How can I use getInitialProps only during the NextJS site build?

Question

When using NextJS to build a static site, I would like the getInitialProps method to fire only during the build step and not on the client.

In the build ste

Answer 1

I found the workaround with NextJs 9.0.3 (other versions may also work, I didn't test that)

// XXXPage is your page

XXXPage.getInitialProps = async (req) => {
  if (process.browser) {
    return __NEXT_DATA__.props.pageProps;
  }
  // original logic
}