src/Clients/GuzzleClient.php
public function get($url="")
    {
        try {
            $this->guzzleResponse = $this->_client->request('GET', $url);
            $this->_setLinks();
        } catch (RequestException $e) {
            throw new GreenhouseAPIResponseException($e->getMessage(), 0, $e);
        }
        
        /**
         * Just return the response cast as a string.  The rest of the universe need
         * not be aware of Guzzle's details.
         */
        return (string) $this->guzzleResponse->getBody();
    }
public function get($url="")
    {
        try {
            $this->guzzleResponse = $this->_client->request('GET', $url);
            $this->_setLinks();
        } catch (RequestException $e) {
            throw new GreenhouseAPIResponseException($e->getMessage(), 0, $e);
        }
        
        /**
         * Just return the response cast as a string.  The rest of the universe need
         * not be aware of Guzzle's details.
         */
        return (string) $this->guzzleResponse->getBody();
    }
Fetch the URL. As this is guzzle, this can take a relative URL.  See the Guzzle
docs more info.

@params  string  $url        A relative URL off the base URL. A full URL
should work, too
@return  string  The Raw JSON response from Greenhouse
@throws  GreenhouseAPIResponseException  if the get request fails