Resolve array in Appollo federation


i have following type

type Campaign {
  _id: String!
  campaignMetrics: CampaignMetrics
  campaignName: String
  channels: [Channels!]
  created: DateTime!
  jobList: JobList
  mainPeriod: Period
  updated: DateTime!

how can resolve the reference to all the channels properly?

Is it possible to use the whole array as reference and load it on the channel service?