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from fastapi import FastAPI, HTTPException, Query
from fastapi.responses import RedirectResponse
import subprocess
app = FastAPI(
title="YouTube Audio Streamer",
description="Stream best audio of a YouTube video using yt-dlp.",
version="1.0.1",
docs_url="/docs",
redoc_url="/redoc"
)
@app.get("/", tags=["Health"])
async def root():
return {"status": "FastAPI working", "message": "YT-DLP backend ready"}
@app.get("/stream", tags=["Stream"])
async def stream_audio(url: str = Query(..., description="Full YouTube video URL")):
if "youtube.com/watch?v=" not in url and "youtu.be/" not in url:
raise HTTPException(status_code=400, detail="Invalid YouTube URL.")
try:
result = subprocess.run(
["yt-dlp", "-f", "bestaudio", "--get-url", url],
capture_output=True, text=True
)
audio_url = result.stdout.strip()
if not audio_url:
raise HTTPException(status_code=404, detail="No audio URL found.")
return RedirectResponse(audio_url)
except Exception as e:
raise HTTPException(status_code=500, detail=f"Error: {str(e)}") |