An exercise is converting jf2 (a draft work in progress) into compliant JSON API to see what it's like.

jf2-as-jsonapi.json

{
 "links": {
    "self": "http://tantek.com/2015/295/t2/example-simple-note",
    "prev": "http://tantek.com/2015/295/t1/something",
    "next": "http://tantek.com/2015/295/t3/something-else"
  },
  "data": [{
    "type": "entry",
    "id": "http://tantek.com/some-slug",
    "attributes": {
      "published": "2015-10-21T12:34-0700",
      "category": ["simple", "example"],
      "content": "Example of a simple note"
    },
    "relationships": {
      "author": {
        "data": {
          "id": "http://tantek.com/",
          "type": "card",
          "attributes": {
            "name": "Tantek Çelik",
            "url": "http://tantek.com/"
          },
          "relationships": {
            "photo": {
              "data": {
                "id": "http://tantek.com/photo.jpg",
                "type": "image",
                "attributes": {
                  "url": "http://tantek.com/photo.jpg"
                }
              }
            }
          }
        }
      }
    }
  }]
}