How to link nodes of same type together?

Users
2

Maybe something like this


upsert {
  query {
    q(func: type(out-edges)) {
      P as person  
      F as friend
    }
      #If the value in the userId is a UID
      qP as qPerson(func: uid(P))
      qF as qFriend(func: uid(F))

      #If the value in the userId is any value
      qP as qPerson(func: eq(myID, val(P)))
      qF as qFriend(func: eq(myID, val(F)))
      
  }

  mutation {
    set {
      uid(qP) <friend> uid(qF) .
    }
  }
}