{
    "order_id": 10,
    "products": [
        {
            "product_type": "material",
            "material_id": 12,
            "quantity": 11
        },
        {
            "product_type": "material",
            "material_id": 100,
            "quantity": 10,
            "warehouse_id": 100
        },
        {
            "product_type": "service",
            "name": "service1"
        }
    ],
    "empty_list": []
}