Yes, but GraphQL is just a thin layer so you can call your existing API's from GraphQL. For example you could start with GraphQL calling an existing HTTP servi

Yes, but GraphQL is just a thin layer so you can call your existing API's from GraphQL. For example you could start with GraphQL calling an existing HTTP service and go from there. A nice talk / use case given here: https://www.youtube.com/watch?v=S0s935RKKB4 https://www.youtube.com/watch?v=S0s935RKKB4