Additions for Bot API v3.5: add field provider_data

Author: unreal4u

src/Telegram/Methods/SendInvoice.php

@@ -6,11 +6,12 @@
 
 use unreal4u\TelegramAPI\Abstracts\TelegramMethods;
 use unreal4u\TelegramAPI\Telegram\Types\Inline\Keyboard\Markup;
+use unreal4u\TelegramAPI\Telegram\Types\LabeledPrice;
 
 /**
  * Use this method to send invoices. On success, the sent Message is returned.
  *
- * Objects defined as-is May 2017
+ * Objects defined as-is november 2017
  *
  * @see https://core.telegram.org/bots/api#sendinvoice
  */
@@ -66,6 +67,15 @@ class SendInvoice extends TelegramMethods
      */
     public $prices = [];
 
+    /**
+     * Array data about the invoice, which will be shared with the payment provider. A detailed description of
+     * required fields should be provided by the payment provider.
+     *
+     * The conversion to JSON-encoded string will be handled by the class itself.
+     * @var array
+     */
+    public $provider_data;
+
     /**
      * Optional. URL of the product photo for the invoice. Can be a photo of the goods or a marketing image for a
      * service. People like it better when they see what they are paying for
@@ -152,6 +162,10 @@ public function performSpecialConditions(): TelegramMethods
             $this->prices = json_encode($this->prices);
         }
 
+        if (!empty($this->provider_data)) {
+            $this->provider_data = json_encode($this->provider_data);
+        }
+
         return parent::performSpecialConditions();
     }