@Override
  public AuthData generateAuthData(
      String callbackBaseUrl, String authCode, String id, AuthData initialAuthData, String extra) {
    // create a simulated token; since this is a demo extension that does not perform an actual
    // import, OAuth is bypassed.
    return new TokenAuthData("123");
  }
Generates authentication data for the offline data demo importer.

<p>Since the demo does not authenticate against a live service, the OAuth url is set set directly
to the callback address.
extensions/auth/portability-auth-offline-demo/src/main/java/org/datatransferproject/auth/offline/OfflineDemoAuthDataGenerator.java