Backend APIs The following APIs are of interest if you want to configure or extend the functionalities of the backend. Contents: Access control Users and groups Password reset functionality Roles Options Other Options File mounts Backend users module Backend modules API Modules.php 3rd level Toplevel Backend GUI DocHeaderComponent ModuleData ModuleInterface ModuleProvider ModuleTemplate ModuleTemplateFactory TypoScript Sudo mode JavaScript ES6 in the TYPO3 Backend Client-side templating Various JavaScript modules Modals Multi-step wizard DocumentService (jQuery.ready substitute) SessionStorage wrapper Ajax request Event API Hotkey API Navigation via JavaScript JavaScript form helpers Ajax Backend layout Backend routing Backend user object Broadcast channels Button components Clipboard Context menus Custom Permissions LoginProvider UriBuilder