Paypal API不发布项目数组

Question

我已经建立了一个Paypal API，该API可以从我已建立的购物车中获取价格和商品详细信息，然后将价格发送给Paypal以向客户收费。但是，尽管项目的所有详细信息的确显示在响应标头中，但它们从未发送到Paypal。

以下是负责获取详细信息的代码：

<script>
    paypal.Buttons({
     createOrder: function(data, actions) {
       // Set up the transaction
       return actions.order.create({
         purchase_units: [{
           amount: {
             value: {{ $totalPrice }},
             currency: 'GBP',
             item_list:{
               items: [
                  @foreach($products as $product)
                  {
                    name: "{{ $product['item']['title'] }}",
                    sku: {{ $product['id'] }},
                    quantity: 1,
                    unit_amount: {
                      currency_code: "GBP",
                      value: {{ $product['price'] }}
                    }
                  },
                  @endforeach
              ],
             }
           },
         },
       ]
       });
     },
     onApprove: function(data, actions) {
      // Capture the funds from the transaction
      return actions.order.capture().then(function(details) {
        // Show a success message to your buyer
        alert('Transaction completed by ' + details.payer.name.given_name);
        console.log(data.orderID);
        return fetch('{{ route('PaypalServerController.getOrder')}}', {
          method: 'post',
          _token: '{{csrf_token()}}',
          headers: {
            'content-type': 'application/json'
          },
          body: JSON.stringify({
            orderID: data.orderID
          })
        }).then(function(){
          alert('SUCCESS!');
        }, function(){
          alert('IT FAILED');
        });
      });
    }
   }).render('#paypal-button-container');
  </script>

这是控制器

  public function authenticate(request $request){
    return 'authenticate test';
  }
  public static function getOrder(request $request)
  {
    $orderId = json_decode($request->getContent())->orderID;
    // 3. Call PayPal to get the transaction details

    $client = PayPalClient::client();
    $response = $client->execute(new OrdersGetRequest($orderId));
    /**
     *Enable the following line to print complete response as JSON.
     */
    //print json_encode($response->result);
    print "Status Code: {$response->statusCode}\n";
    print "Status: {$response->result->status}\n";
    print "Order ID: {$response->result->id}\n";
    print "Intent: {$response->result->intent}\n";
    print "Links:\n";
    foreach($response->result->links as $link)
    {
      print "\t{$link->rel}: {$link->href}\tCall Type: {$link->method}\n";
    }
    // 4. Save the transaction in your database. Implement logic to save transaction to your database for future reference.
    print "Gross Amount: {$response->result->purchase_units[0]->amount->currency_code} {$response->result->purchase_units[0]->amount->value}\n";

    // To print the whole response body, uncomment the following line
    // echo json_encode($response->result, JSON_PRETTY_PRINT);
  }
}

/**
 *This driver function invokes the getOrder function to retrieve
 *sample order details.
 *
 *To get the correct order ID, this sample uses createOrder to create a new order
 *and then uses the newly-created order ID with GetOrder.
 */
if (!count(debug_backtrace()))
{
  PaypalServerController::getOrder('REPLACE-WITH-ORDER-ID', true);
}

我希望发生的事情是，当客户登录到弹出的Paypal窗口时，在那里显示了项目详细信息。同样在供应商的“贝宝”帐户屏幕上，项目也显示在此处。这可能吗？