The image is pretty misleading. It looks as if GraphQL server connects you to REST and SQL.
In fact you simply have functions called resolvers where you write your logic to get data from wherever you want. SQL, NoSQL, API, filesystem, etc.
In fact you simply have functions called resolvers where you write your logic to get data from wherever you want. SQL, NoSQL, API, filesystem, etc.
GraphQL should just be proxy layer between actual client and the actual, multiple, APIs.