private function createResumeUri()
{
$headers = ['X-Upload-Content-Type' => $this->contentType, 'X-Upload-Content-Length' => $this->data->getSize(), 'Content-Type' => 'application/json'];
$request = new Request('POST', $this->uri, $headers, json_encode($this->metadata));
$response = $this->requestWrapper->send($request, $this->requestOptions);
$this->resumeUri = $response->getHeaderLine('Location');
return $this->resumeUri;
}