public async Task <IActionResult> Upload([CanBeNull] IFormFile uploadedFile)
{
if (uploadedFile == null)
{
return(this.ErrorView(Error.Create("EmptyFile", "File is required")));
}
using (var binaryReader = new BinaryReader(uploadedFile.OpenReadStream()))
{
var viewModel = new UploadDataFileViewModel
{
Name = uploadedFile.FileName,
Content = binaryReader.ReadBytes((int)uploadedFile.Length)
};
var(dataFile, errors) = await dataFilesStore.SaveAsync(viewModel).ConfigureAwait(false);
if (errors != Error.NoError)
{
return(this.ErrorView(errors));
}
DataFileProcessor.Enqueue(dataFile.Id);
}
return(RedirectToAction("Index"));
}
public async Task <(DataFile, Error[])> SaveAsync(UploadDataFileViewModel viewModel)
{
var fileHash = hashAlgorithm.ComputeHash(viewModel.Content);
if (await applicationDbContext.DataFiles.AnyAsync(df => df.Hash == fileHash).ConfigureAwait(false))
{
return(null, Error.Create(DataFilesStoreErrors.DataFileExists));
}
var dataFile = new DataFile
{
Id = Guid.NewGuid(),
Name = viewModel.Name,
Content = viewModel.Content,
Hash = fileHash,
IsProcessed = false
};
await applicationDbContext.DataFiles.AddAsync(dataFile).ConfigureAwait(false);
await applicationDbContext.SaveChangesAsync().ConfigureAwait(false);
return(dataFile, Error.NoError);
}
