Deprecation: #75340 - Methods related to generating traditional Backend AJAX URLs

Description

The following methods have been marked as deprecated:

• TYPO3CMSBackendUtilityBackendUtility->getAjaxUrl()
• TYPO3CMSBackendRoutingUriBuilder->buildUriFromAjaxId()

Impact

Calling one of the methods above will trigger a deprecation log entry.

Affected Installations

Any TYPO3 instance with a third party extension that calls one of the methods above.

Migration

Migrate to UriBuilder routes, which can be registered via Configuration/Backend/AjaxRoutes.php, and can be linked to like this:

/** @var \TYPO3\CMS\Backend\Routing\UriBuilder $uriBuilder */
$uriBuilder = GeneralUtility::makeInstance(\TYPO3\CMS\Backend\Routing\UriBuilder::class);
$path = $uriBuilder->buildUriFromRoute('ajax_myroute');

Keep in mind that the newly created Ajax routes need to implement PSR-7 as well.