Modifying Embers expected json api response

I'm new to Ember and from what I understand it has a very specific way it excepts its json api response to look like. Like so:

{
  "post": {
    "id": 1,
    "title": "Node is not omakase",
    "comments": [1, 2, 3]
  },

  "comments": [{
    "id": 1,
    "body": "But is it _lightweight_ omakase?"
  },
  {
    "id": 2,
    "body": "I for one welcome our new omakase overlords"
  },
  {
    "id": 3,
    "body": "Put me on the fast track to a delicious dinner"
  }]
}

Now the api I've already built has an json response that looks like so:

[
    'data' => [
        'foo' => 'bar'
        'comments' => [
            'data' => [
                ...
            ],
            'meta' => [
                ...
            ]
        ]
    ],
];

The api is pretty big and is working fine with the mobile app. So a code re write would be to costly I would just choose another js framework even though I like Ember the best.

So my question is is there any way I can adapt the expected json response in ember. If yes how hard is it? Worth the time or should I just go for Angular or Aurelia.

or am I completely wrong and there is no one expected response to ember?