.NET sample in C# for UploadSiteHostedPictures

/*
© 2007-2013 eBay Inc., All Rights Reserved
Licensed under CDDL 1.0 - http://opensource.org/licenses/cddl1.php
*/ 

string token = "your token here";

string SandboxURL = "https://api.sandbox.ebay.com/ws/api.dll";

string PictureURL = "your Picture URL here";

string DevID = "your DevID here";

string AppID = "your AppID here";

string CertID = "your CertID here";

string payload = "<?xml version=\"1.0\" encoding=\"utf-8\"?> " +

"<UploadSiteHostedPicturesRequest xmlns=\"urn:ebay:apis:eBLBaseComponents\">" +

"<ExternalPictureURL>" + PictureURL + "</ExternalPictureURL>" +

"<RequesterCredentials><eBayAuthToken>" + token + "</eBayAuthToken></RequesterCredentials>" +

"</UploadSiteHostedPicturesRequest>";

HttpWebRequest req = (HttpWebRequest)WebRequest.Create(SandboxURL);

HttpWebResponse resp = null;

//Add the request headers

req.Headers.Add("X-EBAY-API-COMPATIBILITY-LEVEL", "803");

req.Headers.Add("X-EBAY-API-SITEID", "0");

req.Headers.Add("X-EBAY-API-CALL-NAME", "UploadSiteHostedPictures");

req.Headers.Add("X-EBAY-API-DEV-NAME", DevID);

req.Headers.Add("X-EBAY-API-APP-NAME", AppID);

req.Headers.Add("X-EBAY-API-CERT-NAME", CertID);

//set the method to POST

req.Method = "POST";

//Convert the string to a byte array

byte[] postDataBytes = System.Text.Encoding.ASCII.GetBytes(payload);

int len = postDataBytes.Length;

req.ContentLength = len;

//Post the request to eBay

System.IO.Stream requestStream = req.GetRequestStream();

requestStream.Write(postDataBytes, 0, len);

requestStream.Close();

try

{

// get response and write to console

resp = (HttpWebResponse)req.GetResponse();

StreamReader responseReader = new StreamReader(resp.GetResponseStream(), Encoding.UTF8);

string output = responseReader.ReadToEnd();

resp.Close();

XmlDocument xmlResponse = new XmlDocument();

xmlResponse.LoadXml(output);

//string response = xmlResponse.ToString();

//process response

//show them how to get the full url and specify that in the AddItem request

}

catch (Exception ex)

{

//handle exception

}