private async Task <IActionResult> UploadNewCategoryImageActionAsync(int id, IFormFile file)
{
var category = _unitOfWork.Repository <Categories>().GetById(id);
if (category == null)
{
return(NotFound());
}
await using (var memoryStream = new MemoryStream())
{
await file.CopyToAsync(memoryStream).ConfigureAwait(false);
category.Picture = memoryStream.ToArray();
}
_unitOfWork.Repository <Categories>().Update(category);
_unitOfWork.Context.SaveChanges();
var filePath = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
var fs = _imageHelper.CreateImageFileStream(filePath, category.Picture);
var uri = Url.Link("GetImage", new { id = category.CategoryId });
return(Created(uri, fs));
}
public void CacheImage(int id, byte[] bytes)
{
_memoryCache.Remove(id);
var tempPath = _config["TempDirectoryPath"];
var filePath = Path.Combine(string.IsNullOrWhiteSpace(tempPath) ? Path.GetTempPath() : tempPath, Path.GetRandomFileName());
_imageHelper.CreateImageFileStream(filePath, bytes);
var cacheEntryOptions = GetMemoryCacheEntryOptions();
_memoryCache.Set(id, filePath, cacheEntryOptions);
if (_memoryCache is MemoryCache cache && cache.Count > _maxTotalAmountOfCachedItems)
{
cache.Compact(0.5);
}
}
private FileStream GetImageFileStream(byte[] bytes)
{
var filePath = Path.Combine(Path.GetTempPath(), Path.GetRandomFileName());
return(_imageHelper.CreateImageFileStream(filePath, bytes));
}