Adding embedded PuSH server

spec/controllers/api/push_controller_spec.rb

@@ -0,0 +1,13 @@
+require 'rails_helper'
+
+RSpec.describe Api::PushController, type: :controller do
+  describe 'POST #update' do
+    context 'with hub.mode=subscribe' do
+      pending
+    end
+
+    context 'with hub.mode=unsubscribe' do
+      pending
+    end
+  end
+end