Strategies for revalidating pages after site-wide changes in Sanity discussed in Slack thread

// pages/api/revalidate.ts

const revalidateUrls = [
// list of URLs to revalidate, ~45 pages
'/', '/about', '/courses'
// ...
] 

  try {
    // Revalidate the URLs for affected documents
    let revalPromises: Promise<void>[] = [];

    for (const url of revalidateUrls) {
      const urlPath = url.startsWith('/') ? `${url}` : `/${url}`;
      const promise = res.revalidate(urlPath);
      revalPromises.push(promise);
      await promise;
    }

    await Promise.all(revalPromises);
    return res.status(200).json({ revalidated: true });
  } catch (err) {
    // If there was an error, Next.js will continue to show
    // the last successfully generated page
    console.log('Error revalidating: ', err);
    return res.status(500).send('Error revalidating');
  }