[#1149] Addressed code review comments (code style, jobs pruning etc.).

lib/pleroma/workers/receiver_worker.ex

@@ -0,0 +1,21 @@
+# Pleroma: A lightweight social networking server
+# Copyright © 2017-2019 Pleroma Authors <https://pleroma.social/>
+# SPDX-License-Identifier: AGPL-3.0-only
+
+defmodule Pleroma.Workers.ReceiverWorker do
+  alias Pleroma.Web.Federator
+
+  # Note: `max_attempts` is intended to be overridden in `new/2` call
+  use Oban.Worker,
+    queue: "federator_incoming",
+    max_attempts: 1
+
+  @impl Oban.Worker
+  def perform(%{"op" => "incoming_doc", "body" => doc}, _job) do
+    Federator.perform(:incoming_doc, doc)
+  end
+
+  def perform(%{"op" => "incoming_ap_doc", "params" => params}, _job) do
+    Federator.perform(:incoming_ap_doc, params)
+  end
+end