FTP Server File Upload Cdn Ef Core

Question

CDN is installed in Local FTP Server. I want to upload file to it but it gets the file path wrong. I think it is due to Handler but I couldn't find the error.

File Upload;

public static class FileUpload
  {
    public static string ImageUpload(this IFormFile file, string path)
    {
      
            FtpWebRequest request = (FtpWebRequest)FtpWebRequest.Create(@"cdnadress" + "/" + Path.GetFileName(path));

            request.Method = WebRequestMethods.Ftp.UploadFile;
            request.Credentials = new NetworkCredential("username", "password");
            request.UsePassive = true;
            request.UseBinary = true;
            request.KeepAlive = true;

            //Load the file
            FileStream stream = File.OpenRead(path);
            byte[] buffer = new byte[stream.Length];

            stream.Read(buffer, 0, buffer.Length);
            stream.Close();

            //Upload file
            Stream reqStream = request.GetRequestStream();
            reqStream.Write(buffer, 0, buffer.Length);
            reqStream.Close();

            request = null;
            return null;
 }

CreateHandler;

   public class SliderCreateHandler : IRequestHandler<SliderCreate, ApiResponse<SliderResponse>>
 {
    private readonly IUnitOfWork _repo;
    private readonly IMapper _mapper;


public SliderCreateHandler(IUnitOfWork repo, IMapper mapper)
{
    _repo = repo;
    _mapper = mapper;
}

public async Task<ApiResponse<SliderResponse>> Handle(SliderCreate request, CancellationToken cancellationToken)
{ 
    var mapped = _mapper.Map<Slider>(request);

    mapped.ImageUrl = request.file.ImageUpload(Environment.CurrentDirectory+ @"\Image\Slider\");

    if (string.IsNullOrEmpty(mapped.ImageUrl)) 
        return new ErrorApiResponse<SliderResponse>(ResultMessage.UnsupportedFileType);

    if (mapped == null)
        return new ErrorApiResponse<SliderResponse>(ResultMessage.NotCreatedSlider);

    var model = await _repo.Sliders.AddAsync(mapped);

    var response = _mapper.Map<SliderResponse>(model);

    return new SuccessApiResponse<SliderResponse>(response);
}

}

Here is the error id. I was racing on this road somewhere or I missed it. Can you help me?

Answer 1

If your goal was to upload the IFormFile then:

• Use the class API, like IFormFile.CopyTo to access the file contents. It's all in-memory data. There are no physical paths/files involved.
• Use IFormFile.FileName to find the name of the file. Some fallback name is recommendable, as the browser might not provide one.

FtpWebRequest request =
    (FtpWebRequest)FtpWebRequest.Create(@"cdnadress" + "/" + file.FileName);

// rest of your FtpWebRequest setup here

using (Stream reqStream = request.GetRequestStream())
{
    file.CopyTo(reqStream);
}