Sourcing data from a Headless CMS

A Headless CMS is a CMS that purely focuses on the content itself and does not care about how it's presented. Traditional CMSes store content in a database and then use a series of HTML templates to control how content gets presented to viewers. In Headless CMSes, however, instead of returning HTML, we return structured data via an API.

Content creators can still add and edit data via a user interface, but the frontend is stored completely separately. This is perfect for when your content creators are not developers, or when you're out and about and want to write a post on your phone without having to spin up your laptop.

With Gatsby's vast plugin ecosystem, your site can support many different Headless CMSes with very little effort. You could write a book on how to implement every one of them into your project, so, instead, let's focus on two – GraphCMS and Prismic.

Important Note

Only implement one of the Headless...