一文读懂聚美优品商品详情 API：返回结构、SKU 与优惠字段解读（附 JSON 样例）

{
    "code": 200,
    "msg": "success",
    "data": {
        "item_base": {
            "item_id": "JM12345678",
            "title": "保湿修护精华液30ml 补水滋润护肤",
            "brand_name": "XX护肤",
            "category": ["护肤", "精华", "保湿精华"],
            "main_images": ["https://xxx.jpg"],
            "shelf_status": 1,
            "expire_notice": "保质期3年"
        },
        "sku_list": [
            {
                "sku_id": "SKU987001",
                "spec_name": "30ml 标准版",
                "market_price": 299,
                "sale_price": 199,
                "stock_num": 236,
                "weight": 0.12
            }
        ],
        "promotion_info": {
            "promotion_type": "coupon",
            "discount_price": 179,
            "coupon_list": [
                {
                    "coupon_amount": 20,
                    "threshold": 199,
                    "start_time": "2026-10-01 00:00:00",
                    "end_time": "2026-11-30 23:59:59"
                }
            ],
            "gift_info": [{"gift_name": "小样5ml","gift_num":1}]
        },
        "desc_info": {
            "selling_point": "深层补水、敏感肌可用",
            "detail_html": "<p>产品详情图文...</p>"
        },
        "extra": {
            "sale_count": 12580,
            "comment_count": 3692,
            "delivery_rule": "48小时内发货，满99包邮"
        }
    }
}