AnyPlace.ApiClient.CustomPushpinWp8APIClient.GetTiles C# (CSharp) Метод

        public static async Task<HttpResponseMessage> GetTiles(string buid, string floor_number)
        {
            var r = new RequestPoisByFloor
            {
                access_token = "api_tester",
                buid = buid,
                floor_number = floor_number,
                username = "",
                password = ""
            };

            try
            {
                var response = await AnyPlaceClient.PostAsJsonAsync(new Uri(ServerBaseUri, "/anyplace/floortiles/zip/" + buid + "/" + floor_number), r);

                if (!response.IsSuccessStatusCode)
                {
                    return null;
                }

                var x = await response.Content.ReadAsStreamAsync();

                using (var isoStore = IsolatedStorageFile.GetUserStoreForApplication())
                {
                    using (var zipStream = new UnZipper(x))
                    {
                        isoStore.CreateDirectory(buid);
                        isoStore.CreateDirectory(buid + "/" + floor_number);

                        foreach (var file in zipStream.FileNamesInZip)
                        {
                            string fileName = Path.GetFileName(file);

                            if (!string.IsNullOrEmpty(fileName))
                            {
                                Debug.WriteLine(fileName);

                                //save file entry to storage
                                using (var streamWriter =
                                    new BinaryWriter(new IsolatedStorageFileStream(buid + "/" + floor_number + "/" + fileName,
                                                                                   FileMode.Create,
                                                                                   FileAccess.Write, FileShare.Write,
                                                                                   isoStore)))
                                {
                                    Stream fileStream = zipStream.GetFileStream(file);

                                    var buffer = new byte[2048];
                                    int size;
                                    while ((size = fileStream.Read(buffer, 0, buffer.Length)) > 0)
                                    {
                                        streamWriter.Write(buffer, 0, size);
                                    }
                                }
                            }
                        }
                    }
                }

            }
            catch (Exception e) {
                var x = e.Message;
            }
            return null;
        }
    }