API是应用程序的开发接口，在开发程序的时候，我们有些功能可能不需要从到到位去研发，我们可以拿现有的开发出来的功能模块来使用，而这个功能模块，就叫做库(libary)。比如说：要实现数据传输的安全，这就要使用加密技术，使用加密技术就要用到加密算法，而加密算法，已经有好心人，帮我们开发出来了加密算法库，你直接就可以调用，不需要再开发算法。
API测试工具
公共参数
请求地址: api-gw.onebound.cn/amazon/item…
响应示例
"item": {
"detail_url": "https://www.amazon.cn/dp/B07D8SH148?th=1&psc=1",
"crumbs": {
"116087071": "Kindle商店",
"116169071": "Kindle电子书",
"144154071": "小说"
},
"title": "",
"desc_short": "",
"brand": "",
"brandId": "",
"end_time": "",
"rootCatId": "116087071",
"cid": "144154071",
"star": "4-5",
"item_imgs": [],
"nick": " ",
"num": "99",
"num_iid": "B07D8SH148",
"pic_url": "",
"currency_code": "CNY",
"price": "",
"orginal_price": "",
"location": "",
"item_weight": null,
"item_size": "",
"post_fee": "",
"express_fee": "",
"prop_imgs": {
"prop_img": []
},
"props_img": [],
"props_name": "",
"property_alias": "",
"props_list": [],
"seller_info": {
"nick": " ",
"city": "",
"bail": "",
"level": "",
"rate": "",
"score": "",
"delivery_score": "",
"item_score": "",
"shop_type": "",
"user_num_id": "1",
"sid": "1",
"title": " ",
"zhuy": "https://www.amazon.cn/",
"company_name": "",
"menu": []
},
"warning": "",
"shopinfo": {
"shop_name": ""
},
"shop_item": "",
"relate_items": "",
"skus": {
"sku": []
},
"desc": "",
"pinglun": [],
"format_check": "fail"
},
"error": "data error",
"translate_status": "",
"translate_time": 0,
"language": {
"default_lang": "cn",
"current_lang": "cn"
},
"reason": "data error 接口文档：https://open.onebound.cn/help/api/amazon.item_get.html",
"error_code": "5000",
"cache": 0,
"api_info": "today:146 max:10100 all[303=146+83+74];expires:2030-12-31",
"execution_time": "1.365",
"server_time": "Beijing/2022-08-10 14:06:51",
"client_ip": "106.6.34.3",
"call_args": {
"num_iid": "B07D8SH148"
},
"api_type": "amazon",
"translate_language": "zh-CN",
"translate_engine": "google_cn",
"server_memory": "3.92MB",
"request_id": "gw-1.62f34afa43a04",
"last_id": "1142204955"
