Retrieve courses grouped by categories

{
    "data": [
        {
            "id": 0,
            "label": "string",
            "courses": [
                {
                    "id": 0,
                    "title": "string",
                    "photo": {
                        "id": 0,
                        "url": "string"
                    },
                    "activities": [
                        {
                            "id": 0,
                            "title": "string",
                            "photo": {
                                "id": 0,
                                "url": "string"
                            },
                            "items": [
                                {
                                    "id": 0,
                                    "title": "string"
                                }
                            ]
                        }
                    ]
                }
            ]
        }
    ],
    "meta": {
        "current_page": 0,
        "last_page": 0,
        "per_page": 0,
        "total": 0
    }
}