how to create sitemap with getStaticProps

[christianMiguez]

Hi guys, I noticed that the sitemap needs getServerSideProps to recreate a sitemap. I can't use it because the current business requires an export version of the project.

So I tried the default method to recreate a new one, but the lastMod field always shows the current date.

How can I set the lastMod with a previously fetched data from an api? Ideally I have all the pages lastMod from getStaticProps, but I don't know how can I use it