siftlode/backend/app/youtube/rss.py

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"""Free per-channel RSS feed reader (no API quota). Returns the channel's most recent
~15 uploads as lightweight stubs for fast fresh-video detection."""
from datetime import datetime, timezone
import feedparser
import httpx
RSS_URL = "https://www.youtube.com/feeds/videos.xml?channel_id={channel_id}"
def fetch_channel_feed(channel_id: str) -> list[dict]:
url = RSS_URL.format(channel_id=channel_id)
try:
resp = httpx.get(url, timeout=20.0, headers={"User-Agent": "Subfeed/1.0"})
except httpx.HTTPError:
return []
if resp.status_code != 200:
return []
parsed = feedparser.parse(resp.content)
out: list[dict] = []
for entry in parsed.entries:
video_id = entry.get("yt_videoid")
if not video_id:
continue
published = None
if entry.get("published_parsed"):
published = datetime(*entry.published_parsed[:6], tzinfo=timezone.utc)
thumbnail = None
media = entry.get("media_thumbnail") or []
if media:
thumbnail = media[0].get("url")
out.append(
{
"id": video_id,
"channel_id": channel_id,
"title": entry.get("title"),
"published_at": published,
"thumbnail_url": thumbnail,
}
)
return out