Update app.py

app.py

@@ -71,6 +71,10 @@ def download_audio_from_youtube(youtube_url, output_path='.', cookies_file='cook
         'prefer_ffmpeg': True,
     }
 
+    cookies_content = os.getenv('COOKIES_CONTENT')
+    with open('cookies.txt', 'w') as file:
+        file.write(cookies_content)
+
     if cookies_file:
         ydl_opts['cookiefile'] = cookies_file