What it is the duration of stored variables in the session using express js?

Question

For example req.session.email = mamam@ymamam.com i want to know for how long this variable will be available?

Answer 1

It depends on what values you have configured while creating that session.

app.use(session({
  cookieName: 'session',
  duration: 30 * 60 * 1000,
  activeDuration: 5 * 60 * 1000,
}));

By Default your session variables will last till your Node get's restarted.