Merge pull request #17 from xendit/cc-refunds

update refunds method client

README.md

@@ -111,6 +111,18 @@ curl --include \
 4. localhost:8006/paid_invoice_from_xendit (callback url) get the paid invoice data.
 ```
 
+# Issue credit card refund without idempotency key
+```
+cd src/
+php examples/issue_credit_card_refund_example.php [credit_card_charge_id] [amount] [external_id]
+```
+
+# Issue credit card refund with idempotency key
+```
+cd src/
+php examples/issue_credit_card_refund_with_idempotency_example.php [credit_card_charge_id] [amount] [external_id] [optional-idempotency-key]
+```
+
 # Subscribe Credit Card Recurring Payment
 ```
 cd src/

src/XenditPHPClient.php

@@ -227,15 +227,20 @@ function captureCreditCardPayment ($external_id, $token_id, $amount) {
             return $responseObject;
         }
 
-        function issueCreditCardRefund ($credit_card_charge_id, $amount) {
+        function issueCreditCardRefund ($credit_card_charge_id, $amount, $external_id, $options = null) {
             $curl = curl_init();
 
             $headers = array();
             $headers[] = 'Content-Type: application/json';
 
+            if (!empty($options['X-IDEMPOTENCY-KEY'])) {
+                array_push($headers, 'X-IDEMPOTENCY-KEY: '.$options['X-IDEMPOTENCY-KEY']);
+            }
+
             $end_point = $this->server_domain.'/credit_card_charges/'.$credit_card_charge_id.'/refunds';
 
             $data['amount'] = $amount;
+            $data['external_id'] = $external_id;
 
             $payload = json_encode($data);
 

src/examples/issue_credit_card_refund.php → src/examples/issue_credit_card_refund_example.php

@@ -8,8 +8,9 @@
 
     $credit_card_charge_id = $argv[1];
     $amount = $argv[2];
+    $external_id = $argv[3];
 
-    $response = $xenditPHPClient->issueCreditCardRefund($credit_card_charge_id, $amount);
+    $response = $xenditPHPClient->issueCreditCardRefund($credit_card_charge_id, $amount, $external_id);
 
     print_r($response);
 ?>

src/examples/issue_credit_card_refund_with_idempotency_example.php

@@ -0,0 +1,17 @@
+<?php
+    require('config/xendit_php_client_config.php');
+    require('XenditPHPClient.php');
+
+    $options['secret_api_key'] = constant('SECRET_API_KEY');
+
+    $xenditPHPClient = new XenditClient\XenditPHPClient($options);
+
+    $credit_card_charge_id = $argv[1];
+    $amount = $argv[2];
+    $external_id = $argv[3];
+    $options['X-IDEMPOTENCY-KEY'] = $argv[4];
+
+    $response = $xenditPHPClient->issueCreditCardRefund($credit_card_charge_id, $amount, $external_id, $options);
+
+    print_r($response);
+?>