Store Last.fm API key with encrypted secret

lib/music_library/secrets.ex

@@ -0,0 +1,14 @@
+defmodule MusicLibrary.Secrets do
+  alias MusicLibrary.Repo
+  alias MusicLibrary.Secrets.Secret
+
+  def store(name, value) do
+    %Secret{}
+    |> Secret.changeset(%{name: name, value: value})
+    |> Repo.insert(on_conflict: :replace_all)
+  end
+
+  def get!(name) do
+    Repo.get!(Secret, name)
+  end
+end