db.json

{
  "posts": [
    {
      "id": "1",
      "title": "a title"
    },
    {
      "id": "2",
      "title": "another title"
    }
  ],
  "comments": [
    {
      "id": "1",
      "text": "a comment about post 1",
      "postId": "1"
    },
    {
      "id": "2",
      "text": "another comment about post 1",
      "postId": "1"
    }
  ],
  "profile": {
    "name": "typicode"
  },
  "users": [
    {
      "id": "1",
      "name": "jewel"
    },
    {
      "id": "2",
      "name": "rana"
    },
    {
      "id": "08ae",
      "username": "sfas"
    },
    {
      "id": "7682",
      "username": "jewel"
    },
    {
      "id": "0eee",
      "username": "sfas"
    },
    {
      "id": "6c89",
      "username": "sf"
    },
    {
      "id": "db87",
      "username": "sdf"
    }
  ]
}