_user_dropdown.html.erb

<li id='notifications_container' class="drawer-pf-trigger dropdown notifification-dropdown"> </li>
<li class="dropdown">
  <%= user_header %>
  <ul class="dropdown-menu pull-right">
    <% authorized_menu_actions(Menu::Manager.items(:side_menu)).map do |item| %>
        <% case item %>
        <% when Menu::Item %>
          <%= menu_item_tag item %>
        <% when Menu::Divider %>
          <%= content_tag(:li, "", :class => "divider") %>
        <% end %>
    <% end %>
  </ul>
</li>

<%= mount_react_component('NotificationContainer','#notifications_container',{:url => notification_recipients_path}.to_json) %>