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JavaScript

Posted by lihaoquan
lihaoquan
12,045 Points

NodeJs Mozilla Middleware - client-sessions - activeDuration field

I've started using client-sessions, a middleware for session management for nodeJs by Mozilla.

Below is the code to setup a session :

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

I know that duration field sets the duration before the cookie expires. However, I'm not sure how activeDuration works. I know it lengthens a user's cookie expiration time by 5 minutes if the user is active, but does it stack? e.g ( duration left: 29 minutes, user request a page, lengthens session by 5 minutes, total minutes left: 34 minutes, user request another page, lengthens session by 5 minutes, total minutes left: 39 minutes ) or does it add 5 minutes only when duration falls below 30 minutes?

1 Answer

Colin Bell
Colin Bell
29,679 Points

From github page I think you're referring to:

// if expiresIn < activeDuration, the session will be extended by activeDuration milliseconds

Ā 

Looks like it extends it by activeDuration's value, but only if it time left to expiration is less than activeDuration's value.

So if activeDuration is set to 5 minutes, if the cookie's timer reaches 4:59 it will bump up to 9:59 and won't be bumped up again until it reaches 4:59 again.

lihaoquan
lihaoquan
12,045 Points

Thanks, I'll learn to read the documentations haha.