How to send HTTPS Post Request with C#
Jan 31, 2012 Janaki Mahapatra, API
Please follow the below steps to send https post request.
- Create new C# website application.
- Open the default code behind file i.e. Default.aspx.cs
- add the following two namespace using System.Security.Cryptography.X509Certificates; using System.Net;
For the https request we have to create a CertificatePolicy subclass which is
public class MyPolicy : ICertificatePolicy
{
public bool CheckValidationResult(ServicePoint srvPoint,
X509Certificate certificate, WebRequest request,
int certificateProblem)
{
//Return True to force the certificate to be accepted.
return true;
}
}
Now go to the page load event and paste the following code.
protected void Page_Load(object sender, EventArgs e)
{
System.Net.ServicePointManager.CertificatePolicy = new MyPolicy();
// this is CertificatePolicy subclass
try
{
string url = "https://myirl.com";
HttpWebRequest req=(HttpWebRequest)WebRequest.Create(url);
req.KeepAlive=false;
req.ProtocolVersion = HttpVersion.Version10;
req.Method = "POST";
req.ContentType = "application/x-www-form-urlencoded";
byte[] postBytes = Encoding.ASCII.GetBytes("username=sample_post_data");
req.ContentType = "application/x-www-form-urlencoded";
req.ContentLength = postBytes.Length;
Stream requestStream = req.GetRequestStream();
requestStream.Write(postBytes, 0, postBytes.Length);
requestStream.Close();
HttpWebResponse response = (HttpWebResponse)req.GetResponse();
Stream resStream = response.GetResponseStream();
var sr = new StreamReader(response.GetResponseStream());
string responseText = sr.ReadToEnd();
Response.Write(responseText);
}
catch (Exception ee)
{
//through your exception here
}
}
If you want to convert the response test to xml, then
- add the xml namespace as using System.Xml;
- then add the following code below the responseText as
XmlDocument doc = new XmlDocument(); doc.LoadXml(responseText);