getCoverArtUrl function Null safety
Implementation
Future<String> getCoverArtUrl(String mangaID, {int? res}) async {
var reso = res ?? '';
var data = await getCoverArt(mangaID);
var filename = data!.data[0].attributes.fileName;
if (reso == 256 || reso == 512) {
return 'https://uploads.mangadex.org/covers/$mangaID/$filename.$reso.jpg';
} else {
return 'https://uploads.mangadex.org/covers/$mangaID/$filename';
}
}