Hypothetical GraphQL API for Backstage

catalog.graphql

interface Node {
  id: ID!
}

interface Entity implements Node
  @loads(from: "catalog")
  @discriminates(with: "kind") {
  id: ID!
  kind: String!
}

interface Component implements Entity & Node
  @discriminates(with: "spec.type") {
  id: ID!
  kind: String!
  displayName: @field(at: "spec.profile.displayName")
}

type Service @implements(interface: "Component") {
  id: ID!
}

type Library @implements(interface: "Component") {
  id: ID!
}

type Website @implements(interface: "Component") {
  id: ID!
}

interface Group
  @implements(interface: "Entity")
  @discriminates(with: "spec.type")
  name: String! @field(at: "spec.profile.name") {
}

type BusinessUnit
@condition(when: "spec.type" is: "Organization")
@implements(interface: "Group") {

}
type Team @implements(interface: "Group") {}
type SubDepartment @implements(interface: "Group") {}