How Download Spotify Cover of Item

1

hey friend i need to know how download a imagen from items … exactly i need download the spotify cover ever that the music changed and put it imagen in my visor

i try it but no working

rule "Download Spotify Cover "
when
Item Spotify_cover changed

then
val String commandImage = "wget -O /etc/openhab2/html/CoverSpoty.png " + Spotify_cover.state.toFullString

executeCommandLine(commandImage)

end