Sync between Realm App and Compass

MongoDB Atlas App Services & Realm
1

We have a simple swift app, that listens to a simple UserData table. If we make changes in the Realm App everything syncs fine. The code that listens to the changes looks like this

        let results = RealmManager.shared.userRealm.objects(UserData.self)
        
        self.notificationToken = results.observe { (changes: RealmCollectionChange) in
    
            switch changes {
            case .initial:
                NSLog("initial")
                if results.count > 0 {
                    self.name = results[0].name
                }
                
            case .update(let results, _, _, _):
                NSLog("update")
                if results.count > 0 {
                    self.name = results[0].name
                }
                
            case .error(let error):
                // An error occurred while opening the Realm file on the background worker thread
                fatalError("\(error)")
            }
        }

If we edit the data in Compass, we do not get an update call back. However, if we log out, reopen the Realm, re-set up the listener, everything works fine. Is this a known issue and are there any work arounds?

Thanks

2

@Richard_Krueger This is a known issue with Compass - when you edit a document with Compass under the hood it is actually doing a DELETE and INSERT - to get around this use a MongoDB SDK to just update the fields you need and the update notification will fire.

3

@Ian_Ward Ok that is good to know. As I said, it seems to work fine when two separate MongoDB Realm app instances are changing the data, just not when we change the data in Compass. I am still not missing Realm Studio, although it did not have this problem. Compass is a way more featured product.