be-ytb/app.py

import logging

import cachetools
import yt_dlp
from flask import Flask, request

logging.basicConfig(format='%(asctime)s [%(levelname)s] %(filename)s:%(lineno)d %(message)s',
                    datefmt='%Y-%m-%d %H:%M:%S', level=logging.INFO)

app = Flask(__name__)


def get_key(url: str) -> str:
    return f"v2:{url}"


@cachetools.cached(cache=cachetools.TTLCache(maxsize=100000, ttl=60 * 5))
def fetch_info(url):
    logging.info(f"fetching: {url}")
    with yt_dlp.YoutubeDL({"flat-playlist": True, "extract_flat": "flat-playlist"}) as ydl:
        info = ydl.extract_info(url, download=False)
        return info


def convert_dto(info):
    thumbnails = []
    for item in info.get("thumbnails", []):
        if item.get("width"):
            thumbnails.append({
                "url": item.get("url", ""),
                "width": f"{item.get('width', 0)}",
                "height": f"{item.get('height', 0)}",
            })
    formats = []
    for item in info.get("formats", []):
        if item.get("resolution") != "audio only" and item.get("url") and item.get("acodec") and item.get(
                "acodec") != "none" and item.get("vcodec"):
            formats.append({
                "width": f"{item.get('width', 0)}",
                "height": f"{item.get('height', 0)}",
                "type": item.get("format", ""),
                "quality": f'{item.get("format_note", "")}',
                "itag": 0,
                "fps": "0",
                "bitrate": "0",
                "url": item.get("url", ""),
                "ext": item.get("ext"),
                "vcodec": item.get("vcodec", ""),
                "acodec": item.get("acodec", ""),
                "vbr": "0",
                "abr": "0",
                "container": item.get("container")
            })
    result = {
        "code": 200,
        "msg": "",
        "data": {
            "videoDetails": {
                "isLiveContent": info.get("is_live", False),
                "title": info.get("title", ""),
                "thumbnails": thumbnails,
                "description": info.get("description", ""),
                "lengthSeconds": f"{int(info.get('duration', 0) / 100)}",
                "viewCount": f"{info.get('view_count', 0)}",
                "keywords": [],
                "author": info.get("uploader", info.get("channel", "")),
                "channelID": info.get("channel_id", ""),
                "recommendInfo": [],
                "channelURL": info.get("channel_url", ""),
                "videoId": info.get("display_id", "")
            },
            "streamingData": {
                "formats": formats
            }
        },
        "id": "MusicDetailViewModel_detail_url"
    }
    return result


@app.route("/extract", methods=["GET", "POST"])
def extract():
    url: str = request.json.get("url")
    logging.info(f"url: {url}")
    info = fetch_info(url=url)
    return convert_dto(info=info)


if __name__ == '__main__':
    app.run(host='0.0.0.0', port=80, debug=True)