/**
* @param $username
* @param $password
* @return string
*/
public function getAuthToken($username, $password)
{
$this->options['getAuthToken'] = ['name' => $username, 'password' => $password];
$this->client->post($this->getServerUrl() . '/_session', 200, $this->getOptions());
$headers = $this->client->getLastHeaders();
$cookie = $headers['Set-Cookie'][0];
list($tokenPart) = explode(';', $cookie);
$tokenPart = explode('=', $tokenPart);
return $tokenPart[1];
}
