All classes that implement Oauth2ClientGrantServiceInterface in OAuth2 Client 8.3
- class \Drupal\oauth2_client\Service\Grant\AuthorizationCodeGrantService
- class \Drupal\oauth2_client\Service\Grant\ClientCredentialsGrantService
- class \Drupal\oauth2_client\Service\Grant\Oauth2ClientGrantServiceBase implements Oauth2ClientGrantServiceInterface
- class \Drupal\oauth2_client\Service\Grant\RefreshTokenGrantService
- class \Drupal\oauth2_client\Service\Grant\ResourceOwnersCredentialsGrantService