Sockets phoenix

notif_channel.ex

defmodule Trophus.NotifChannel do
	use Trophus.Web, :channel
	
	intercept ["new_msg"]

	def join("notifs:" <> user_id, msg, socket) do
		IO.puts user_id
		{:ok, socket}
	end
	 
	def handle_in("new_msg", socket) do
    broadcast! socket, "new_msg", %{ping: 1}
    {:noreply, socket}
  end

  def handle_out("new_msg", payload, socket) do
    push socket, "new_msg", payload
    {:noreply, socket}
  end

end

user_socket.ex

defmodule Trophus.UserSocket do
  use Phoenix.Socket

  ## Channels
  channel "notifs:*", Trophus.NotifChannel

  ## Transports
  transport :websocket, Phoenix.Transports.WebSocket
  transport :longpoll, Phoenix.Transports.LongPoll

  # Socket params are passed from the client and can
  # be used to verify and authenticate a user. After
  # verification, you can put default assigns into
  # the socket that will be set for all channels, ie
  #
  #     {:ok, assign(socket, :user_id, verified_user_id)}
  #
  #  To deny connection, return `:error`.
  def connect(_params, socket) do
    {:ok, socket}
  end

  # Socket id's are topics that allow you to identify all sockets for a given user:
  #
  #     def id(socket), do: "users_socket:#{socket.assigns.user_id}"
  #
  # Would allow you to broadcast a "disconnect" event and terminate
  # all active sockets and channels for a given user:
  #
  #     MyApp.Endpoint.broadcast("users_socket:" <> user.id, "disconnect", %{})
  #
  # Returning `nil` makes this socket anonymous.
  def id(_socket), do: nil
end