Custom way of session rolling

[jakub-msqt]

My goal is to extend the session expiration when 2/3 of its duration has passed instead of doing this on every request.

For that, I've kept the rolling option disabled and I've written a custom middleware as follows:

export const sessionTouchMiddleware = (req: Request, _res: Response, next: NextFunction) => {
  if (!req.session.userId || !req.session.cookie) {
    return next()
  }

  const { originalMaxAge, expires } = req.session.cookie

  if (!originalMaxAge || !expires) {
    return next()
  }

  const sessionStart = expires.getTime() - originalMaxAge
  const elapsedMs = Date.now() - sessionStart

  // Touch the session if two-thirds of its lifespan elapsed
  if (elapsedMs >= originalMaxAge * (2 / 3)) {
    req.session.cookie.maxAge = originalMaxAge
    req.session.touch()
  }

  next()
}

The above has no effect. I'm using connect-pg-simple store. Any help is appreciated.