Keep locale after session was closed

[Natchii59]

Is your feature request related to a problem? Please describe.

When I close and open my site, it resumes my language preferences, instead of keeping the language I had chosen recently.

Describe the solution you'd like

Add the ability to keep the previous language.

Describe alternatives you've considered

The language is stored in a cookie whose age is the current session. You should fix that or store it in localStorage. Or have the possibility of saying which language to use from a user that is retrieved via database or from a token (Auth.js). That would be the best thing to do.

[amannn]

The cookie that next-intl sets doesn't expire after the session finishes.

It seems like Next.js/Vercel has an issue though where sometimes requests are cached too aggressively and therefore on locale change, the middleware doesn't run, which would update the cookie value. I'm wondering if it's worth trying to add a workaround to mitigate this.

Is that the bug you're seeing too?

Or have the possibility of saying which language to use from a user that is retrieved via database or from a token (Auth.js). That would be the best thing to do.

You can already do that if you prefer.

[Natchii59]

@amannn Next-intl cookie expiration date is Session.

To store the language in a user in a database, do you have an example?

[amannn]

Next-intl cookie expiration date is Session.

Oh, you're absolutely right—sorry for the confusion!

I've added #435 to set the max-age to one year. Does this sound right to you?

To store the language in a user in a database, do you have an example?

Currently not, unfortunately. You'd probably read it in the middleware and maybe adjust the request before passing it to the middleware.

[Natchii59]

I've added #435 to set the max-age to one year. Does this sound right to you?

Is it possible to customize this? (Change the max-age as desired) @amannn

[amannn]

Currently not, no. Do you have a need for it? My assumption is that you'd want to keep a manually changed locale around for as long as possible.

[Natchii59]

I think it would be better for developers, depending on their needs