defmodule <%= module %>Channel do use <%= web_module %>, :channel @impl true 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 @impl true 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). @impl true 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