react mutations blog post - todos

todos.json

{
  "todos": [
    {
      "id": 1,
      "message": "Go to the supermarket",
      "done": false
    },
    {
      "id": 2,
      "message": "Mow the lawn",
      "done": true
    },
    {
      "id": 3,
      "message": "Clean the kitchen",
      "done": true
    },
    {
      "id": 4,
      "message": "Book restaurant reservation",
      "done": false
    }
  ]
}