Image upload using Webservice C#

Question

I would like a help to know what is the best way to upload an image using webservice c#, I have tried several forms and several examples but could not.

I tried to convert an image to string Base64, I was not successful. The way for communication between the webservice I used the library KSOAP2, I also tried JSON, HTTP POST... Some run but do not send photo 640 x 480.

Thanks in advance.

Answer 1

To upload a photo, you can use the Webinvoke annotation, which allows you to create WCF endpoints in REST format. Follow the code passage to the explanatory:

[WebInvoke(UriTemplate = "UploadPhoto/{fileName}/{description}", Method = "POST")] 
public void UploadPhoto(string fileName, string description, Stream fileContents) 
{ 
    byte[] buffer = new byte[32768]; 
    MemoryStream ms = new MemoryStream(); 
    int bytesRead, totalBytesRead = 0; 
    do 
    { 
        bytesRead = fileContents.Read(buffer, 0, buffer.Length); 
        totalBytesRead += bytesRead; 

        ms.Write(buffer, 0, bytesRead); 
    } while (bytesRead > 0); 

    // Save the photo on database. 
    using (DataAcess data = new DataAcess()) 
    { 
        var photo = new Photo() { Name = fileName, Description = description, Data = ms.ToArray(), DateTime = DateTime.UtcNow }; 
        data.InsertPhoto(photo); 
    } 

    ms.Close(); 
    Console.WriteLine("Uploaded file {0} with {1} bytes", fileName, totalBytesRead); 
} 

This excerpt comes from a complete example with Client and Server for image upload MSDN.

Perhaps a similar implementation with WEB API is more comfortable. See more details on WEB API on the Asp.net website.

If you implement the webservice (WCF or WEB API) using REST, it will be easier to send data regardless of the source language