getStaticProps

[egoist]

Page component can export function getStaticProps, and we will run it on the server side at build time.

Since it's only used in build time you can't access stuff like req.query, if the route path contains paramater like /post/:slug, you also need to export a function getStaticPaths which returns a set of static paths so we can use it to render the page.

[egoist]

Implemented!