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[BUG] Twitch chat downloading fails #283

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[BUG] Twitch chat downloading fails#283
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bugSomething isn't working
@uwu-crj

Description

@uwu-crj
uwu-crj
opened on Nov 11, 2025 · edited by uwu-crj

Basic information

  • Program version: 0.2.8
  • Python version: 3.12.3
  • Operating system: Ubuntu

Describe the bug

As of a few hours ago (definitely fewer than 24), chat_downloader ceased operating entirely on Twitch, for either live streams or VODs.

Command/Code used

If running from the command line, provide the following:

  1. The command used (including the verbose tag, -v):
$ chat_downloader -v https://www.twitch.tv/dashducks
  1. Output from the above command:
[DEBUG] Python version: 3.12.3 (main, Aug 14 2025, 17:47:21) [GCC 13.3.0]
[DEBUG] Program version: 0.2.8
[DEBUG] Initialisation parameters: {'headers': None, 'cookies': None, 'proxy': None}
[DEBUG] Created TwitchChatDownloader session.
[INFO] Site: twitch.tv
[DEBUG] Program parameters: {'url': 'https://www.twitch.tv/dashducks', 'start_time': None, 'end_time': None, 'max_attempts': 15, 'retry_timeout': None, 'interruptible_retry': True, 'timeout': None, 'inactivity_timeout': None, 'max_messages': None, 'message_groups': ['messages'], 'message_types': None, 'output': None, 'overwrite': True, 'sort_keys': True, 'indent': 4, 'format': 'twitch', 'format_file': None, 'chat_type': 'live', 'ignore': None, 'message_receive_timeout': 0.1, 'buffer_size': 4096}
[DEBUG] Starting new HTTPS connection (1): gql.twitch.tv:443
[DEBUG] https://gql.twitch.tv:443 "POST /gql HTTP/1.1" 200 165
[DEBUG] Session closed.
Traceback (most recent call last):
  File "/home/crj/venv-testing/bin/chat_downloader", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/home/crj/venv-testing/lib/python3.12/site-packages/chat_downloader/cli.py", line 194, in main
    run(**args.__dict__)
  File "/home/crj/venv-testing/lib/python3.12/site-packages/chat_downloader/chat_downloader.py", line 351, in run
    chat = downloader.get_chat(**chat_params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/crj/venv-testing/lib/python3.12/site-packages/chat_downloader/chat_downloader.py", line 224, in get_chat
    chat = get_chat(match, params)
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/crj/venv-testing/lib/python3.12/site-packages/chat_downloader/sites/twitch.py", line 1646, in _get_chat_by_stream_id
    return self.get_chat_by_stream_id(match.group('id'), params)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/crj/venv-testing/lib/python3.12/site-packages/chat_downloader/sites/twitch.py", line 1659, in get_chat_by_stream_id
    stream_info = self._download_gql(query)[0]['data']['user']
                  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^
KeyError: 'data'

Otherwise, if using the python module, provide the following:

I'm not including an example because the problem is reproducible via the command line, but I initially observed it via the Python API (with the same exception at the same point in the code).

Expected behavior

I expected the program to retrieve chat messages.

Screenshots

n/a

Additional context/information

I believe this is because Twitch has replaced all of their GQL persistedQuery hashes; yt-dlp and streamlink are also affected.

This means that _OPERATION_HASHES at twitch.py:842 needs updating. I would fix it myself, but I can't see how to determine the replacements.

Activity

uwu-crj
added
bugSomething isn't working
on Nov 11, 2025
babupipi

babupipi commented on Nov 11, 2025

@babupipi
babupipi
on Nov 11, 2025

twitch.py

Line 856
# 'ComscoreStreamingQuery': 'e1edae8122517d013405f237ffcc124515dc6ded82480a88daef69c83b53ac01',

Do this
'ComscoreStreamingQuery': 'e1edae8122517d013405f237ffcc124515dc6ded82480a88daef69c83b53ac01',

and

Line 1652

    query = [{
        'operationName': 'StreamMetadata',
        'variables': {'channelLogin': stream_id.lower()}
    }]

Do this

    query = [{
        'operationName': 'StreamMetadata',
        'variables': {'channelLogin': stream_id.lower()}
    },{
        'operationName': 'ComscoreStreamingQuery',
        'variables': {
            'channel': stream_id.lower(),
            'clipSlug': '',
            'isClip': False,
            'isLive': True,
            'isVodOrCollection': False,
            'vodID': '',
    }}]
gadi-playstream-gg

gadi-playstream-gg commented on Nov 11, 2025

@gadi-playstream-gg
gadi-playstream-gg
on Nov 11, 2025

having the same issue.

uwu-crj

uwu-crj commented on Nov 11, 2025

@uwu-crj
uwu-crj
on Nov 11, 2025
Author

Line 1652
[…]
Do this
[…]

Thanks — that seems to fix acquisition from a live stream, but the problem remains for a VOD.

Acting on raw intuition based on the change you suggested for get_chat_by_stream_id I tried amending get_chat_by_vod_id to say:

        query = [{
            'operationName': 'VideoMetadata',
            'variables': {
                'channelLogin': '',
                'videoID': vod_id
            }
        },{
            'operationName': 'ComscoreStreamingQuery',
            'variables': {
                'channel': '',
                'clipSlug': '',
                'isClip': False,
                'isLive': False,
                'isVodOrCollection': False,
                'vodID': vod_id,
            }
        }]

…but that didn't work ­­— when I instrumented it to print the GQL response, it read:

[
    {
        "errors": [
            {
                "message": "PersistedQueryNotFound"
            }
        ],
        "extensions": {
            "durationMilliseconds": 2,
            "operationName": "VideoMetadata",
            "requestID": "01K9S9E7XR72CQVP8SRYBJ647D"
        }
    },
    {
        "data": {},
        "extensions": {
            "durationMilliseconds": 2,
            "operationName": "ComscoreStreamingQuery",
            "requestID": "01K9S9E7XR72CQVP8SRYBJ647D"
        }
    }
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          [BUG] Twitch chat downloading fails · Issue #283 · xenova/chat-downloader