public async Task <OneOf <Success, Exception> > WriteAsync(StorageFile file, CancellationToken cancellationToken = default)
{
var path = GetPath(file.Name);
var data = MessagePackSerializer.Serialize(new FileContainer
{
Data = await file.Stream.ToArrayAsync(cancellationToken),
MediaType = file.MediaType
}, _serializerOptions);
try
{
using (var temp = new TemporaryFile())
{
// write to temporary file first
await using (var stream = temp.OpenAsync())
{
await stream.WriteAsync(data, cancellationToken);
await stream.FlushAsync(cancellationToken);
}
// move temp file to storage
await MoveFileAsync(temp.Path, path, cancellationToken);
}
_logger.LogInformation($"Wrote file '{file.Name}'.");
return(new Success());
}
catch (Exception e)
{
_logger.LogWarning(e, $"Failed to write file '{file.Name}'.");
return(e);
}
}