Kit DnD Area Grid

Area Draggable

[
    {
        "id": "a-4",
        "list": []
    },
    {
        "id": "a-2",
        "list": [
            {
                "id": "ar-b-1"
            },
            {
                "id": "a-1",
                "list": [
                    {
                        "id": "ar-a-1"
                    },
                    {
                        "id": "ar-a-2"
                    }
                ]
            },
            {
                "id": "ar-b-2"
            },
            {
                "id": "ar-b-3"
            },
            {
                "id": "ar-b-4"
            }
        ]
    },
    {
        "id": "a-3",
        "list": [
            {
                "id": "ar-c-1"
            },
            {
                "id": "ar-c-2"
            },
            {
                "id": "ar-c-3"
            }
        ]
    }
]