Refactor the refund codes

README.md

@@ -182,13 +182,13 @@ In the redrected page (method) add this below code to verify you payment.
 ### Refund a transaction
 
 Whenever your customer pay you, it is advisable to store the transaction information return by flutterwave.
-To create a refund we needed the amount paid and flutterwave references (flw_ref).
+To create a refund we needed the amount paid and transaction id (transaction_id).
 
 ```php
-  $flutterwaveRef = "FLW-MOCK-a728cc7f95ecff4bc92388a2f1f69cc3";
+  $transactionId = "4717164";
   $amount = 500;
 
-  Transaction::refund($flutterwaveRef, $amount);
+  Transaction::refund($transactionId, $amount);
 ```
 
 <a id="contribution-guidelines"></a>

src/Flutterwave/Transaction.php

@@ -23,12 +23,12 @@ class Transaction
 	/**
 	 * @throws \Exception
 	 */
-	public static function refund(string $references, int $amount)
+	public static function refund(string $transactionId, int $amount)
     {
         $flutterwave = new Flutterwave();
         $client      = Services::curlrequest();
 
-        $request = $client->request('POST', "{$flutterwave->baseUrl}/charges/{$references}/refund", [
+        $request = $client->request('POST', "{$flutterwave->baseUrl}/transactions/{$transactionId}/refund", [
             'headers' => [
                 'Authorization' => 'Bearer ' . env('FLUTTERWAVE_SECRET_KEY'),
             ],
@@ -41,7 +41,7 @@ public static function refund(string $references, int $amount)
         $response = json_decode($request->getBody());
 
         if ($request->getStatusCode() !== 200) {
-            throw new Exception($response->message);
+            throw new Exception($response->data);
         }
 
         return $response;