/api/groups and /api/invites refactored, fixed some inserts/updates in which I didn't include the id

src/pages/api/discounts/[id].ts

@@ -48,7 +48,8 @@ async function patch(req: NextApiRequest, res: NextApiResponse) {
 
     await db.collection("discounts").updateOne(
       { id: id },
-      { $set: req.body }
+      { $set: { id: id, ...req.body},
+      { upsert: true }
     );
     
     res.status(200).json({ ok: true });