Create app.py

app.py

@@ -0,0 +1,23 @@
+from fastapi import FastAPI, HTTPException
+from fastapi.responses import RedirectResponse
+import subprocess
+
+app = FastAPI()
+
+@app.get("/")
+async def root():
+    return {"status": "FastAPI working", "message": "YT-DLP backend ready"}
+
+@app.get("/stream/{vidid}")
+async def stream_audio(vidid: str):
+    try:
+        result = subprocess.run(
+            ["yt-dlp", "-f", "bestaudio", "--get-url", f"https://www.youtube.com/watch?v={vidid}"],
+            capture_output=True, text=True
+        )
+        url = result.stdout.strip()
+        if not url:
+            raise HTTPException(status_code=404, detail="No audio URL found.")
+        return RedirectResponse(url)
+    except Exception as e:
+        raise HTTPException(status_code=500, detail=str(e))