Magento controller only executing once - cannot disable cache

Question

I have a controller that only executes once after the cache is cleared. After that the response is always the same - cache is there instead of a new execution.

The class is extends\Magento\Framework\App\Action\Action:

class Index extends \Magento\Framework\App\Action\Action

What can I do inside this controller to get rid of the cache activity?

This is not related to any block, meaning that it cannot be done via xml cacheable=false option.

Thank you !

• PЯINCƎ: Are you sure that cache comes from controller side ? try to stop loading layout and check the controller result again

Answer 1

You can add cache control header inside your controller

/**
 * This action render random number for each request
 */
 public function execute()
 {
 $page = $this->pageFactory->create();
 //We are using HTTP headers to control various page caches (varnish, fastly, built-in php cache)
 $page->setHeader('Cache-Control', 'no-store, no-cache, must-revalidate, max-age=0', true);
 return $page;
 }

Reference: https://devdocs.magento.com/guides/v2.3/extension-dev-guide/cache/page-caching/public-content.html