public static async Task SaveLikedArtists(LikedArtists artists)
        {
            await CreateLikedArtstsFile();

            var localpath = ApplicationData.Current.LocalFolder;
            var file      = await localpath.GetFileAsync("LikedArtists.json");

            var json = JsonConvert.SerializeObject(artists);
            await FileIO.WriteTextAsync(file, json);
        }
        public static async Task CreateLikedArtstsFile()
        {
            var localpath = ApplicationData.Current.LocalFolder;

            if (await localpath.TryGetItemAsync("LikedArtists.json") != null)
            {
                return;
            }
            var jsonModel = new LikedArtists()
            {
                Artists = new List <LikedArtist>()
            };

            var stringJson = JsonConvert.SerializeObject(jsonModel);

            var likedArtistsFile = await localpath.CreateFileAsync("LikedArtists.json");

            await FileIO.WriteTextAsync(likedArtistsFile, stringJson);
        }