Polish IdempotencyPlug

lib/pleroma/plugs/idempotency_plug.ex

@@ -29,16 +29,16 @@ defmodule Pleroma.Plugs.IdempotencyPlug do
       {:ok, nil} ->
         cache_resposnse(conn, key)
 
-      {atom, message} when atom in [:ignore, :error] ->
-        render_error(conn, message)
-
       {:ok, record} ->
         send_cached(conn, key, record)
+
+      {atom, message} when atom in [:ignore, :error] ->
+        render_error(conn, message)
     end
   end
 
   defp cache_resposnse(conn, key) do
-    Plug.Conn.register_before_send(conn, fn conn ->
+    register_before_send(conn, fn conn ->
       [request_id] = get_resp_header(conn, "x-request-id")
       content_type = get_content_type(conn)
 

lib/pleroma/web/mastodon_api/mastodon_api_controller.ex

@@ -564,7 +564,7 @@ defmodule Pleroma.Web.MastodonAPI.MastodonAPIController do
       case CommonAPI.post(user, params) do
         {:error, message} ->
           conn
-          |> put_status(422)
+          |> put_status(:unprocessable_entity)
           |> json(%{error: message})
 
         {:ok, activity} ->