我正在尝试查询Search API，并在url中设置了responseGroup = base来限制响应中的项目，但是它仍然向我发送了所有31个项目属性（基组中为12个），这消耗了我需要的带宽和内存是原来的4倍。
这是我的查询示例：
https://api.walmartlabs.com/v1/search?apiKey=[myapikey]&numItems=1&start=1&query=apple%20watch%20screen%20protector&responseGroup=base
和响应：
{
"query": "apple watch screen protector",
"sort": "relevance",
"responseGroup": "base",
"totalResults": 707,
"start": 1,
"numItems": 1,
"items": [{
"itemId": 469667798,
"parentItemId": 469667798,
"name": "RinoGear [6-PACK] Apple Watch 38mm (Series 1, 2, 3) Screen Protector [Active Protection] Sport Flexible HD Crystal Clear Anti-Bubble Film",
"msrp": 6.95,
"salePrice": 4.95,
"upc": "712038084487",
"categoryPath": "Jewelry/Watches/Mens Watches/Mens Smart Watches",
"shortDescription": "RinoGear is the internet's leading manufacturer of screen protection products for active and daily use. Are you tired of screen protectors that: 1. Get scratched easily? 2. Only give you one chance to install it in position?3. Distort the images on your screen?4. Simply do not provide adequate protection? INTRODUCING: RinoGear -- The Original Active Screen Protectors * Active Protection - Designed for active use, highly flexible, damage protection.* Military-Grade Material - Virtually indestructible film used by the military to protect aircraft surfaces.* Invisible Ultra Clear - Advanced optical material is used to ensure you get the highest visibility on your screen.* Easy Application - Installation is done by "wet application" which allows you to re-position the film as many times on the surface unlike typical screen protectors.* Bubble Free and Anti-Yellowing - Advanced polymer adhesive is used to prevent the forming of air bubbles and discoloration.* No Sticky Residue - Film from your screen leaves no sticky residue.Why Use A Screen Protector? ALL Screens Get Damaged:Despite the grade of glass, screens still scratch or get damaged. Even so-called unscratchable glass still get scratched. Our tests have proven that no type of screen is invulnerable from damage Damage Comes From Anywhere / Anytime:New tech devices such as smartwatches or phones are expensive. Even placing it in a pocket or purse can ruin it. Don’t risk damaging your tech by not protecting it. Why Use RinoGear SHIELD? Tested Under Harsh Active Conditions:Our screen protectors are put to harsh and extreme conditions by runners, hikers, cyclists, and the like. It can most definitely handle regular wear & tear even if you’re not active.What's Included? * RinoGear film* Microfiber cleaning cloth* Installation assist card* Detailed instructions",
"longDescription": "THE ORIGINAL active screen protector for Apple Watch 38mm - designed for active use, precision laser cut for perfect fitment; made with unique flexible "smart skin" material",
"thumbnailImage": "https://i5.walmartimages.com/asr/aa328cfa-a315-4d39-ab35-1ce106981d23_1.74cba72df03d8c16ba7ffe44856da654.jpeg?odnHeight=100&odnWidth=100&odnBg=FFFFFF",
"mediumImage": "https://i5.walmartimages.com/asr/aa328cfa-a315-4d39-ab35-1ce106981d23_1.74cba72df03d8c16ba7ffe44856da654.jpeg?odnHeight=180&odnWidth=180&odnBg=FFFFFF",
"largeImage": "https://i5.walmartimages.com/asr/aa328cfa-a315-4d39-ab35-1ce106981d23_1.74cba72df03d8c16ba7ffe44856da654.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF",
"productTrackingUrl": "http://linksynergy.walmart.com/fs-bin/click?id=|LSNID|&offerid=223073.7200&type=14&catid=8&subid=0&hid=7200&tmpid=1082&RD_PARM1=https%253A%252F%252Fwww.walmart.com%252Fip%252FRinoGear-6-PACK-Apple-Watch-38mm-Series-1-2-3-Screen-Protector-Active-Protection-Sport-Flexible-HD-Crystal-Clear-Anti-Bubble-Film%252F469667798%253Faffp1%253DkGhYtF3qwzvpUaAP8p5ePeswUiHqBuEtoaWj4POSEkc%2526affilsrc%253Dapi",
"standardShipRate": 0,
"marketplace": true,
"sellerInfo": "TBE Fulfillment",
"productUrl": "http://c.affil.walmart.com/t/api02?l=https%3A%2F%2Fwww.walmart.com%2Fip%2FRinoGear-6-PACK-Apple-Watch-38mm-Series-1-2-3-Screen-Protector-Active-Protection-Sport-Flexible-HD-Crystal-Clear-Anti-Bubble-Film%2F469667798%3Faffp1%3DkGhYtF3qwzvpUaAP8p5ePeswUiHqBuEtoaWj4POSEkc%26affilsrc%3Dapi%26veh%3Daff%26wmlspartner%3Dreadonlyapi",
"customerRating": "4.333",
"numReviews": 2,
"customerRatingImage": "http://i2.walmartimages.com/i/CustRating/4_3.gif",
"categoryNode": "3891_3906_1490361",
"rhid": "32332",
"bundle": false,
"stock": "Available",
"addToCartUrl": "http://c.affil.walmart.com/t/api02?l=http%3A%2F%2Faffil.walmart.com%2Fcart%2FaddToCart%3Fitems%3D469667798%7C1%26affp1%3DkGhYtF3qwzvpUaAP8p5ePeswUiHqBuEtoaWj4POSEkc%26affilsrc%3Dapi%26veh%3Daff%26wmlspartner%3Dreadonlyapi",
"affiliateAddToCartUrl": "http://linksynergy.walmart.com/fs-bin/click?id=|LSNID|&offerid=223073.7200&type=14&catid=8&subid=0&hid=7200&tmpid=1082&RD_PARM1=http%253A%252F%252Faffil.walmart.com%252Fcart%252FaddToCart%253Fitems%253D469667798%257C1%2526affp1%253DkGhYtF3qwzvpUaAP8p5ePeswUiHqBuEtoaWj4POSEkc%2526affilsrc%253Dapi",
"freeShippingOver35Dollars": false,
"giftOptions": {},
"imageEntities": [{
"thumbnailImage": "https://i5.walmartimages.com/asr/d34ed9de-b16d-4d4b-bf01-2e0037220859_1.89304402d998330766cc88ffc6f105af.jpeg?odnHeight=100&odnWidth=100&odnBg=FFFFFF",
"mediumImage": "https://i5.walmartimages.com/asr/d34ed9de-b16d-4d4b-bf01-2e0037220859_1.89304402d998330766cc88ffc6f105af.jpeg?odnHeight=180&odnWidth=180&odnBg=FFFFFF",
"largeImage": "https://i5.walmartimages.com/asr/d34ed9de-b16d-4d4b-bf01-2e0037220859_1.89304402d998330766cc88ffc6f105af.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF",
"entityType": "SECONDARY"
},
{
"thumbnailImage": "https://i5.walmartimages.com/asr/ca2f25a1-b2b9-48ac-aa07-caaf81a2a888_1.f5692dd141c31331e89b74f4dfbe78bc.jpeg?odnHeight=100&odnWidth=100&odnBg=FFFFFF",
"mediumImage": "https://i5.walmartimages.com/asr/ca2f25a1-b2b9-48ac-aa07-caaf81a2a888_1.f5692dd141c31331e89b74f4dfbe78bc.jpeg?odnHeight=180&odnWidth=180&odnBg=FFFFFF",
"largeImage": "https://i5.walmartimages.com/asr/ca2f25a1-b2b9-48ac-aa07-caaf81a2a888_1.f5692dd141c31331e89b74f4dfbe78bc.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF",
"entityType": "SECONDARY"
},
{
"thumbnailImage": "https://i5.walmartimages.com/asr/91995a72-4490-4209-9c0a-5f39781d4e6b_1.4ccae1cbbfc7c8f2e7ceb89170cd3687.jpeg?odnHeight=100&odnWidth=100&odnBg=FFFFFF",
"mediumImage": "https://i5.walmartimages.com/asr/91995a72-4490-4209-9c0a-5f39781d4e6b_1.4ccae1cbbfc7c8f2e7ceb89170cd3687.jpeg?odnHeight=180&odnWidth=180&odnBg=FFFFFF",
"largeImage": "https://i5.walmartimages.com/asr/91995a72-4490-4209-9c0a-5f39781d4e6b_1.4ccae1cbbfc7c8f2e7ceb89170cd3687.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF",
"entityType": "SECONDARY"
},
{
"thumbnailImage": "https://i5.walmartimages.com/asr/181c8dce-312f-4b40-83b5-5e34c9b832a5_1.0b5589b7a9cbeb0a293c7bb51fed9b69.jpeg?odnHeight=100&odnWidth=100&odnBg=FFFFFF",
"mediumImage": "https://i5.walmartimages.com/asr/181c8dce-312f-4b40-83b5-5e34c9b832a5_1.0b5589b7a9cbeb0a293c7bb51fed9b69.jpeg?odnHeight=180&odnWidth=180&odnBg=FFFFFF",
"largeImage": "https://i5.walmartimages.com/asr/181c8dce-312f-4b40-83b5-5e34c9b832a5_1.0b5589b7a9cbeb0a293c7bb51fed9b69.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF",
"entityType": "SECONDARY"
},
{
"thumbnailImage": "https://i5.walmartimages.com/asr/4cc53f1e-ad60-4b53-98dc-1d794cd096f9_1.7834b744d625fde3f56830c11de9eb99.jpeg?odnHeight=100&odnWidth=100&odnBg=FFFFFF",
"mediumImage": "https://i5.walmartimages.com/asr/4cc53f1e-ad60-4b53-98dc-1d794cd096f9_1.7834b744d625fde3f56830c11de9eb99.jpeg?odnHeight=180&odnWidth=180&odnBg=FFFFFF",
"largeImage": "https://i5.walmartimages.com/asr/4cc53f1e-ad60-4b53-98dc-1d794cd096f9_1.7834b744d625fde3f56830c11de9eb99.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF",
"entityType": "SECONDARY"
},
{
"thumbnailImage": "https://i5.walmartimages.com/asr/e1582526-6f8d-4942-833c-a3cbfd56e0e5_1.660e5fdba3e0502f8730b17e75e363ff.jpeg?odnHeight=100&odnWidth=100&odnBg=FFFFFF",
"mediumImage": "https://i5.walmartimages.com/asr/e1582526-6f8d-4942-833c-a3cbfd56e0e5_1.660e5fdba3e0502f8730b17e75e363ff.jpeg?odnHeight=180&odnWidth=180&odnBg=FFFFFF",
"largeImage": "https://i5.walmartimages.com/asr/e1582526-6f8d-4942-833c-a3cbfd56e0e5_1.660e5fdba3e0502f8730b17e75e363ff.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF",
"entityType": "SECONDARY"
},
{
"thumbnailImage": "https://i5.walmartimages.com/asr/aa328cfa-a315-4d39-ab35-1ce106981d23_1.74cba72df03d8c16ba7ffe44856da654.jpeg?odnHeight=100&odnWidth=100&odnBg=FFFFFF",
"mediumImage": "https://i5.walmartimages.com/asr/aa328cfa-a315-4d39-ab35-1ce106981d23_1.74cba72df03d8c16ba7ffe44856da654.jpeg?odnHeight=180&odnWidth=180&odnBg=FFFFFF",
"largeImage": "https://i5.walmartimages.com/asr/aa328cfa-a315-4d39-ab35-1ce106981d23_1.74cba72df03d8c16ba7ffe44856da654.jpeg?odnHeight=450&odnWidth=450&odnBg=FFFFFF",
"entityType": "PRIMARY"
}
],
"offerType": "ONLINE_ONLY",
"availableOnline": true
}],
"facets": []
}
基本responseGroup应该只包含12个属性，但应具有31个属性。
答案 0 :(得分：1)
似乎API确实尊重了responseGroup参数，因为在full和base之间响应确实略有不同，而且API响应本身也表明它是base类型还是full类型。
似乎documentation已过时，这种情况到处都是。例如，即使这样声明，也不可能请求format=xml。完整响应中唯一获得的不同键似乎是brandName, clearance, preOrder, attributes。
但是他们确实声明该API仍处于测试阶段，因此我认为他们正在积极地在不更新文档的情况下进行开发。