Session expired or invalid

[Guitarbum722]

What is the desired behavior when an OAuth token is expired/invalid?

For example, I created a session, initialized a Resource and then called resource.Query() in a loop on a 5 second delay just to simulate some typical usage by an automated client.

I logged into my Org and removed the client's session.

SFDC returns INVALID_SESSION_ID: Session expired or invalid, obviously. Thus, an error is returned (I assumed via the call to queryResponse().

• Is there anything besides the error string I could inspect if this occurs?
• Am I missing functionality that you've already implemented?
• Is there a benefit to re-auth and/or letting the caller know that they should authenticate and retry?