如何使用 YouTube API v3 在任何视频中获取字幕？

Question

如果我能收到任何带字幕的 YouTube 视频的字幕，你能帮帮我吗？ 而且，如果是，我该怎么做？

我正在使用此请求获取字幕 ID - https://www.googleapis.com/youtube/v3/captions?part=id,snippet&videoId=id.

在此之后，我发送了这个请求https://www.googleapis.com/youtube/v3/captions/captionId

我添加了下一个范围： 'https://www.googleapis.com/auth/youtube.readonly https://www.googleapis.com/auth/youtube.force-ssl https://www.googleapis.com/auth/youtubepartner' .

但是结果收到了403错误：

{
    "error": {
        "code": 403,
        "message": "The permissions associated with the request are not sufficient to download the caption track. The request might not be properly authorized, or the video order might not have enabled third-party contributions for this caption.",
        "errors": [
            {
                "message": "The permissions associated with the request are not sufficient to download the caption track. The request might not be properly authorized, or the video order might not have enabled third-party contributions for this caption.",
                "domain": "youtube.caption",
                "reason": "forbidden",
                "location": "id",
                "locationType": "parameter"
            }
        ]
    }
}