web-scraping - 如何首先从特定 channel 抓取新的YouTube视频？

Question

我有一个 channel ，我想从中尽快获取新上传的视频。最好的方法是什么？我知道两种选择:

使用YouTube API

直接通过URL访问 channel

使用选项1时，我需要调用api才能获取视频列表。由于存在配额，我想我将用尽我可以进行的api调用。我认为选项2是最好的选择，因为我可以根据需要多次调用该url。

首先可以通过api获得新视频吗？还是根据用户来自不同的地区，在不同时间向用户提供通过url访问的视频？我自己建立了一个网址抓取工具。我每分钟都会访问该网址。仍然有人在我有视频前8分钟播放视频。我不明白为什么会这样。

Answer 1

只是为了补充一点MadRay编写的内容，您可以使用此URL做一些简单的字符串替换

使用 channel ID:

"https://www.youtube.com/feeds/videos.xml?channel_id=UCXuqSBlHAE6Xw-yeJA0Tunw"

使用 channel 名称:

https://www.youtube.com/feeds/videos.xml?user=LinusTechTips

拥有为您解析的自由。

from bs4 import BeautifulSoup
import requests

url="https://www.youtube.com/feeds/videos.xml?user=LinusTechTips"
html = requests.get(url)
soup = BeautifulSoup(html.text, "lxml")

for entry in soup.find_all("entry"):
    for title in entry.find_all("title"):
        print(title.text)
    for link in entry.find_all("link"):
        print(link["href"])
    for name in entry.find_all("name"):
        print(name.text)
    for pub in entry.find_all("published"):
        print(pub.text)

响应:

FINALLY Wireless Headphones that Sound GREAT
https://www.youtube.com/watch?v=rei5vMQmD4Q
Linus Tech Tips
2020-01-30T20:04:37+00:00
Don't give Apple your MONEY - Mac Pro Upgrade Adventure
https://www.youtube.com/watch?v=zcLbSCinX3U
Linus Tech Tips
2020-01-29T19:59:56+00:00
We got the Kick-Proof TV from China!
https://www.youtube.com/watch?v=4eSADWuZskk
Linus Tech Tips
2020-01-28T19:46:09+00:00
Everything went wrong... Water Cooled 8K Camera Final Test
https://www.youtube.com/watch?v=OEUCNh5g-2I
Linus Tech Tips
2020-01-27T20:08:27+00:00
I'm Returning my Mac Pro
https://www.youtube.com/watch?v=mIB389tqzCI
Linus Tech Tips
2020-01-26T19:59:45+00:00
The RGB HDMI cable ISN'T as dumb as you'd think...
https://www.youtube.com/watch?v=nva6oPszm60
Linus Tech Tips
2020-01-25T20:06:23+00:00
I am NOT Retiring... yet - WAN Show Jan 24, 2020
https://www.youtube.com/watch?v=cxjhTVR_dJw
Linus Tech Tips
2020-01-25T02:29:50+00:00
The Best VR Headset... got BETTER!?
https://www.youtube.com/watch?v=AGScX_8plYw
Linus Tech Tips
2020-01-23T19:52:00+00:00
I've been thinking of retiring.
https://www.youtube.com/watch?v=hAsZCTL__lo
Linus Tech Tips
2020-01-23T06:35:25+00:00
It’s time to upgrade your GPU - RX 5600 XT
https://www.youtube.com/watch?v=rKn-vWDMkwQ
Linus Tech Tips
2020-01-22T19:59:36+00:00
WE FINALLY DID IT!! - Water Cooling the 8K Camera!
https://www.youtube.com/watch?v=imJ9QgOJHzY
Linus Tech Tips
2020-01-21T19:59:47+00:00
We Water Cooled an SSD!!
https://www.youtube.com/watch?v=lQmI5A27Iv8
Linus Tech Tips
2020-01-20T20:17:22+00:00
Should you buy a $50 CPU??
https://www.youtube.com/watch?v=JISJ_YTI9s0
Linus Tech Tips
2020-01-19T20:19:02+00:00
Apple’s Pro Display XDR – A PC Guy’s Perspective
https://www.youtube.com/watch?v=X089oYPc5Pg
Linus Tech Tips
2020-01-18T19:59:29+00:00
The NSA is Giving Out It's Hacks for Free! - WAN Show Jan 17, 2020
https://www.youtube.com/watch?v=af6FBA-n7eA
Linus Tech Tips
2020-01-18T03:00:04+00:00

但是，请记住，请在请求中使用 header ，并注意避免一次过多地访问YouTube的后端，因为您的IP会暂时停用12小时。祝你好运!