Debugging Google Java SDK API Calls

Question

I am building a simple Java app that talks to the Google Directory API to add and remove users from groups in my Google Workspace. I have build the client like this:

InputStream inputStream = NewsletterSubscriber.class.getResourceAsStream("/credentials.json");

if (inputStream == null) {
  throw new FileNotFoundException(
    "The credentials file could not be found"
  );
}

GoogleCredentials googleCredentials = GoogleCredentials
  .fromStream(inputStream)
  .createScoped(DirectoryScopes.ADMIN_DIRECTORY_GROUP_MEMBER);

HttpCredentialsAdapter httpRequestInitializer = new HttpCredentialsAdapter(googleCredentials);

DIRECTORY = new Directory.Builder(
  new NetHttpTransport(),
  GsonFactory.getDefaultInstance(),
  httpRequestInitializer
)
  .setApplicationName("Whatever")
  .build();

Member member = new Member()
  .setEmail("someone@whatever.com")
  .setRole("MEMBER");

Directory.Members.Insert insert = DIRECTORY.members().insert(
  "newsletter@whatever.com",
  member
);

int statusCode = insert.getLastStatusCode();
String statusMessage = insert.getLastStatusMessage();

When I run this code, statusCode is always -1 and statusMessage is always null. The Google Developer Console shows no activity on the service account being used.

So in short, I have no idea what's happening.

How can I debug what the Google client is doing? I can't seem to find any kind of logging/debugging/tracing options in the Google Java SDK. I'm sure I'm missing something simple, but I can't for the life of me figure out what.

Debugging Google Java SDK API Calls

0 Answers