为了进行电商平台京东的API开发，首先我们需要做下面几件事情。
1）开发者注册一个账号
2）然后为每个京东应用注册一个应用程序键（App Key) 。
3）下载京东API的SDK并掌握基本的API基础知识和调用
4）利用SDK接口和对象，传入AppKey或者必要的时候获取并传入SessionKey来进行程序开发。
5）利用京东平台的文档中心和API测试工具，对接口进行测试。从而了解返回信息，方便程序获取。
以上是一般京东API应用开发的关键流程，其中通过京东文档中心和API测试工具，进行概念了解和接口信息查询很重要。因为这些数据就是我们需要在逐步显示出来的。京东的API很多，不过都分为了好几个领域，慢慢就会了解深入了。
以下图为例：
请求参数：num_iid=10052938170302，参数说明：num_iid:JD商品ID
注册地址：获得Key和secret
得出数据：Request address:
https://api-gw.onebound.cn/jd/item_get/?key=&
&num_iid=10052938170302&&lang=zh-CN&secret= --------------------------------------- Result Object: --------------------------------------- { "item": { "num_iid": "10052938170302", "title": "小米红米Redminote11tPro+新品5G智能拍照手机天玑8100", "desc_short": "", "price": "2099.00", "total_price": "", "suggestive_price": "", "orginal_price": "9999.00", "nick": "小米手机官方旗舰店", "num": 33, "min_num": 0, "detail_url": "https://item.jd.com/10052938170302.html#crumb-wrap", "pic_url": "m.360buyimg.com/mobilecms/s750x750_jfs/t1/211438/1/22916/111566/62960a7fEfc82232f/d2f530e880401354.jpg", "brand": "小米（MI）", "brandId": "18374", "rootCatId": "653", "cid": "655", "created_time": "", "modified_time": "", "delist_time": "", "desc": "<div class=\"zn1St215127\" style=\"color:#000003;border-color:#485710;height:0px\"></div><div class=\"zn-material\"><img src=\"https://img30.360buyimg.com/imgzone/jfs/t1/3736/23/19368/433188/62a9ca8cE6296f169/f0eaa29ff798215f.jpg\" width=\"750\" style=\"width:750px\"></div><div 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