+ lessons = self._download_json(
+ 'https://egghead.io/api/v1/series/%s/lessons' % playlist_id,
+ playlist_id, 'Downloading course lessons JSON')
+
+ entries = []
+ for lesson in lessons:
+ lesson_url = lesson.get('http_url')
+ if not lesson_url or not isinstance(lesson_url, compat_str):
+ continue
+ lesson_id = lesson.get('id')
+ if lesson_id:
+ lesson_id = compat_str(lesson_id)
+ entries.append(self.url_result(
+ lesson_url, ie=EggheadLessonIE.ie_key(), video_id=lesson_id))
+
+ course = self._download_json(
+ 'https://egghead.io/api/v1/series/%s' % playlist_id,
+ playlist_id, 'Downloading course JSON', fatal=False) or {}
+
+ playlist_id = course.get('id')
+ if playlist_id:
+ playlist_id = compat_str(playlist_id)
+
+ return self.playlist_result(
+ entries, playlist_id, course.get('title'),
+ course.get('description'))
+
+
+class EggheadLessonIE(InfoExtractor):
+ IE_DESC = 'egghead.io lesson'
+ IE_NAME = 'egghead:lesson'
+ _VALID_URL = r'https://egghead\.io/(?:api/v1/)?lessons/(?P<id>[^/?#&]+)'
+ _TESTS = [{
+ 'url': 'https://egghead.io/lessons/javascript-linear-data-flow-with-container-style-types-box',
+ 'info_dict': {
+ 'id': '1196',
+ 'display_id': 'javascript-linear-data-flow-with-container-style-types-box',
+ 'ext': 'mp4',
+ 'title': 'Create linear data flow with container style types (Box)',
+ 'description': 'md5:9aa2cdb6f9878ed4c39ec09e85a8150e',
+ 'thumbnail': r're:^https?:.*\.jpg$',
+ 'timestamp': 1481296768,
+ 'upload_date': '20161209',
+ 'duration': 304,
+ 'view_count': 0,
+ 'tags': ['javascript', 'free'],
+ },
+ 'params': {
+ 'skip_download': True,
+ 'format': 'bestvideo',
+ },
+ }, {
+ 'url': 'https://egghead.io/api/v1/lessons/react-add-redux-to-a-react-application',
+ 'only_matching': True,
+ }]
+
+ def _real_extract(self, url):
+ display_id = self._match_id(url)
+
+ lesson = self._download_json(
+ 'https://egghead.io/api/v1/lessons/%s' % display_id, display_id)
+
+ lesson_id = compat_str(lesson['id'])
+ title = lesson['title']