suggestion fix for issue #45

src/Pinterest/Exceptions/CurlException.php

@@ -0,0 +1,15 @@
+<?php
+/**
+ * Copyright 2015 Dirk Groenen
+ *
+ * (c) Dirk Groenen <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace DirkGroenen\Pinterest\Exceptions;
+
+class CurlException extends \Exception {
+
+}

src/Pinterest/Transport/Request.php

@@ -12,6 +12,7 @@
 
 use DirkGroenen\Pinterest\Utils\CurlBuilder;
 use DirkGroenen\Pinterest\Exceptions\PinterestException;
+use DirkGroenen\Pinterest\Exceptions\CurlException;
 
 class Request {
 
@@ -211,8 +212,10 @@ public function execute($method, $apiCall, array $parameters = array(), $headers
         // Execute request and catch response
         $response_data = $ch->execute();
 
-        // Check if we have a valid response
-        if (!$response_data || $ch->hasErrors()) {
+        if ($response_data === false && !$ch->hasErrors()) {
+            throw new CurlException("Error: Curl request failed")
+        }
+        else if($ch->hasErrors()) {
             throw new PinterestException('Error: execute() - cURL error: ' . $ch->getErrors(), $ch->getErrorNumber());
         }