Querrying to 3000

[Andez90]

Hi.

I'm trying to create my first graphql server. i'm working in java and have a server that are listening on http://localhost:8080/GraphQL/graphql with a copy of this server.
i have tryed to ask querrys with postman but i cant finde the "root" querry or any querrys i can ask with data.
i launched your frontend and had some compile errors, fixed them and thought i culd config the frontend to querry to /GraphQL/graphql insted of just /graphql on 8080. but when i run the fronted it's querrying to
Request URL:http://localhost:3000/graphql.

so maby this is not an issue asmutch as me not knowing what to do but are you abel to help me to figure outh what to do?