Add front end service for staff controls

spec/requests/admin/flagged_topics_controller_spec.rb

@@ -0,0 +1,19 @@
+require 'rails_helper'
+
+RSpec.describe Admin::FlaggedTopicsController do
+  let(:admin) { Fabricate(:admin) }
+  let!(:flag) { Fabricate(:flag) }
+
+  before do
+    sign_in(admin)
+  end
+
+  it "returns a list of flagged topics" do
+    get "/admin/flagged_topics.json"
+    expect(response).to be_success
+
+    data = ::JSON.parse(response.body)
+    expect(data['flagged_topics']).to be_present
+    expect(data['users']).to be_present
+  end
+end