fix make payment link

Author: Morten Bak

README.md

@@ -129,6 +129,17 @@ $createdPayment = \Netbums\Quickpay\Quickpay::api()->payments()->create(
 ```
 After a payment is created you can create a payment link for it, and redirect the user to the payment link.
 
+#### Create a payment link
+```php
+$paymentLinkData = new \Netbums\Quickpay\DataObjects\PaymentLink(
+    id: 437296737, 
+    amount: 100
+);
+
+$paymentLink = \Netbums\Quickpay\Quickpay::api()->payments()->createLink($paymentLinkData);
+```
+This will return a URL, that you can redirect the user to.
+
 #### Update a payment
 ```php
 ```

src/DataObjects/PaymentLink.php

@@ -7,10 +7,10 @@
     public function __construct(
         public int $id, // transaction id
         public int $amount, // Amount to authorize
-        public ?string $language,
-        public ?string $continue_url,
-        public ?string $cancel_url,
-        public ?string $callback_url,
+        public ?string $language = null,
+        public ?string $continue_url = null,
+        public ?string $cancel_url = null,
+        public ?string $callback_url = null,
     ) {
     }
 
@@ -19,10 +19,10 @@ public static function fromArray(array $data): static
         return new static(
             id: $data['id'],
             amount: $data['amount'],
-            language: $data['language'],
-            continue_url: $data['continue_url'],
-            cancel_url: $data['cancel_url'],
-            callback_url: $data['callback_url'],
+            language: $data['language'] ?? null,
+            continue_url: $data['continue_url'] ?? null,
+            cancel_url: $data['cancel_url'] ?? null,
+            callback_url: $data['callback_url'] ?? null,
         );
     }
 

src/Resources/PaymentResource.php

@@ -70,8 +70,9 @@ public function create(Payment $payment): array
      *
      * @throws CreatePaymentLinkFailed
      */
-    public function createLink(int $id, PaymentLink $paymentLink): array
+    public function createLink(PaymentLink $paymentLink): array
     {
+        $id = $paymentLink->id;
         $this->method = 'put';
         $this->endpoint = 'payments/'.$id.'/link';
         $this->data = $paymentLink->toArray();