Hi there, My application at twitdiff.appspot.com is getting finding that random user accounts' OAuth tokens are no longer valid. I assumed that they were revoking the application's access at Twitter.com, so I modified the exception handler to send a mail telling them "looks like you revoked me - if you want to continue service, just log back in at any time".
Well, now I've got an e-mail back from one of these users saying she changed nothing. What's up with that? Can OAuth tokens just randomly disappear? My service relies on them being valid for at least 12 hours, for use from a background task. David.
