/**
* @inheritdoc
*/
public function refreshToken()
{
if (!$this->client->getToken()) {
throw new \Exception('Token is not set');
}
$response = $this->httpClient->post(AuthorizationModel::ENDPOINT_BASE . AuthorizationModel::ENDPOINT_TOKEN, ['refresh_token' => $this->client->getToken()->getRefreshToken(), 'client_id' => $this->client->getClientId(), 'client_secret' => $this->client->getClientSecret(), 'grant_type' => AuthorizationModel::GRANT_REFRESH]);
return $this->tokenMapper->buildToken($response->getBody());
}
/**
* Prepare Authentication headers required by Imgur and/or Mashape
*
* @return array
*/
protected function prepareAuthenticationHeaders()
{
$headers = [];
$headers['Authorization'] = 'Client-ID ' . $this->client->getClientId();
if ($this->client->getToken() && $this->client->getToken()->getAccessToken()) {
$headers['Authorization'] = 'Bearer ' . $this->client->getToken()->getAccessToken();
}
if ($this->client->getMashapeKey()) {
$headers['X-Mashape-Key'] = $this->client->getMashapeKey();
}
return $headers;
}
