javascript - Firebase child_added for new items only

Question

I am using Firebase and Node with Redux. I am loading all objects from a key as follows.

firebaseDb.child('invites').on('child_added', snapshot => {
})

The idea behind this method is that we get a payload from the database and only use one action to updated my local data stores via the Reducers.

Next, I need to listen for any NEW or UPDATED children of the key invite. The problem now, however, is that the child_added event triggers for all existing keys, as well as newly added ones. I do not want this behaviour, I only require new keys, as I have the existing data retrieved.

I am aware that child_added is typically used for this type of operation, however, i wish to reduce the number of actions fired, and renders triggered as a result.

What would be the best pattern to achieve this goal?

Thanks,

Answer 1

Waitting for answers