Quickstart

Although using Youtube Scraping API is simple enough, but some tutorials are still needed. This guide will walk you through the basic usage of Youtube Scraping API.

Let’s get started with some examples, I mean a lot of examples.

Initialize

To use a library, first of all you need to import it, no doubt for that. To import Youtube Scraping API, all you need is one line of code:

python
>>> from youtube_scraping_api import YoutubeAPI

Personally speaking, the name of the library is a little bit long, but unfortunately we have no choice. When I was registering this library on PyPi, all other names like ‘youtube-api’, ‘youtube-scraper’ have all been taken by others. Maybe there are some ways to make the name shorter, let’s just hope that I figure it out as soon as possible.

Let’s get back to the point. Now how can you start using it after import? That’s a good question, but the answer is stupidly simple: call the class. Here is how you can do it:

python
>>> api = YoutubeAPI()

Here you go! Initialization completed. Now you’re all set to do whatever the heck you want with this API. But please don’t DDOS lol, I’m not sure if you’ll get arrested by FBI (just kidding) if you do so.

Video

Here come the most important part of this API - The Ultimate Video Object. With this object, you can retrieve almost all metadata of the video, parse the caption, download the video, and do whatever the heck you want with them. So here comes the basic usage of it:

python
>>> video_id = 'WzxSiEWK3cg'
>>> api.Video(video_id)
<Video id="WzxSiEWK3cg" title="PARIS | A380 LANDING 4K EXTENDED" author="High Pressure Aviation Films">

There you go! You’ve just created a video Object with contains everything about the video. Suppose you have a video object with the name video on hand right now, let’s see some examples of how we can use it:

Retrieve metadata

python
>>> video.title
"PARIS | A380 LANDING 4K EXTENDED"

>>> video.view_count
1374685

>>> video.length #in second
1025

These are just a tip of the iceberg of the metadata you can get from the video object. Check out API Reference for all the available metadata that you can retrieve from this object.

Get video captions

Check out this section.

Download video

Here comes the most interesting part of this API: Video download. For those who has used PyTube before or you’re currently using it, uninstall it right now! Use Youtube Scraping API - a much better version of pytube. Of course I’m just kidding. Currently our API still have a lot of unfinished part, since there is only one developer - myself, so the progress speed won’t be fast, but still decent. Wanna download a video, try this line of code:

python
>>> video.download()

There you go! Now you should see a progress bar being loaded on your screen. After the progress is finished, you should see your video waiting for you in your working directory. Wanna change where to save it? Or perhaps you want a custom name instead of the video title? Here are how to make it work:

python
>>> video.download(path='your/desired/path/')
>>> video.download(name='your/desired/name/without/extension/')

And maybe you want to download video with different resolutions? No problem. Here is how you can get all available resolutions:

python
>>> video.download_data
{18: {'url': 'https://...', 'signature_cipher': None, 'mime_type': 'video/mp4; codecs="avc1.42001E, mp4a.40.2"', 'bitrate': 539970, 'width': 640, 'height': 360, 'size': '69197263', 'fps': 25, 'quality': 'medium', 'quality_label': '360p', 'duration': '1025253'}

The output is a dictionary, with the key of each element being the itag of the downloadable content, and the value of it being its metadata. This output will be converted into object format soon, so you’ll be able to query it using some functions.

And now you’ve found the itag of your choice. To download it, simply put the itag as the first argument of the download function:

python
>>> itag = 251
>>> video.download(itag)

And now the video with your desired quality should start downloading pretty quickly.

Caption

Sometimes when you’re watching a video with caption, you’ll probably wonder if you can download the caption for some personal usage. So let me tell you: Yes, it’s possible, and you can download them easily with using this API. Below are some common usage examples. If you want to take a deep look at all its available usage, check out API Reference.

To fetch all captions of a video, simply do like so:

python
>>> captions = video.captions
<CaptionQuery [<Caption lang="English" code="en" is_translatable=True>, <Caption lang="French" code="fr" is_translatable=True>, <Caption lang="French (auto-generated)" code="fr" is_translatable=True>]>

To get caption of specific language, you can do like this:

python
>>> caption = captions.get_caption('en')
<Caption lang="English" code="en" is_translatable=True>

If you use get_caption without passing anything into it, it will return you the caption with default language, most likely English unless the content creator has specified another default language:

python
>>> caption = captions.get_caption()
<Caption lang="English" code="en" is_translatable=True>

And now we’ve just got our caption object here. Here are all available output format of this caption object:

XML

python
>>> caption.xml
<?xml version="1.0" encoding="utf-8" ?><transcript><text start="6.76" dur="1.86">CPT: Idle, Open Des, perfect.</text><text start="8.62" dur="0.76">Glide</text><text start="9.5" dur="0.98">FO: We can set QNH</text><text start="10.48" dur="1.6">CPT: 5000 set QNH</text><text start="14.6" dur="3.3">FO: I activate approach phase...</transcript>

Dictionary

python
>>> caption.dict
[{'start_from': 6.76, 'duration': 1.86, 'text': 'CPT: Idle, Open Des, perfect.'}, {'start_from': 8.62, 'duration': 0.76, 'text': 'Glide'}, ...]

Text

python
>>> caption.get_text()
CPT: Idle, Open Des, perfect.
Glide
FO: We can set QNH
CPT: 5000 set QNH
FO: I activate approach phase, even if it will be done automatically
....
FO: I think they don't like cold
CPT: Kilo 59

Playlist

And now let’s move on to bigger collection - Playlist. To fetch a playlist, you just need the playlist id, which is located somewhere in the youtube playlist URL, like:

python
"https://www.youtube.com/watch?v=4c2hzzZz978&list=PL7VmhWGNRxKgtwHFgDMCnutcmiafoP1c4 <-- here"
"https://www.youtube.com/playlist?list=PL7VmhWGNRxKgtwHFgDMCnutcmiafoP1c4 <-- here"

Basically you just need to copy the snippet that comes after list= in the url. After that, simply do like so:

python
>>> playlist_id = "PL7VmhWGNRxKgtwHFgDMCnutcmiafoP1c4"
>>> playlist = api.Playlist(playlist_id)
<Playlist title="Hermitcraft VII" video_count=119>

This features hasn’t quite finished yet, so I can’t talk too much about it here. Simply put, it’s just a list of video object, and you can threat is as a normal list, do stuff like for loop or something with it, and you can also get some information about the playlist like this:

python
>>> playlist.description
Season Seven of Hermitcraft! This is the official playlist for my series on the Hermitcraft 7 Server
>>> playlist.view_count
3820735

For more details on the playlist object, unfortunately there are no API reference for now. But this features will be completed as soon as I can, so stay tuned on it.

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