Update record only updates the timestamp not the data

Help
1

this is my update query :

      const response = await client.query(
      q.Let(

        {

          matchRef: q.Select([0], q.Paginate(q.Match(q.Index("sub_search_by_auth"), auth)))

        },

        q.Update(q.Var("matchRef"), {subscription}) // do I need to put the sub inside a data property?

      )

    );

say I have a record in db:

{
  "ref": Ref(Collection("subscriptions"), "275059653136613888"),
  "ts": 1598577889893000,
  "data": {
    "endpoint": "https://fcm.googleapis.com/fcm/send/djvbe6Pbu-Q:APA91bGicad",
    "keys": {
      "p256dh": "BJ99-332131df",
      "auth": "12332dfsdfsdfs"
    }
  }
}

I updated its keys.p256dh from BJ99-332131df to BJ99-332131dfOOOOAAA
and added an new property called extra, so it looks like:

{
  "ref": Ref(Collection("subscriptions"), "275059653136613888"),
  "ts": 1598577889893000,
  "data": {
    "endpoint": "https://fcm.googleapis.com/fcm/send/djvbe6Pbu-Q:APA91bGicad",
    "keys": {
      "p256dh": "BJ99-332131dfOOOOAAA",
      "auth": "12332dfsdfsdfs"
    },
     "extra": {
         "email": "my@email.com"
     }
  }
}

then use the aforementioned update query to update this record.

The only change I can see is the ts, nothing else.

Please help

2

Yes, you need to wrap the updates in data field of param object . More info and examples at https://docs.fauna.com/fauna/current/api/fql/functions/update?lang=javascript#param_object

3

yes, that solved the problem.

Thanks for your help