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push_ex

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PushEx is an implementation of Phoenix websockets/channels which handles best practices of running websockets for you, but allows your business logic to be specified through simple behaviour modules.

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push_ex lib push_ex_web channels push_presence.ex
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lib/push_ex_web/channels/push_presence.ex 

defmodule PushExWeb.PushPresence do

  use Phoenix.Presence,

    otp_app: :push_ex,

    pubsub_server: PushEx.PubSub



  def track(%Phoenix.Socket{topic: topic} = socket) do

    id = PushEx.Config.presence_identifier_fn().(socket)



    track(socket.channel_pid, topic, id, %{

      online_at: PushEx.unix_now()

    })

  end



  def listeners?(topic) do

    topic

    |> list()

    |> Enum.any?()

  end

end