public async Task <Guid> CreateBookAsync(Book book, Stream image = null, string imageContentType = null)
{
if (book == null)
{
throw new ArgumentNullException(nameof(book));
}
_logger.LogInformation($"Create book {book.Id} ({book.Title})");
if (book.Id == default(Guid))
{
book.Id = Guid.NewGuid();
}
var containsImage = _imagesService.SaveImage(book, image, imageContentType);
try
{
return(await _repository.CreateBookAsync(book));
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
if (containsImage)
{
_imagesService.DeleteImage(book);
}
throw;
}
}
public static void LoadDataFromJson(IBooksRepository repository)
{
var path = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "SampleData", "books.json");
var json = File.ReadAllText(path);
var books = JsonConvert.DeserializeObject <Book[]>(json);
foreach (var item in books)
{
repository.CreateBookAsync(item);
}
}