Re-visit Sitemap Feature

[SukkaW]

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

Re-visit #419

Now with nextra 4, we have many methods like getPageMap, generateStaticParamsFor, and importPage, and it does make sense now to have a method that returns a sitemap.

Describe the solution you'd like

Next.js App Router has built-in sitemap support: https://nextjs.org/docs/app/api-reference/file-conventions/metadata/sitemap.

We can implement this in a way that users only need to create an app/sitemap.ts file with content similar to this:

export { getSiteMap as default } from 'nextra/page-map';

// sitemap.(js|ts) expects an default export that returns `Promise<import('next').MetadataRoute.Sitemap>`

[dimaMachina]

I agree with it!

For now I still stay with next-sitemap, but while developing Nextra 4 I experimented with sitemap.ts file with fast-glob and
real last edit timestamp.

[SukkaW]

but while developing Nextra 4 I experimented with sitemap.ts file with fast-glob and
real last edit timestamp.

If nextra is already collecting page information, is it possible to create a sitemap from that data directly?

[dimaMachina]

yes, definitely