Question

我正在尝试使用YouTube API for .NET从视频条目中获取评论Feed。我正在研究WPF和C＃中的一个程序，但在我的生活中似乎无法弄清楚如何检索这个feed。

我尝试查看YouTube API Developer's Guide，但似乎缺少有关评论供稿的一些信息（靠近页面底部）。

Answer 1

This has changed in version 3 of the YouTube API. There is a new endpoint called commentThreads/list which allows you to return a thread of comments for a resource.

If you want to return a list of comments on a video resource, set up a GET request with vendor class and part=id,snippet. I'll be using https://www.youtube.com/watch?v=HwNIDcwfRLY as an example:

videoId=[VIDEO_ID]

Let's use the first comment returned as an example:

HTTP GET https://www.googleapis.com/youtube/v3/commentThreads?part=id%2Csnippet&videoId=HwNIDcwfRLY&key={YOUR_API_KEY}

Note that the comment isn't actually in this { "kind": "youtube#commentThread", "etag": "\"DsOZ7qVJA4mxdTxZeNzis6uE6ck/jhK_kJqnNF8_fiRI_o7w6ehubv8\"", "id": "z120sfshyxzewt1nx23sevyr1vu1jd2pr04", "snippet": { "videoId": "HwNIDcwfRLY", "topLevelComment": { "kind": "youtube#comment", "etag": "\"DsOZ7qVJA4mxdTxZeNzis6uE6ck/h903NemnXx-8Hfe6lRIYCFERSe4\"", "id": "z120sfshyxzewt1nx23sevyr1vu1jd2pr04", "snippet": { "authorDisplayName": "mach-a-chine seahawksgoonie", "authorProfileImageUrl": "https://lh3.googleusercontent.com/-XdUIqdMkCWA/AAAAAAAAAAI/AAAAAAAAAAA/4252rscbv5M/photo.jpg?sz=50", "authorChannelUrl": "http://www.youtube.com/channel/UCBmJ0sw7plIZHLvhfz7oo_w", "authorChannelId": { "value": "UCBmJ0sw7plIZHLvhfz7oo_w" }, "videoId": "HwNIDcwfRLY", "textDisplay": "", "authorGoogleplusProfileUrl": "https://plus.google.com/102274783439566633837", "canRate": true, "viewerRating": "none", "likeCount": 0, "publishedAt": "2016-02-05T03:42:35.158Z", "updatedAt": "2016-02-05T03:42:35.158Z" } }, "canReply": true, "totalReplyCount": 0, "isPublic": true } } object. topLevelComment returns the empty string, which is a known issue with the YouTube API. We need to make an additional request to textDisplay with commentThreads/list, where id=[COMMENT_ID] is [COMMENT_ID]:

topLevelComment.id

The resulting response's HTTP GET https://www.googleapis.com/youtube/v3/commentThreads?part=id%2Csnippet&id=z120sfshyxzewt1nx23sevyr1vu1jd2pr04&key={YOUR_API_KEY} dictionary will have the user's comment as the value for the snippet key:

textDisplay

The comment is: "my next ring tone! yeah boy!"

Note that you can also pass in a list of up to 50 comma-separated "snippet": { "authorDisplayName": "mach-a-chine seahawksgoonie", "authorProfileImageUrl": "https://lh3.googleusercontent.com/-XdUIqdMkCWA/AAAAAAAAAAI/AAAAAAAAAAA/4252rscbv5M/photo.jpg?sz=50", "authorChannelUrl": "http://www.youtube.com/channel/UCBmJ0sw7plIZHLvhfz7oo_w", "authorChannelId": { "value": "UCBmJ0sw7plIZHLvhfz7oo_w" }, "videoId": "HwNIDcwfRLY", "textDisplay": "my next ring tone! yeah boy!\ufeff", "authorGoogleplusProfileUrl": "https://plus.google.com/102274783439566633837", "canRate": true, "viewerRating": "none", "likeCount": 0, "publishedAt": "2016-02-05T03:42:35.158Z", "updatedAt": "2016-02-05T03:42:35.158Z" } } or id strings of comment objects to retrieve per API call.

See the Retrieve comments for a video guide for additional information and sample code.

Answer 2

YouTubeRequest request = ... // Your request object    
Video v = ... // Your video object
Feed<Comment> comments = request.GetComments(v);

comments.entries将包含视频v的所有评论作为Comment个对象，因此您根本不需要使用Feed。

YouTube API评论Feed

2 个答案: