mandarin

defmodule <%= module %>Channel do
  use <%= web_module %>, :channel

  def join("<%= singular %>:lobby", payload, socket) do
    if authorized?(payload) do
      {:ok, socket}
    else
      {:error, %{reason: "unauthorized"}}
    end
  end

  # Channels can be used in a request/response fashion

  # by sending replies to requests from the client

  def handle_in("ping", payload, socket) do
    {:reply, {:ok, payload}, socket}
  end

  # It is also common to receive messages from the client and

  # broadcast to everyone in the current topic (<%= singular %>:lobby).

  def handle_in("shout", payload, socket) do
    broadcast socket, "shout", payload
    {:noreply, socket}
  end

  # Add authorization logic here as required.

  defp authorized?(_payload) do
    true
  end
end