DBOAuthErrorType

The client is not authorized to request an access token using this method.

The resource owner or authorization server denied the request.

The authorization server does not support obtaining an access token using this method.

The requested scope is invalid, unknown, or malformed.

The authorization server encountered an unexpected condition that prevented it from fulfilling the request.

The authorization server is currently unable to handle the request due to a temporary overloading or maintenance of the server.

The request is missing a required parameter, includes an unsupported parameter value (other than grant type), repeats a parameter, includes multiple credentials, utilizes more than one mechanism for authenticating the client, or is otherwise malformed.

Client authentication failed (e.g., unknown client, no client authentication included, or unsupported authentication method).

The provided authorization grant (e.g., authorization code, resource owner credentials) or refresh token is invalid, expired, revoked, does not match the redirection URI used in the authorization request, or was issued to another client.

The authorization grant type is not supported by the authorization server.

The state param received from the authorization server does not match the state param stored by the SDK.

Some other error (outside of the OAuth2 specification)