Repository: yt-dlp/yt-dlp
File: yt_dlp/extractor/tiktok.py (Python)

Code before:
            'view_count': int,
            'like_count': int,
            'repost_count': int,
            'comment_count': int,
            'thumbnail': r're:https?://.+\.jpe?g',
        },
    }]
    _APP_VERSIONS = [('23.3.0', '230300')]
    _APP_NAME = 'aweme'
    _AID = 1128
    _API_HOSTNAME = 'aweme.snssdk.com'
    _UPLOADER_URL_FORMAT = 'https://www.douyin.com/user/%s'
    _WEBPAGE_HOST = 'https://www.douyin.com/'

    def _real_extract(self, url):
        video_id = self._match_id(url)

        webpage = self._download_webpage("https://www.douyin.com/aweme/v1/web/aweme/detail/?aweme_id=" + video_id,
                                         video_id)
        render_data = self._parse_json(webpage, video_id, fatal=False)
        if not render_data:
            # TODO: Run verification challenge code to generate signature cookies
            cookies = self._get_cookies(self._WEBPAGE_HOST)
            expected = not cookies.get('s_v_web_id') or not cookies.get('ttwid')
            raise ExtractorError(
                'Fresh cookies (not necessarily logged in) are needed', expected=expected)

        return self._parse_aweme_video_web(traverse_obj(render_data, 'aweme_detail'), url, video_id)


class TikTokVMIE(InfoExtractor):
    _VALID_URL = r'https?://(?:(?:vm|vt)\.tiktok\.com|(?:www\.)tiktok\.com/t)/(?P<id>\w+)'
    IE_NAME = 'vm.tiktok'

    _TESTS = [{
        'url': 'https://www.tiktok.com/t/ZTRC5xgJp',
        'info_dict': {
            'id': '7170520270497680683',
            'ext': 'mp4',
            'title': 'md5:c64f6152330c2efe98093ccc8597871c',
            'uploader_id': '6687535061741700102',
            'upload_date': '20221127',
            'view_count': int,
            'like_count': int,
            'comment_count': int,
            'uploader_url': 'https://www.tiktok.com/@MS4wLjABAAAAObqu3WCTXxmw2xwZ3iLEHnEecEIw7ks6rxWqOqOhaPja9BI7gqUQnjw8_5FSoDXX',
            'album': 'Wave of Mutilation: Best of Pixies',
            'thumbnail': r're:https://.+\.webp.*',
            'duration': 5,
            'timestamp': 1669516858,
            'repost_count': int,

Review comment (refactor):
```suggestion
        if not detail:
            # TODO: Run verification challenge code to generate signature cookies
            raise ExtractorError(
                'Fresh cookies (not necessarily logged in) are needed',
                expected=not self._get_cookies(self._WEBPAGE_HOST).get('s_v_web_id'))
```

Code after:
    def _real_extract(self, url):
        video_id = self._match_id(url)

        detail = traverse_obj(self._download_json(
            'https://www.douyin.com/aweme/v1/web/aweme/detail/', video_id,
            'Downloading web detail JSON', 'Failed to download web detail JSON',
            query={'aweme_id': video_id}, fatal=False), ('aweme_detail', {dict}))
        if not detail:
            # TODO: Run verification challenge code to generate signature cookies
            raise ExtractorError(
                'Fresh cookies (not necessarily logged in) are needed',
                expected=not self._get_cookies(self._WEBPAGE_HOST).get('s_v_web_id'))

        return self._parse_aweme_video_app(detail)


class TikTokVMIE(InfoExtractor):
    _VALID_URL = r'https?://(?:(?:vm|vt)\.tiktok\.com|(?:www\.)tiktok\.com/t)/(?P<id>\w+)'
    IE_NAME = 'vm.tiktok'

    _TESTS = [{
        'url': 'https://www.tiktok.com/t/ZTRC5xgJp',
        'info_dict': {
            'id': '7170520270497680683',
            'ext': 'mp4',
            'title': 'md5:c64f6152330c2efe98093ccc8597871c',
            'uploader_id': '6687535061741700102',
            'upload_date': '20221127',
            'view_count': int,
            'like_count': int,
            'comment_count': int,
            'uploader_url': 'https://www.tiktok.com/@MS4wLjABAAAAObqu3WCTXxmw2xwZ3iLEHnEecEIw7ks6rxWqOqOhaPja9BI7gqUQnjw8_5FSoDXX',
            'album': 'Wave of Mutilation: Best of Pixies',
            'thumbnail': r're:https://.+\.webp.*',
            'duration': 5,
            'timestamp': 1669516858,
            'repost_count': int,
            'artist': 'Pixies',
            'track': 'Where Is My Mind?',
            'description': 'md5:c64f6152330c2efe98093ccc8597871c',
            'uploader': 'sigmachaddeus',
            'creator': 'SigmaChad',
        },
    }, {
        'url': 'https://vm.tiktok.com/ZTR45GpSF/',
        'info_dict': {
            'id': '7106798200794926362',
            'ext': 'mp4',
            'title': 'md5:edc3e7ea587847f8537468f2fe51d074',
            'uploader_id': '6997695878846268418',
            'upload_date': '20220608',