cart->total_qty) {
+            Session::forget('cart');
+        }
     }
 
     public function removeFromCart(Product $product)

routes/web.php

@@ -29,9 +29,11 @@ Auth::routes();
 
 Route::get('/home', 'HomeController@index')->name('home');
 
+Route::prefix('cart')->group(function() {
+    Route::get('/', 'CartController@index')->name('cart.index');
+    Route::post('/add/{product}', 'CartController@addToCart')->name('cart.addToCart');
+    Route::post('/update', 'CartController@updateQtyInCart')->name('cart.updateQtyInCart');
+    Route::post('/remove/{product}', 'CartController@removeFromCart')->name('cart.removeFromCart');
+    Route::post('/clear', 'CartController@clearCart')->name('cart.clearCart');
+});
 
-Route::get('/cart', 'CartController@index')->name('cart.index');
-Route::post('/cart/add/{product}', 'CartController@addToCart')->name('cart.addToCart');
-Route::post('/cart/update', 'CartController@updateQtyInCart')->name('cart.updateQtyInCart');
-Route::post('/cart/remove/{product}', 'CartController@removeFromCart')->name('cart.removeFromCart');
-Route::post('/cart/clear', 'CartController@clearCart')->name('cart.clearCart');