Modernising the frontend, a headless approach to Drupal
Drupal is a well-rounded CMS, it manages both the back-end content management as well as rendering the content in the front-end, and it does so with great flexibility and a good user-experience.
There are different ways to implement a decoupled solution with Drupal, and it mainly depends on the level of control being handed to the frontend as opposed to the default Drupal approach, we can split these architectures to 2 types, Progressive Decoupling approach and a Fully decoupled approach.
The advantage of using such an architecture is that the user benefits from certain functionalities specific to Drupal like error handling, security, layout management, etc.
Fully decoupled approach, this is an approach where Drupal’s presentation layer is completely replaced with a client-side framework. In this case, Drupal is used as a storage of content and data that will be consumed by the front-end framework of choice. Such an architecture makes it possible to benefit from the user experience offered by other technologies instead of theming from Drupal and can result in highly-interactive, app-like websites.