The "requestId" could be generated before "checkAuth" is called

The `checkAuth` function is called right at the beginning when Cube starts to handle a request. Because of that, I use it to print the first log message about the incoming request.

But the 'requestId' is not set in the `request` object that is given to `checkAuth`. So it is difficult to link the first log message with the subsequent log messages that already contain a requestId.

Couldn't the 'requestId' be set on the request before `checkAuth` is invoked?