public async Task <IActionResult> CreateAttachmentAsync([FromForm] CreateAttachmentRequest createAttachmentRequest)
        {
            var ms = new MemoryStream();

            await createAttachmentRequest.File.CopyToAsync(ms);

            var id = await fileStorageProvider.SaveAsync(ms, createAttachmentRequest.File.FileName, createAttachmentRequest.File.ContentType);

            return(Ok(id));
        }