How to flush or update cache for page by id in TYPO3

Question

I need to flush a cache for a specific page from TYPO3 version 8 backend in the Extension from my Controller. I found a solution for flushing all caches but this is the last option.

Answer 1

GeneralUtility::makeInstance(\TYPO3\CMS\Core\Cache\CacheManager::class) ->flushCachesInGroupByTags('pages', [ 'pageId_'.$id ]);