setup edge caching

pages/api/index.ts

@@ -131,6 +131,10 @@ export default async function handler(req: NextApiRequest, res: NextApiResponse)
   // If method is GET, then the API is a normal request to the OneDrive API for files or folders
   const { path = '/', raw = false, next = '' } = req.query
 
+  // Set edge function caching for faster load times, check docs:
+  // https://vercel.com/docs/concepts/functions/edge-caching
+  res.setHeader('Cache-Control', 'max-age=60, s-maxage=3600, stale-while-revalidate')
+
   // Sometimes the path parameter is defaulted to '[...path]' which we need to handle
   if (path === '[...path]') {
     res.status(400).json({ error: 'No path specified.' })