Next.js 15 requires params in Route Handlers to be awaited

[AmruthPillai]

I'm using the latest @zenstackhq/server/next package, which exports the NextRequestHandler.

I get this error while running the server:

Error:  In route /api/model/[...path] a param property was accessed directly with `params.path`. `params` should be awaited before accessing its properties. Learn more: https://nextjs.org/docs/messages/sync-dynamic-apis`.

Probably NextRequestHandler should be updated to await the params props before being accessed. AFAIK, I couldn't find a way to await it myself.

[ymc9]

Thanks for bringing this up @AmruthPillai ! We should fix it soon. Would you be interested in making a PR for it? I'll be happy to facilitate.

[AmruthPillai]

@ymc9 I have raised PR for the same, followed the contribution guide to match the right branch to fork from (dev). Hope it looks alright.

[ymc9]

Hi @AmruthPillai , thanks for making the PR!

I'm testing Next15 and I found the compiler complains about the typing of the API route handler:

Type error: Route "src/app/api/model/[...path]/route.ts" has an invalid "GET" export:
  Type "Context" is not a valid type for the function's second argument.
    Expected "Promise<any>", got "Promise<{ path: string[]; }> | { path: string[]; }".

Have you noticed the same thing in your environment? I don't know why Next wants us to use a weak typing ...

[ymc9]

Oh, I think it requires the type of the second parameter to be entirely a promise now. I'll make a change.

[ymc9]

Fixed in 2.7.4

[AmruthPillai]

@ymc9 Thank you for taking over. I was just wondering what would be the compatibility for users using Zenstack pre-Next.js 15, but as long as it works, that's perfect. Looking forward to seeing this in the release!