What does really use of controller in magento 2

[magento_sage1]

Hi Folks,

Can you share your ideas on

What does really use of controller in magento 2.

Thanks

[Manthan Dave]

Hi @magento_sage1

Well AKAIK - in Magento 2 controller is mainly used for routing purpose - meaning to route the actual path and call the specific methods !

Controllers are responsible for processing all requests made via a url. If you hit the url  yourwebsitedomain.com/index.php/mycustom/test - so in the controllers/mycustom/test.php and inside of that the viewAction() method called

Refer this link for the same - https://devdocs.magento.com/guides/v2.2/extension-dev-guide/routing.html

Also refer this - https://stackoverflow.com/questions/14283920/magento-model-vs-block-vs-controller-etc