twitch_live_url.py

import requests
import json
import re
import argparse
import random
import m3u8

USHER_API = 'http://usher.twitch.tv/api/channel/hls/{channel}.m3u8?player=twitchweb' +\
    '&token={token}&sig={sig}&$allow_audio_only=true&allow_source=true' + \
    '&type=any&p={random}'
TOKEN_API = 'http://api.twitch.tv/api/channels/{channel}/access_token'

def get_token_and_signature(channel):
    url = TOKEN_API.format(channel=channel)
    r = requests.get(url)
    txt = r.text
    data = json.loads(txt)
    sig = data['sig']
    token = data['token']
    return token, sig

def get_live_stream(channel):
    token, sig = get_token_and_signature(channel)
    r = random.randint(0,1E7)
    url = USHER_API.format(channel=channel, sig=sig, token=token, random=r)
    r = requests.get(url)
    m3u8_obj = m3u8.loads(r.text)
    return m3u8_obj

def print_video_urls(m3u8_obj):
    print("Video URLs (sorted by quality):") 
    for p in m3u8_obj.playlists:
        si = p.stream_info
        bandwidth = si.bandwidth/(1024)
        quality = p.media[0].name
        resolution = si.resolution if si.resolution else "?"
        uri = p.uri
        #print(p.stream_info, p.media, p.uri[1])
        txt = "\n{} kbit/s ({}), resolution={}".format(bandwidth, quality, resolution)
        print(txt)
        print(len(txt)*"-")
        print(uri)

if __name__=="__main__":
    parser = argparse.ArgumentParser('get video url of twitch channel')
    parser.add_argument('channel_name')
    args = parser.parse_args()
    m3u8_obj = get_live_stream(args.channel_name)
    print_video_urls(m3u8_obj)

You have a typo at $allow_audio_only=true

Doesn't work for me. URL's list is empty
Update: working, my bad

This script stopped working.
As far as I understand, twitch now requires oauth_token to get the access_token, this worked for me:
TOKEN_API = 'https://api.twitch.tv/api/channels/{channel}/access_token?oauth_token={oauth_token}'

Ofcourse an oauth_token must be generated and assigned.
You can see my revision for a quick fix.

@GalPressman Thanks a lot for your fix. I didn't find a proper way to generate the oauth but from those 3rd party alike websites, generated one for IRC, but useful in this case.

@deng113jie You can read about it in the following link:
https://github.com/justintv/Twitch-API/blob/master/authentication.md#implicit-grant

According to some digging in their dev forums, it's possible that a client-id could be used instead of oauth_token, which is better since client-id is not secret and can be published inside the script. But this needs to be double checked.

https://api.twitch.tv/api/channels/[Channelname]/access_token?client_id=XXX [genereated on Connection-Site of twitch User Settings] works perfectly

Seems like twitch wants to keep track of applications using the api

So just to clarify things. Replace line 11 with:

TOKEN_API = 'http://api.twitch.tv/api/channels/{channel}/access_token?client_id=$CLIENT_ID'

Replace $CLIENT_ID with a client ID you get when you log into your twitch account, then settings -> connections and you have to register an application at the bottom. Then you get a client-id.

i got this error

Traceback (most recent call last):
File "/home/pi/etc/init.d/test.py", line 48, in
m3u8_obj = get_live_stream(args.channel_name)
File "/home/pi/etc/init.d/test.py", line 23, in get_live_stream
token, sig = get_token_and_signature(channel)
File "/home/pi/etc/init.d/test.py", line 18, in get_token_and_signature
sig = data['sig']
KeyError: 'sig'

Client key is inserted. Don´t know how to fix it

found my error. hashtag at the Beginning of the token was the failure

For any person who comes here in the future, I forked a fixed version of this script here:

https://gist.github.com/Josephvb10/a7ae56e6f9a9b4033b541c1b5c4458be

Don't forget to insert your client_id on line 11

I added the links yesterday and they have expired. How can i prevent this?

Would be nice if you could add a shebang to the top:

#!/usr/bin/python

However, (line numbers w/o shebang):

$ python twitch_live_url.py gronkh
Traceback (most recent call last):
  File "twitch_live_url.py", line 48, in <module>
    m3u8_obj = get_live_stream(args.channel_name)
  File "twitch_live_url.py", line 23, in get_live_stream
    token, sig = get_token_and_signature(channel)
  File "twitch_live_url.py", line 18, in get_token_and_signature
    sig = data['sig']
KeyError: 'sig'