how to pass ServletRequest to pojo that does i/o in graphql-java

Question

I need to pass a servlet attribute value to the Query object on a per request basis. I have this much working, but how can I get the real Query object from the qt variable?

    public void service(ServletRequest req, ServletResponse res) throws ServletException, IOException {
    GraphQLSchema schema = getSchemaProvider().getSchema();
    //schema.transform(c -> {});
    GraphQLObjectType t = schema.getQueryType();
    String rootLib = (String) req.getAttribute("ROOTLIB");
    super.service(req, res);
}

Answer 1

extend DefaultQLSchemaProvider and override the getSchema(request:HttpServletRequest):GraphQLSchema method. Then override the GraphQLEndpoint ctor and create the schemaProvider when calling super(GrapQLProvider, ...) ctor.