Include artists and cover in latest record JSON

lib/music_library_web.ex

@@ -50,6 +50,12 @@ defmodule MusicLibraryWeb do
     end
   end
 
+  def json do
+    quote do
+      unquote(verified_routes())
+    end
+  end
+
   def live_view do
     quote do
       use Phoenix.LiveView,

lib/music_library_web/controllers/collection_json.ex

@@ -1,5 +1,11 @@
 defmodule MusicLibraryWeb.CollectionJSON do
+  use MusicLibraryWeb, :json
+
   def show(%{record: record}) do
-    Map.take(record, [:title])
+    %{
+      artists: Enum.map(record.artists, & &1.name),
+      title: record.title,
+      cover_url: url(~p"/covers/#{record.id}?#{[vsn: record.cover_hash]}")
+    }
   end
 end