#
dmgr = DownloadMgr(request)
try:
	x = await dmgr.download(params_kw.url)
	return UiMessage(title='download', message=f'download submited')
except Exception as e:
	exception(f'{params_kw.url} download failed,{e=}\n{format_exc()}')
	return UiError(title='download error', message=f'{params_kw.url} download failed,{e=}')