Add LastFm feed for a given user

lib/last_fm/supervisor.ex

@@ -0,0 +1,23 @@
+defmodule LastFm.Supervisor do
+  use Supervisor
+
+  def start_link(init_arg) do
+    Supervisor.start_link(__MODULE__, init_arg, name: __MODULE__)
+  end
+
+  @impl true
+  def init(_init_arg) do
+    :ok = LastFm.Feed.create_table!()
+
+    children = [
+      {LastFm.Refresh, %{user: "cloud8421", api_key: api_key()}}
+    ]
+
+    Supervisor.init(children, strategy: :one_for_one)
+  end
+
+  defp api_key do
+    Application.get_env(:music_library, LastFm, [])
+    |> Keyword.get(:api_key)
+  end
+end