/**
* Helper method to start the flow by redirecting the user to the
* authentication server. The getAccessToken method must be used when the
* server redirects the user back to the redirect uri
*
* @param \PSX\Url $url
* @param string $clientId
* @param string $redirectUri
* @param string $scope
* @param string $state
*/
public static function redirect(Url $url, $clientId, $redirectUri = null, $scope = null, $state = null)
{
$parameters = $url->getParameters();
$parameters['response_type'] = 'code';
$parameters['client_id'] = $clientId;
if (isset($redirectUri)) {
$parameters['redirect_uri'] = $redirectUri;
}
if (isset($scope)) {
$parameters['scope'] = $scope;
}
if (isset($state)) {
$parameters['state'] = $state;
}
throw new StatusCode\TemporaryRedirectException($url->withScheme('https')->withParameters($parameters)->toString());
}