技术实战：Mercari（煤炉）API商品详情接口技术解析与标准JSON返回参考

json{
  "code": 0,
  "msg": "success",
  "request_id": "req_20260827102245789",
  "data": {
    "product_id": "m12345678901",
    "title": "【中古 ほぼ未使用】ニューヨーク発 レザートートバッグ ブラック A4収納可",
    "category_info": {
      "category_id": 12345,
      "category_path": "レディース > バッグ > トートバッグ"
    },
    "seller_info": {
      "seller_id": "u987654321",
      "seller_name": "中古雑貨ショップ",
      "seller_rating": "4.9",
      "total_sales": 1268,
      "is_anonymous": true
    },
    "price_info": {
      "current_price": "3500",
      "currency": "JPY",
      "original_price": "12000",
      "shipping_fee_payer": "seller",
      "platform_fee": "350",
      "negotiation_allowed": true
    },
    "product_status": {
      "condition_level": 2,
      "condition_desc": "やや傷や汚れあり",
      "is_on_sale": true,
      "view_count": 2368,
      "favorite_count": 189,
      "comment_count": 12
    },
    "stock_info": {
      "total_stock": 1,
      "variations": [
        {
          "variation_id": "v123456",
          "spec_text": "ブラック フリーサイズ",
          "variation_price": "3500",
          "variation_stock": 1
        }
      ]
    },
    "image_info": {
      "main_images": [
        "https://static.mercdn.net/item/detail/orig/photos/m12345678901_1.jpg",
        "https://static.mercdn.net/item/detail/orig/photos/m12345678901_2.jpg",
        "https://static.mercdn.net/item/detail/orig/photos/m12345678901_3.jpg"
      ],
      "detail_images": [
        "https://static.mercdn.net/item/detail/orig/photos/m12345678901_4.jpg",
        "https://static.mercdn.net/item/detail/orig/photos/m12345678901_5.jpg"
      ]
    },
    "product_attr": {
      "brand_name": "無印良品",
      "size_info": "高さ30cm 幅40cm マチ10cm",
      "description": "数回使用しましたが、目立った傷や汚れはありません。A4サイズの書類が収納可能です。"
    },
    "logistics_info": {
      "ship_from": "東京都",
      "estimated_days": "1-2日",
      "shipping_method": "らくらくメルカリ便"
    },
    "after_sale": {
      "support_return": false,
      "platform_guarantee": true
    }