Directives on node field on Edge type

[danestig]

I have a use case where I want to add a directive on the node field in an edge. Currently this is not supported in sangria-relay.

type FooConnection {
  edges: [FooEdge]
}
​
type FooEdge {
  node: Foo @provides(fields: "bar")
  cursor: String
}

[yanns]

Could you provide some scala code?
On the Field, you can add some custom directives if needed.
There's a new API in sangria helping doing that: sangria-graphql/sangria#913