async function addItemsToPlaylist(sPlaylistID, aItems) {
const _playlistID = sPlaylistID?.includes(':') ? sPlaylistID.split(':')[2] : sPlaylistID;
const sTracks = `?uris=${aItems?.tracks?.map(t => t.uri).join(',')}`;
const uri = `https://api.spotify.com/v1/playlists/${_playlistID}/tracks${sTracks}`;
return await hitAPI(uri, 'POST');
}