elixir-ws-test/lib/enchufe_web/channels/timer_channel.ex

defmodule EnchufeWeb.TimerChannel do
  use Phoenix.Channel

  def join("timer:update", _msg, socket) do
    {:ok, socket}
  end
  
  def handle_in("new_time", msg, socket) do
	push socket, "new_time", msg
	{:noreply, socket}
  end
  
  def handle_in("start_timer", _, socket) do
    EnchufeWeb.Endpoint.broadcast("timer:start", "start_timer", %{})
    {:noreply, socket}
  end
  
end