How to convert array of object(hasMany relationship data) to array of id?

I'm getting data back from hasura like this:

{
  "data": {
    "movies": [
      {
        "id": "584db434-5caa-475e-b3ec-e98e742f0030",
        "movieid": "abc123",
        "description": "Penquins dancing in antactica",
        "photos": [
          {
            "id": "c4d2833a-4896-42b0-ae8b-0ab9fe71d1d4"
          },
          {
            "id": "e04697e3-21fe-4f0e-8012-443f26293340"
          }
        ]
      }
    ]
  }
} 

But Ember.js can't read and render the relationship data (photos). Is it the "photos" data should be like this?

"photos": [c4d2833a-4896-42b0-ae8b-0ab9fe71d1d4, e04697e3-21fe-4f0e-8012-443f26293340]

How can I convert it in Ember? or in Hasura?