Hi there, i was dealing with the similar problem - i made single sitemap with this module, there was little bit less than 50k links, so when provided that sitemap to google search console, they failed to fetch it.

My solution was to build sitemap index and put all the sub sitemaps in to it - i took all links from my old sitemap and divided them in categories. All this was done with sitemap.js in node.js using express router to send back response as generated sitemap.xml index file.

@AndyCosow did you have example code for that available?

@PTiCA1 the "sitemap index" feature is WIP (see #6), but without limit size for now 😕

After a quick review, it seems that we can't use the createSitemapIndex function from sitemap.js you're quoting, because the sitemap-module dynamically returns the sitemaps and won't be able to write to a folder as the feature proposes.

When the new version of the sitemap module with sitemapindex will be published (and stable ^^). We can start developing your feature. It will be an useful enhance 👍

@roryheaney yes, here it is - On CodePile

I also recommend you to look in to sitemap.js documentation everything is pretty clear out there :)

@PTiCA1 This feature exists in v2.0.0
@NicoPennec can closed?

@ricardogobbosouza nope! the v2.0.0 add only a manual splitting. The auto splitting is planned for the next release (see milestone). I started working on it (but not published yet)