Support filter based on predicate

Users Dgraph
1

I have the following schema:

type User {
    id: String! @id
    name: String! @search(by: [hash,term])
    followings: [User] 
    followers: [User] @hasInverse(field: followings)
   ...
}

I want to query the list of friends, so I want to execute the following query:

// Friend logic: In my followings list, those users who also follow me.

query($id: String!) {
  getUser(id: $id){
    id
    friends: followings(
      filter:{
        followings:{
           eq: { id: $id }
        }
      }
    ){
      id
      name
    }
  }
}

But I did not find followings in UserFilter, it only has some non-predicate fields.

filter:{
  followings:{
       eq: { id: $id }
    }
  }

This usage doesn’t work.