Added SDK side implementation of event fetching API endpoint

src/API/Transaction/TransactionEvent.php

@@ -0,0 +1,25 @@
+<?php
+
+
+namespace OnPay\API\Transaction;
+
+
+use OnPay\API\Util\Converter;
+
+class TransactionEvent extends TransactionHistory {
+    /**
+     * @internal Shall not be used outside the library
+     * TransactionHistory constructor.
+     * @param array $data
+     */
+    public function __construct(array $data)
+    {
+        $this->transaction = isset($data['transaction']) ? $data['transaction'] : null;
+        parent::__construct($data);
+    }
+
+    /**
+     * @var string
+     */
+    public $transaction;
+}

src/API/Transaction/TransactionEventCollection.php

@@ -0,0 +1,16 @@
+<?php
+
+
+namespace OnPay\API\Transaction;
+
+
+class TransactionEventCollection {
+    /**
+     * @var TransactionEvent[]
+     */
+    public $events;
+    /**
+     * @var string
+     */
+    public $nextCursor;
+}

src/API/TransactionService.php

@@ -6,6 +6,8 @@
 use OnPay\API\Transaction\DetailedTransaction;
 use OnPay\API\Transaction\SimpleTransaction;
 use OnPay\API\Transaction\TransactionCollection;
+use OnPay\API\Transaction\TransactionEvent;
+use OnPay\API\Transaction\TransactionEventCollection;
 use OnPay\API\Util\Pagination;
 use OnPay\OnPayAPI;
 
@@ -130,4 +132,31 @@ public function refundTransaction($transactionNumber, $amount = null) {
 
         return $transaction;
     }
+
+    /**
+     * @param null|string $cursor
+     * @return TransactionEventCollection
+     * @throws Exception\ApiException
+     * @throws Exception\ConnectionException
+     * @throws Exception\TokenException
+     */
+    public function getEvents($cursor = null) {
+        $query = '';
+        if (null !== $cursor) {
+            $query = '?cursor=' . $cursor;
+        }
+
+        $result = $this->api->get('transaction/events/' . $query);
+
+        $events = [];
+        foreach ($result['data'] as $item) {
+            $events[] = new TransactionEvent($item);
+        }
+
+        $collection = new TransactionEventCollection();
+        $collection->nextCursor = $result['meta']['next_cursor'];
+        $collection->events = $events;
+
+        return $collection;
+    }
 }