ios - New message counter

Question

I'm working on a simple social app (using firebase and jsqmessagesviewcontroller) and trying to make "new message" counter. Is there any build-in features in firebase to detect if new child was added? I've tried to make in a such way:

ref.observe(.childAdded, with: { (snapshot) -> Void in
  self.newMsg += 1
})

But this line founds all messages, not only new. Is there any build-in feature which help me to handle with this problem? Thanks in advance.

Answer 1

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