YouTube 数据 API - concurrentViewers 抛出错误

Question

我试图从实时视频中获取并发观看者，但每当我尝试将值存储在变量中时，我总是收到错误消息。

代码片段如下。错误在 var videoConcureentViewrs...

行

var part = 'snippet,statistics';
var params = {'id': videoID};

var response = YouTube.Videos.list(part, params);
var video = response.items[0];
var videoViewCount = video.statistics.viewCount;
var videoConcurrentViewrs = video.liveStreamingDetails.concurrentViewers;

Answer 1

修改点：

• 在这种情况下，请在部分的值中包含liveStreamingDetails。
• 并且，在 YouTube.Videos.list，参数的 part 可以作为数组给出。

当以上几点反映到你的脚本中，就会变成下面这样。

修改后的脚本：

var part = ['snippet', 'statistics', 'liveStreamingDetails'];  // Modified
var params = {'id': videoID};

var response = YouTube.Videos.list(part, params);
var video = response.items[0];
var videoViewCount = video.statistics.viewCount;
var videoConcurrentViewrs = video.liveStreamingDetails.concurrentViewers;
console.log(videoConcurrentViewrs)  // Added

注：

• 如果你的videoID不是直播视频，concurrentViewers就是undefined。请注意这一点。

  liveStreamingDetails: The liveStreamingDetails object contains metadata about a live video broadcast. The object will only be present in a video resource if the video is an upcoming, live, or completed live broadcast.

参考：

• Videos: list