demo.json

{
  "users": [
    {
      "firstName": "Max",
      "lastName": "Wheeler",
      "username": "maxwheeler",
      "checkedIn": true
    },
    {
      "firstName": "Tim",
      "lastName": "Riley",
      "username": "timeriley",
      "checkedIn": true
    },
    {
      "firstName": "Michael",
      "lastName": "Honer",
      "username": "michaelhoney",
      "checkedIn": false
    },
    {
      "firstName": "Sammy",
      "lastName": "Margalit",
      "username": "sammymargalit",
      "checkedIn": false
    },
    {
      "firstName": "Josephine",
      "lastName": "Hall",
      "username": "josephinehall",
      "checkedIn": true
    },
    {
      "firstName": "Anthony",
      "lastName": "Kolber",
      "username": "anthonykolber",
      "checkedIn": false
    },
    {
      "firstName": "Alex",
      "lastName": "Timofeev",
      "username": "alextimofeev",
      "checkedIn": true
    }
  ]
}