The GraphQL data layer is a tool available in development mode. This is where all of the data imported into a Gridsome project is temporarily stored. Think of it as a local database that helps you work faster and better with your data.

Data coming from the GraphQL data layer is generated into static content. There is no real-time connection between the data layer and the source the data is imported from. This means you need to re-generate the website to get the latest data updates.