Update app.py

app.py

@@ -488,8 +488,8 @@ async def multi_download(request: Request):
             }
         )
     data = await request.json()
-    video_url = data.get('quality')
-    quality = data.get('url')
+    video_url = data.get('url')
+    quality = data.get('quality')
     if quality == "mp3":
         parameter = 'type=audio'
     else: