Namespace subgraphs in federation scenario

[torbenj]

Hey guys,

I'm playing around with schema federation in HotChocolate 13(.0.5).

Essentially I have my gateway service and one or more domain services. Everything works fine so far but what I really would like to achieve somehow is to "namespace" all of the subgraphs.

Let's say I have a domain service "BookStore" with the following query type:

[QueryType]
public static class Query
{
    public static Book GetBook()
        => new Book("C# in depth.", new Author("Jon Skeet"));
}

In the resulting distributed graph I can query the book's title like this:

query {
    book{
        title
    }
}

What I would like to be able to is to move the whole subgraph to a "bookstore" object (not sure about the terminology here sry) in order for the query to look like this:

query {
    bookstore {
        book{
            title
        }
    }
}

This way I also could avoid naming clashes between multiple domain services very easily but I have no idea how to do this.

Is there some way to do this?