带有 API v3 的 Youtube 视频标题没有 API 密钥？
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【中文标题】带有 API v3 的 Youtube 视频标题没有 API 密钥？【英文标题】：Youtube Video title with API v3 without API key? 【发布时间】：2015-07-17 00:38:42 【问题描述】：是否可以使用带有 API v3 没有 API 密钥的视频 ID 获取视频标题？我在 API 文档中找不到任何获取标题的信息或示例。
【问题讨论】：
【参考方案1】：无需 API 密钥
要获取视频标题，您将不需要需要 API 密钥，并且您需要向以下人员发出请求：
https://noembed.com/embed?url=https://www.youtube.com/watch?v=dQw4w9WgXcQ
更改所需视频的 YouTube URL。
它也适用于 Vimeo 和许多其他 supported sites，其 URL 如下：
https://noembed.com/embed?url=https://vimeo.com/45196609
详情
如果您直接使用 API，则无法在没有 API 密钥的情况下使用 API v3 的视频 ID 获取视频标题。 YouTube 数据 API v2 已弃用（请参阅：YouTube Data API v2 Deprecation: Frequently Asked Questions），目前 YouTube API 不支持 oEmbed 和 JSONP（请参阅 Issue 4329: oEmbed callback for JSONP）。
但幸运的是，Noembed 服务可让您使用 JSONP 获取 YouTube 视频的标题（和其他数据），而无需 API 密钥。
演示
下面是一个简单的用jQuery获取标题的demo：
var id = 'dQw4w9WgXcQ';
var url = 'https://www.youtube.com/watch?v=' + id;
$.getJSON('https://noembed.com/embed',
format: 'json', url: url, function (data)
alert(data.title);
);
在 JS Bin 上查看 DEMO。
另请参阅以下问题：
Get Youtube information via JSON for single video (not feed) in javascript Response for JSONp request to youtube oembed call giving "invalid label" error【讨论】：
这很棒。还有没有办法进行搜索？【参考方案2】：要获取视频标题，您将需要一个 API 密钥，并且您需要发出以下请求：
https://www.googleapis.com/youtube/v3/videos?part=snippet&id=COMMA_DELIMITED_LIST_OF_IDS&key=YOUR_API_KEY
在返回的数据包中，标题为items.snippet.title
如果没有 API 密钥，您将无法检索 任何 API 数据；所有 API 请求都在配额系统上，密钥用于确定对应用的每日限额收取多少费用。然而，像上面这样的电话是相当便宜的。它总共有 3 个单位（2 个用于 sn-p，1 个用于请求本身）。由于您每天获得 50,000,000 个单位，并且可以为同样的 3 个单位检索多达 50 个 sn-ps，因此使用 API 密钥并没有太大的负担。
【讨论】：
很好，视频长度字段从 API v3 中消失了。为什么他们必须打破这些谷歌人完美运行的东西？ >:( 它并没有消失，它只是在一个不同的“部分”——主要是为了让不需要持续时间的人不会为配额付费（V3 更加模块化，而 V2只是将巨大的 XML 文件返回给所有东西，结果非常浪费）。视频时长在 contentDetails 部分，所以像这样的请求：googleapis.com/youtube/v3/videos?part=contentDetails&id=VIDEO_ID&key=YOUR_API_KEY 将允许您访问 items.contentDetails.duration 参数。请注意，该值采用 ISO-8601-Duration 格式，因此您可能需要对其进行转换。 这个答案已经过时了，看这个***.com/a/48884290/5304495【参考方案3】：这正是oEmbed协议的含义。
oEmbed 是一种允许在 第三方网站。简单的 API 允许网站显示嵌入的 当用户发布指向该内容的链接时（例如照片或视频） 资源，无需直接解析资源。
此文档存储在GitHub。
有关格式的更多信息：https://oembed.com
https://www.youtube.com/oembed?url=http%3A//youtube.com/watch%3Fv%3DM3r2XDceM6A&format=json
示例输出：
"version": "1.0",
"type": "video",
"provider_name": "YouTube",
"provider_url": "http://youtube.com/",
"width": 425,
"height": 344,
"title": "Amazing Nintendo Facts",
"author_name": "ZackScott",
"author_url": "http://www.youtube.com/user/ZackScott",
"html":
"<object width=\"425\" height=\"344\">
<param name=\"movie\" value=\"http://www.youtube.com/v/M3r2XDceM6A&fs=1\"></param>
<param name=\"allowFullScreen\" value=\"true\"></param>
<param name=\"allowscriptaccess\" value=\"always\"></param>
<embed src=\"http://www.youtube.com/v/M3r2XDceM6A&fs=1\"
type=\"application/x-shockwave-flash\" width=\"425\" height=\"344\"
allowscriptaccess=\"always\" allowfullscreen=\"true\"></embed>
</object>",
以下是声明遵守该格式的内容提供商列表：
"provider_name": "23HQ",
"provider_name": "Adways",
"provider_name": "Alpha App Net",
"provider_name": "amCharts Live Editor",
"provider_name": "Animatron",
"provider_name": "Animoto",
"provider_name": "Audiomack",
"provider_name": "Audiosnaps",
"provider_name": "Blackfire.io",
"provider_name": "Box Office Buz",
"provider_name": "Buttondown",
"provider_name": "Cacoo",
"provider_name": "Carbon Health",
"provider_name": "CatBoat",
"provider_name": "ChartBlocks",
"provider_name": "chirbit.com",
"provider_name": "CircuitLab",
"provider_name": "Clipland",
"provider_name": "Clyp",
"provider_name": "Codepen",
"provider_name": "Codepoints",
"provider_name": "CodeSandbox",
"provider_name": "CollegeHumor",
"provider_name": "Commaful",
"provider_name": "Coub",
"provider_name": "Crowd Ranking",
"provider_name": "Cyrano Systems",
"provider_name": "Daily Mile",
"provider_name": "Dailymotion",
"provider_name": "Deviantart.com",
"provider_name": "Didacte",
"provider_name": "Dipity",
"provider_name": "DocDroid",
"provider_name": "Docs",
"provider_name": "Dotsub",
"provider_name": "edocr",
"provider_name": "eduMedia",
"provider_name": "EgliseInfo",
"provider_name": "Embed Articles",
"provider_name": "Embedly",
"provider_name": "Ethfiddle",
"provider_name": "Eyrie",
"provider_name": "Facebook (Video)",
"provider_name": "Flat",
"provider_name": "Flickr",
"provider_name": "FOX SPORTS Australia",
"provider_name": "FrameBuzz",
"provider_name": "FunnyOrDie",
"provider_name": "Geograph Britain and Ireland",
"provider_name": "Geograph Channel Islands",
"provider_name": "Geograph Germany",
"provider_name": "Getty Images",
"provider_name": "Gfycat",
"provider_name": "GIPHY",
"provider_name": "Gyazo",
"provider_name": "HuffDuffer",
"provider_name": "Hulu",
"provider_name": "iFixit",
"provider_name": "IFTTT",
"provider_name": "Indaco",
"provider_name": "Infogram",
"provider_name": "Inoreader",
"provider_name": "inphood",
"provider_name": "Instagram",
"provider_name": "iSnare Articles",
"provider_name": "ivlismusic",
"provider_name": "Kickstarter",
"provider_name": "Kidoju",
"provider_name": "Kit",
"provider_name": "Kitchenbowl",
"provider_name": "Knacki",
"provider_name": "LearningApps.org",
"provider_name": "Ludus",
"provider_name": "MathEmbed",
"provider_name": "me.me",
"provider_name": "Meetup",
"provider_name": "MixCloud",
"provider_name": "Moby Picture",
"provider_name": "Modelo",
"provider_name": "myBeweeg",
"provider_name": "nanoo.tv",
"provider_name": "nfb.ca",
"provider_name": "Odds.com.au",
"provider_name": "Office Mix",
"provider_name": "Official FM",
"provider_name": "On Aol",
"provider_name": "Ora TV",
"provider_name": "Orbitvu",
"provider_name": "Oumy",
"provider_name": "Pastery",
"provider_name": "Pixdor",
"provider_name": "Poll Daddy",
"provider_name": "Port",
"provider_name": "Portfolium",
"provider_name": "Punters",
"provider_name": "Quiz.biz",
"provider_name": "Quizz.biz",
"provider_name": "RapidEngage",
"provider_name": "Reddit",
"provider_name": "ReleaseWire",
"provider_name": "RepubHub",
"provider_name": "ReverbNation",
"provider_name": "Roomshare",
"provider_name": "Rumble",
"provider_name": "Sapo Videos",
"provider_name": "Screen9",
"provider_name": "Screencast.com",
"provider_name": "Screenr",
"provider_name": "ScribbleMaps",
"provider_name": "Scribd",
"provider_name": "ShortNote",
"provider_name": "Shoudio",
"provider_name": "Show the Way, actionable location info",
"provider_name": "Silk",
"provider_name": "Simplecast",
"provider_name": "Sizzle",
"provider_name": "Sketchfab",
"provider_name": "SlideShare",
"provider_name": "SmugMug",
"provider_name": "SocialExplorer",
"provider_name": "Songlink",
"provider_name": "SoundCloud",
"provider_name": "Soundsgood",
"provider_name": "SpeakerDeck",
"provider_name": "Spotful",
"provider_name": "Spreaker",
"provider_name": "Streamable",
"provider_name": "StreamOneCloud",
"provider_name": "Sutori",
"provider_name": "Sway",
"provider_name": "Ted",
"provider_name": "The New York Times",
"provider_name": "They Said So",
"provider_name": "TickCounter",
"provider_name": "Toornament",
"provider_name": "Topy",
"provider_name": "Twitch",
"provider_name": "Twitter",
"provider_name": "Ubideo",
"provider_name": "UOL",
"provider_name": "Ustream",
"provider_name": "Utposts",
"provider_name": "Uttles",
"provider_name": "VeeR VR",
"provider_name": "Verse",
"provider_name": "VEVO",
"provider_name": "VideoJug",
"provider_name": "Vidlit",
"provider_name": "Vimeo",
"provider_name": "Vlipsy",
"provider_name": "wecandeo",
"provider_name": "Wiredrive",
"provider_name": "wizer.me",
"provider_name": "Wootled",
"provider_name": "WordPress.com",
"provider_name": "Yes, I Know IT!",
"provider_name": "YFrog",
"provider_name": "YouTube",
"provider_name": "ZProvider",
请注意，这并不意味着在此网站上启用了 CORS。
这些数据主要用于服务器端解析。
大部分信息也可以通过解析给定页面的<meta og> open graph html 属性来获得。
请参阅http://ogp.me/ 以获取有关打开图形的信息。
【讨论】：
这是一个很好的答案，它不需要 api 密钥，也不依赖第三方服务。【参考方案4】：是的，您无需任何 API 即可，只需 Requests 和 re 模块
Python 中的代码：
import requests,re
video_url = "https://www.youtube.com/watch?v=2i2khp_npdE"
response = requests.get(video_url).text
title = re.findall(r'"title":"[^>]*",',response)[0].split(',')[0][9:-1]
print("\n[+] Video Title: ".format(title))
输出：
[+] 视频标题：Alan Walker - 让我入睡
【讨论】：
【参考方案5】：是的，有可能。
我对@987654321@做了一些修改，并在Python上写了这个sn-p：
import urllib, urllib.request, json
input = "C:\\urls.txt"
output = "C:\\tracks.csv"
urls=[line.strip() for line in open(input)]
for url in urls:
ID = url.split('=')
VideoID = ID[1]
params = "format": "json", "url": "https://www.youtube.com/watch?v=%s" % VideoID
url = "https://www.youtube.com/oembed"
query_string = urllib.parse.urlencode(params)
url = url + "?" + query_string
with urllib.request.urlopen(url) as response:
response_text = response.read()
try:
data = json.loads(response_text.decode())
except ValueError as e:
continue # skip faulty url
if data is not None:
author = data['author_name'].split(' - ')
author = author[0].rstrip()
f = open(output, "a", encoding='utf-8')
print(author, ',', data['title'], sep="", file=f)
它会选择一个包含 Youtube URL 列表的文本文件：
https://www.youtube.com/watch?v=F_Vfgdfgg
https://www.youtube.com/watch?v=RndfgdfN8
...
并返回一个包含艺术家-标题对的 CSV 文件：
Beyonce,Pretty hurts
Justin Timberlake,Cry me a river
附： sn-p 中的文件路径格式适用于 Windows，对于 Linux，只需使用 ~/tracks.csv
【讨论】：
抱歉，@Suncatcher，但如果某些标题包含逗号怎么办？ 刚刚尝试使用逗号标题，一切正常。在编写 CSV 时不应该有问题，在解析生成的 CSV 时也不应该有问题，您可以将标题括在引号中，例如print(author, ",'", data['title'], "'", "sep="", file=f) 或应用您想要的任何规则以上是关于带有 API v3 的 Youtube 视频标题没有 API 密钥？的主要内容，如果未能解决你的问题，请参考以下文章
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