create-pay-pal-order route fails when using promotion code

[LaskeJu]

When I perform a payment, while i using an discount code. The create-pay-pal-order route fails and i cant pay my order.

[LaskeJu]

I have added the following code to fix the error:
File: "Api/CreateOrderApi.php" => "public function create(string $token, PaymentInterface $payment, string $referenceId): array"

                        'tax_total' => [
                            'currency_code' => $order->getCurrencyCode(),
                            'value' => $payPalItemData['total_tax'],
                        ],

                        //added this:
                        'discount' => [
                            'currency_code' => $order->getCurrencyCode(),
                            'value' => abs($order->getOrderPromotionTotal()) / 100,
                        ]

This is how it works for me.

[romainguerrero]

@LaskeJu we have the problem too. Are you able to propose your fix in a PR as it can be shared to everyone ?

[LaskeJu]

@romainguerrero added PR #175

[Zales0123]

I believe it can be closed due to #175 🖖