我有一个页面,用户可以粘贴Youtube视频网址,然后我需要提取视频的ID以获取视频的缩略图。困难的部分是获得从视频网址中提取视频ID的可靠方法。这里有许多正则表达式解决方案,但对我来说,这些都不是100%可靠的。这里有几个:
这就像是一个拥有更长正则表达式的比赛。我觉得正确的方法是从Youtube的api获取这些信息,但看着它,似乎这个选项不可用:
https://developers.google.com/apis-explorer/#p/youtube/v3/
正如您所看到的,所有内容都基于视频ID。我觉得很荒谬,我需要实际的视频ID来获取有关视频的任何信息,因为没有真实世界的用户甚至不知道视频ID是什么。 Vimeo在其API中内置了此功能。这是一个例子:
https://vimeo.com/api/oembed.json?url=https://vimeo.com/29474908
有没有人为此提供不涉及正则表达式的解决方案?
答案 0 :(得分:1)
执行search with the API适用于不同的YouTube网址类型。该网址作为查询字词 q
传递。
https://www.googleapis.com/youtube/v3/search/?key=<YOUR_KEY>&part=snippet&q=youtu.be/M7lc1UVf-VE
也许某些情况可能导致多个项目,但正常的搜索结果只是一个匹配:
{
kind: "youtube#searchListResponse",
etag: ""m2yskBQFythfE4irbTIeOgYYfBU/j2Px-5q--mgJEsrfjg4L0Mgn_L8"",
regionCode: "ES",
pageInfo: {
totalResults: 1,
resultsPerPage: 5
},
items: [
{
kind: "youtube#searchResult",
etag: ""m2yskBQFythfE4irbTIeOgYYfBU/_1gFVi_i_djlS4OZWPGtcZ3iSLQ"",
id: {
kind: "youtube#video",
videoId: "M7lc1UVf-VE"
},
snippet: {
publishedAt: "2013-04-10T17:25:04.000Z",
channelId: "UC_x5XG1OV2P6uZZ5FSM9Ttw",
title: "YouTube Developers Live: Embedded Web Player Customization",
description: "On this week's show, Jeff Posnick covers everything you need to know about using player parameters to customize the YouTube iframe-embedded player.",
thumbnails: {
default: {
url: "https://i.ytimg.com/vi/M7lc1UVf-VE/default.jpg",
width: 120,
height: 90
},
medium: {
url: "https://i.ytimg.com/vi/M7lc1UVf-VE/mqdefault.jpg",
width: 320,
height: 180
},
high: {
url: "https://i.ytimg.com/vi/M7lc1UVf-VE/hqdefault.jpg",
width: 480,
height: 360
}
},
channelTitle: "Google Developers",
liveBroadcastContent: "none"
}
}
]
}
我使用this answer中的一些网址变体进行了测试,其中大多数工作都是:
var urls = [
'//www.youtube-nocookie.com/embed/M7lc1UVf-VE?rel=0',
'https://www.youtube.com/watch?v=M7lc1UVf-VE&feature=channel',
'https://www.youtube.com/watch?v=M7lc1UVf-VE&playnext_from=TL&videos=osPknwzXEas&feature=sub',
'https://www.youtube.com/ytscreeningroom?v=NRHVzbJVx8I', // <---- invalid
'https://youtu.be/M7lc1UVf-VE',
'https://www.youtube.com/watch?v=M7lc1UVf-VE&feature=youtu.be',
'https://youtu.be/M7lc1UVf-VE',
'https://www.youtube.com/watch?v=M7lc1UVf-VE&feature=channel',
'https://www.youtube.com/watch?v=M7lc1UVf-VE&playnext_from=TL&videos=osPknwzXEas&feature=sub',
'https://www.youtube.com/ytscreeningroom?v=M7lc1UVf-VE', // <---- invalid
'https://www.youtube.com/embed/M7lc1UVf-VE?rel=0',
'https://www.youtube.com/watch?v=M7lc1UVf-VE',
'https://youtube.com/v/M7lc1UVf-VE?feature=youtube_gdata_player',
'https://youtube.com/vi/M7lc1UVf-VE?feature=youtube_gdata_player', // <---- invalid
'https://youtube.com/?v=M7lc1UVf-VE&feature=youtube_gdata_player',
'https://www.youtube.com/watch?v=M7lc1UVf-VE&feature=youtube_gdata_player',
'https://youtube.com/?vi=M7lc1UVf-VE&feature=youtube_gdata_player', // <---- invalid
'https://youtube.com/watch?v=M7lc1UVf-VE&feature=youtube_gdata_player',
'https://youtube.com/watch?vi=M7lc1UVf-VE&feature=youtube_gdata_player',
'https://youtu.be/M7lc1UVf-VE?feature=youtube_gdata_player'
];
var my_key = '<YOUR_KEY>';
function getUri(uri){
$.get('https://www.googleapis.com/youtube/v3/search/?key='+my_key+'&part=snippet&q='+uri, function(data) {
if(data.items.length !== 0)
console.log(data.items[0].snippet.publishedAt);
else
console.warn('no items for',uri)
});
}
for (i = 0; i < urls.length; ++i) {
getUri(urls[i]);
}