Post Image to Asp.Net Web API from OpenFileDialog

Question

I want to post image I select from OpenFileDialog to Web API. Then i will read url.

 

Like :

>"https://localhost:1111/api/images/1.jpg"

 

Image:

BitmapImage src = new BitmapImage();
src.BeginInit();
src.CacheOption = BitmapCacheOption.OnLoad;
src.UriSource = new Uri(path);
src.EndInit();
productImage.Source = src;

Button_Click :

private void Button_Click(object sender, RoutedEventArgs e)
{
OpenFileDialog fileDialog = new OpenFileDialog();
fileDialog.Multiselect = false;
fileDialog.Filter = "Image files (*.jpg, *.jpeg, *.jpe, *.jfif, *.png) | *.jpg; *.jpeg; *.jpe; *.jfif; *.png";

if(fileDialog.ShowDialog() == true){SendImage(new ImageDTO() { image =fileDialog.FileName });}}

SendImage():

public bool SendImage(ImageDTO dto)
{
string url = "http://localhost:52185/api/StoreImage";
var wc = new WebClient();
wc.Headers.Add("Content-Type", "application/x-www-form-urlencoded");
var parameters = new NameValueCollection(){{ "image", dto.image }};
var res = wc.UploadValues(url, "POST",parameters);
return true;}

This line throws :

var res = wc.UploadValues(url, "POST",parameters);

> System.Net.WebException: 'The remote server returned an error: (500)

> Internal Server Error.'

 

ImageDTO :

public class ImageDTO
{
public string image;
}

ImagesController.cs :

public class ImagesController :ApiController
{
[HttpPost[Route("api/StoreImage")]
public string StoreImage(ImageDTO request){
var buffer = Convert.FromBase64String(request.image);
HttpPostedFileBase objFile = (HttpPostedFileBase)new MemoryPostedFile(buffer);
//Do whatever you want with filename and its binaray data.
try{
if (objFile != null && objFile.ContentLength > 0)
{
string path = "";objFile.SaveAs(path);
//Don't Forget to save path to DB
}
}
catch(Exception ex)
{

}
return "OK";}}

It is a WPF application. I have never used Asp.Net Web API. How can i do this?