Phoenix presence use list only for authorized users

Questions & Help Questions
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2

you’ll want to intercept the presence_diff message and add your conditional there as well…
https://hexdocs.pm/phoenix/Phoenix.Channel.html#intercept/1-examples

  intercept ["presence_diff"]

  def handle_out("presence_diff", msg, socket) do
    if socket.assigns[:perms] |> Enum.member?("superuser"), do: push(socket, "presence_diff", msg)
    {:noreply, socket}
  end