Is it possible to use forceResolver on an interface ?

[n-e]

Hi, is it possible to use forceResolver on an interface and not a type ?

With the following code I don't have any resolvers generated:

interface Node {
    id: ID!
    parent: Node @goField(forceResolver: true)
    children: [Node!]! @goField(forceResolver: true)
}

type Elem implements Node {
    id: ID!
    parent: Node
    children: [Node!]!
    # plenty of other properties below
}
type Elem2 ...
type Elem3 ...
type Elem4 ...

My goal is to implement the parent/children resolvers only once since the logic is the same for all the Node types.

If not possible what would be the best way to achieve that?

Thanks!

[clayne11]

It appears that this isn't supported today, although I would be supportive of adding this functionality.

Probably the simplest way to achieve this with today's APIs is to add an implementation method on the Resolver that accepts the interface type and delegate all the concrete implementations to that method.

// resolver.go
func (r *Resolver) Children(node model.Node) ([]*model.Node, error) {
    // common implementation goes here
}

// schema.resolvers.go
// Children is the resolver for the children field.
func (r *elem1Resolver) Children(ctx context.Context, obj *model.Exercise) ([]*model.Employee, error) {
	return r.Resolver.Children(obj)
}

// Children is the resolver for the children field.
func (r *elem2Resolver) Children(ctx context.Context, obj *model.Flying) ([]*model.Employee, error) {
	return r.Resolver.Children(obj)
}

// Children is the resolver for the children field.
func (r *elem3Resolver) Children(ctx context.Context, obj *model.Gaming) ([]*model.Employee, error) {
	return r.Resolver.Children(obj)
}

// Children is the resolver for the children field.
func (r *elem4Resolver) Children(ctx context.Context, obj *model.Other) ([]*model.Employee, error) {
	return r.Resolver.Children(obj)
}