switch from yarn to npm - other minor updates

lib/myapp/data/reply.ex

@@ -26,13 +26,6 @@ defmodule MyApp.Data.Reply do
   end
 
   # allow user to update reply
-  defp user_update_changeset(reply, params \\ %{}) do
-    reply
-    |> cast(params, [:content])
-    |> force_change(:edited, true) # set edited flag on update
-    |> validate_required([:content])
-  end
-
   @spec insert(map) :: {:ok, map} | {:error, map}
   def insert(params) do
     {:ok, data} = Repo.transaction(fn ->

lib/myapp_web/controllers/reply_controller.ex

@@ -50,10 +50,8 @@ defmodule MyAppWeb.ReplyController do
 
   @spec mod_update(map, map) :: any
   def mod_update(conn, params) do
-    {:ok, _} = Data.Reply.mod_update(params)
-    conn
-    |> put_status(200)
-    |> Response.json("ok")
+    Data.Reply.mod_update(params)
+    Response.json(conn, "ok")
   end
   
 end