TotalResults 计数与 YouTube v3 搜索中返回的实际结果不匹配 API

Question

我们正在使用 youtube v3 搜索 API。 “totalResults”计数与 response.items 字段中返回的项目列表不匹配。我在请求中请求 50 个视频。返回的响应显示 totalResults 计数为 65，但响应负载只有 3 个视频。

API : www.googleapis.com/youtube/v3/search/list

请求负载

{key=API_KEY, maxResults=50, order=date, part=snippet, publishedAfter=2017-03-20T23:59:59.999-04:00, publishedBefore=2017-04-19T23:59:59.001-04:00, q=( ( "Wood Mackenzie" OR "Wood Mac" OR Woodmac OR @woodmackenzie ) AND NOT (fleetwood OR "fleet wood" OR 9WoodMac ) )  , type=video}

响应负载

{
 "kind": "youtube#searchListResponse",
 "etag": "\"m2yskBQFythfE4irbTIeOgYYfBU/HTW4WQODZeERIv51VrRfOhir8dg\"",
 "nextPageToken": "CDIQAA",
 "regionCode": "US",
 "pageInfo": {
  "totalResults": 65,
  "resultsPerPage": 50
 },
 "items": [
  {
   "kind": "youtube#searchResult",
   "etag": "\"m2yskBQFythfE4irbTIeOgYYfBU/lnNNrToZHGTehIEJ6bvEx5RZMo4\"",
   "id": {
    "kind": "youtube#video",
    "videoId": "obzlB21t904"
   },
   "snippet": {
    "publishedAt": "2017-04-14T11:38:08.000Z",
    "channelId": "UC60Sa1LQjgy_a-K8ThN4eQw",
    "title": "Fleet wood mac Live at Leeds",
    "description": "",
    "thumbnails": {
     "default": {
      "url": "https://i.ytimg.com/vi/obzlB21t904/default.jpg",
      "width": 120,
      "height": 90
     },
     "medium": {
      "url": "https://i.ytimg.com/vi/obzlB21t904/mqdefault.jpg",
      "width": 320,
      "height": 180
     },
     "high": {
      "url": "https://i.ytimg.com/vi/obzlB21t904/hqdefault.jpg",
      "width": 480,
      "height": 360
     }
    },
    "channelTitle": "KEVIN MARSHALL",
    "liveBroadcastContent": "none"
   }
  },
  {
   "kind": "youtube#searchResult",
   "etag": "\"m2yskBQFythfE4irbTIeOgYYfBU/uYuuTAL3vtnFI1WOYjth0cso2Xo\"",
   "id": {
    "kind": "youtube#video",
    "videoId": "gHAn0SbwKMg"
   },
   "snippet": {
    "publishedAt": "2017-04-06T22:17:31.000Z",
    "channelId": "UC3_MxBSSbmGznoSTgoBQ7_w",
    "title": "Beat Club: British Invasion 60's, Pt-2; Animals-Move-Fleet Wood Mac-J.Mayall-Who-Pacemakers-Kinks",
    "description": "Eric Burdon & Animals: C.C. Rider 0:01 The Move: Wild Tiger Woman 3:55 Fleet Wood Mac: Dragonfly 6:26 John Mayall: My Pretty Girl 9:47 Thunderclap ...",
    "thumbnails": {
     "default": {
      "url": "https://i.ytimg.com/vi/gHAn0SbwKMg/default.jpg",
      "width": 120,
      "height": 90
     },
     "medium": {
      "url": "https://i.ytimg.com/vi/gHAn0SbwKMg/mqdefault.jpg",
      "width": 320,
      "height": 180
     },
     "high": {
      "url": "https://i.ytimg.com/vi/gHAn0SbwKMg/hqdefault.jpg",
      "width": 480,
      "height": 360
     }
    },
    "channelTitle": "ROCK&POPS1_koba",
    "liveBroadcastContent": "none"
   }
  },
  {
   "kind": "youtube#searchResult",
   "etag": "\"m2yskBQFythfE4irbTIeOgYYfBU/tapelxOG4Q3gZRJCR2qaVdt-ZO8\"",
   "id": {
    "kind": "youtube#video",
    "videoId": "5GvLbFBdcF4"
   },
   "snippet": {
    "publishedAt": "2017-04-02T04:48:47.000Z",
    "channelId": "UC6fn383TI1HVDYW4dSEIogQ",
    "title": "\"Dreams\" by fleet wood mac (vocal cover)",
    "description": "I do not own this song. I do not make a profit off of this song. It belongs to the person(s) who wrote it. Please subscribe and comment below any suggestions?!",
    "thumbnails": {
     "default": {
      "url": "https://i.ytimg.com/vi/5GvLbFBdcF4/default.jpg",
      "width": 120,
      "height": 90
     },
     "medium": {
      "url": "https://i.ytimg.com/vi/5GvLbFBdcF4/mqdefault.jpg",
      "width": 320,
      "height": 180
     },
     "high": {
      "url": "https://i.ytimg.com/vi/5GvLbFBdcF4/hqdefault.jpg",
      "width": 480,
      "height": 360
     }
    },
    "channelTitle": "Musikallitee",
    "liveBroadcastContent": "none"
   }
  }
 ]
}

Answer 1

如 documentation 本身所述，totalResults 是：

integer

The total number of results in the result set.Please note that the value is an approximation and may not represent an exact value. In addition, the maximum value is 1,000,000.

You should not use this value to create pagination links. Instead, use the nextPageToken and prevPageToken property values to determine whether to show pagination links.

该值只是一个 approximation/estimate，而不是返回的 items 总数的确切值。我已经用与您相同的详细信息测试了 API，值往往会从 63 变为 64 和 65。

综上所述，您的代码没有任何问题。这只是预期的行为。不幸的是，没有任何地方说明 totalResults 的值基于何处或最适用于何处。最好继续执行不依赖此参数的实现。

TotalResults 计数与 YouTube v3 搜索中返回的实际结果不匹配 API

TotalResults count doesn't match with the actual results returned in YouTube v3 search API

youtube

youtube-api

youtube-data-api