bumped guzzle to 6.0

Author: glena

composer.json

@@ -11,7 +11,7 @@
   ],
   "require": {
     "php": ">=5.4.0",
-    "guzzlehttp/guzzle": "~5.0",
+    "guzzlehttp/guzzle": "~6.1",
     "ext-json": "*",
     "adoy/oauth2": "~1.3",
     "firebase/php-jwt" : "~2.2"

src/API/RequestBuilder.php

@@ -89,13 +89,14 @@ public function call() {
         $method = $this->method;
 
         try {
-
-            $response = $client->$method($this->getUrl(), array(
+            
+            $response = $client->request($this->method, $this->getUrl(), [
                 'headers' => $this->headers,
-                'body' => $this->body
-            ));
+                'body' => $this->body,
+            ]);
+            $body = (string) $response->getBody();
 
-            return $response->json(array('object' => false));
+            return $this->jsonDecode($body, true);
 
         } catch (RequestException $e) {
             throw $e;