POST stream data in REST API-WCf

Question

User-792764019 posted

Hi,

        I am working on a wcf rest api. I got issue to upload images from Client side to API. From Client side I do POST method to pass Streaming, and In Service, trying to fetch data through Message, StreamReader and some other ways also tried.

I checked in debugging mode, stream has length of 15000 in Client Side, and when I recieve it in service, it is more than 15000, it is 21000.

I am not getting any idea why some extra values are added in Stream.

Please some one give idea to solve this issue.

Thanks

VD

Answer 1

User-1662538993 posted

Check this article-

http://code.msdn.microsoft.com/windowsdesktop/Upload-files-using-a-REST-13f16af2

Check this in your config file-

maxStringContentLength and maxBytesPerRead

and make it to maximum for the testing purpost.

Answer 2

User-792764019 posted

Finally I got the solution.

WCF REST API...

public DealerImage PostImage(Stream sm)
         {
           System.Drawing.Bitmap imag = new System.Drawing.Bitmap(sm);
           byte[] imagedata = ImageToByte(imag);
            //Save byte code to database..
          
        }

       public static byte[] ImageToByte(System.Drawing.Image img)
        {
           
            ImageConverter converter = new ImageConverter();
            return (byte[])converter.ConvertTo(img, typeof(byte[]));
        }

Client Code to POST image.......

 public void PostData()
    {
        try
        {
             byte[] fileToSend = null;
        string name = "";
        
        if (FileUpload1.HasFile)
        {
            name = FileUpload1.FileName;
            Stream stream = FileUpload1.FileContent;
            stream.Seek(0, SeekOrigin.Begin);
            fileToSend = new byte[stream.Length];
            int count = 0;
            while (count < stream.Length)
            {
                fileToSend[count++] = Convert.ToByte(stream.ReadByte());
            }
            
        }

        HttpWebRequest req = (HttpWebRequest)HttpWebRequest.Create("URL here");
      
        req.Method = "POST";
        req.ContentType = "application/octet-stream";
        req.ContentLength = fileToSend.Length;
        Stream reqStream = req.GetRequestStream();
        reqStream.Write(fileToSend, 0, fileToSend.Length);
        reqStream.Close();

        HttpWebResponse resp = (HttpWebResponse)req.GetResponse();

        StreamReader reader = new StreamReader(resp.GetResponseStream());

        string result = reader.ReadToEnd();
        }
        catch (Exception ex)
        {
            
            throw ex;
        }
    }