Adding resetRequestId in ApiContext to enable multiple create calls in succession

lib/PayPal/Rest/ApiContext.php

@@ -32,6 +32,19 @@ class ApiContext
      */
     private $credential;
 
+
+    /**
+     * Construct
+     *
+     * @param \PayPal\Auth\OAuthTokenCredential $credential
+     * @param string|null                       $requestId
+     */
+    public function __construct($credential = null, $requestId = null)
+    {
+        $this->requestId = $requestId;
+        $this->credential = $credential;
+    }
+
     /**
      * Get Credential
      *
@@ -60,15 +73,16 @@ class ApiContext
     }
 
     /**
-     * Construct
+     * Resets the requestId that can be used to set the PayPal-request-id
+     * header used for idempotency. In cases where you need to make multiple create calls
+     * using the same ApiContext object, you need to reset request Id.
      *
-     * @param \PayPal\Auth\OAuthTokenCredential $credential
+     * @return string
-     * @param string|null                       $requestId
      */
-    public function __construct($credential = null, $requestId = null)
+    public function resetRequestId()
     {
-        $this->requestId = $requestId;
+        $this->requestId = $this->generateRequestId();
-        $this->credential = $credential;
+        return $this->getrequestId();
     }
 
     /**

tests/PayPal/Test/Rest/ApiContextTest.php

@@ -0,0 +1,37 @@
+<?php
+
+use PayPal\Rest\ApiContext;
+
+/**
+ * Test class for PPAPIService.
+ *
+ */
+class ApiContextTest extends PHPUnit_Framework_TestCase
+{
+
+    /**
+     * @var ApiContext
+     */
+    public $apiContext;
+
+    public function setUp()
+    {
+        $this->apiContext = new ApiContext();
+    }
+
+    public function testGetRequestId()
+    {
+        $requestId = $this->apiContext->getrequestId();
+        $this->assertNotNull($requestId);
+        $this->assertEquals($requestId, $this->apiContext->getrequestId());
+    }
+
+    public function testResetRequestId()
+    {
+        $requestId = $this->apiContext->getrequestId();
+        $newRequestId = $this->apiContext->resetRequestId();
+        $this->assertNotNull($newRequestId);
+        $this->assertNotEquals($newRequestId, $requestId);
+    }
+
+}