Experiences with rootParams

[amannn]

With rootParams being available in the latest canary release of Next.js, I'd be curious how this feature is working for users of next-intl that have already decided to give it a shot!

My impression so far has been positive, these are my findings.

Bugs/missing:

• Client-side navigations within a given segment value will return undefined for the root param value if you have multiple root layouts (ref) Fixed in Next.js 15.2!
• I couldn't get global 404 pages to work (ref)
• rootParams return an empty object in Route Handlers

Nice-to-have:

• Switching between root layouts cause a hard refresh (I think this is working as-designed)

Let me know if rootParams works well for your app!

[sannajammeh]

This API does not work for me currently in 15 latest canary. It simply returns {} for every page its called in

[amannn]

Do you by chance have a layout at app/layout.tsx? If so, that would cause the empty object. You need to make sure that you only have layouts in nested folders like [locale].