C#

Example: Http.SetCookieXml method

Demonstrates the SetCookieXml method. C#

bool success = false;

Chilkat.Http http = new Chilkat.Http();

http.SaveCookies = true;
http.CookieDir = "c:/temp/cookie_cache";
//  For this initial request, we are not sending cookies.
//  We are starting a new (cookie) session and saving the cookies we receive.
http.SendCookies = false;

//  Do a request that establishes and saves cookies in files in the cookie directory.
string html = http.QuickGetStr("https://google.com/");

//  Examine the LastResponseHeader to see the cookies that were received:
Debug.WriteLine(http.LastResponseHeader);
Debug.WriteLine("----------------------------------");

//  We can see the following Set-Cookie response header fields:

//  Set-Cookie: AEC=AVh_V2h-fsL2-****; expires=Mon, 23-Feb-2026 19:15:10 GMT; path=/; domain=.google.com; Secure; HttpOnly; SameSite=lax
//  Set-Cookie: NID=525=XC_cL****Hn7-WONX; expires=Thu, 26-Feb-2026 19:15:10 GMT; path=/; domain=.google.com; HttpOnly

//  The following file was created:  c:/temp/cookie_cache/google_com.xml

//  Examine the cookies received in the above request.
Debug.WriteLine(http.GetCookieXml("google.com"));
Debug.WriteLine("----------------------------------");

//  Sample output.

//  <?xml version="1.0" encoding="utf-8"?>
//  <cookies>
//      <cookie key=".google.com,/,AEC" v="0" expire="Mon, 23-Feb-2026 19:05:20 GMT" secure="yes">
//          <AEC>AVh_V2gL8QzTdFGYq6_rS6ktBfqm8WNG3pzHxS2nTZD5i23dRBau2c4ZRA</AEC>
//      </cookie>
//      <cookie key=".google.com,/,NID" v="0" expire="Thu, 26-Feb-2026 19:05:20 GMT">
//          <NID>525=SuLcnaSkFqF4Jz_jLEq4kt_f3MY2Xro1VDoVzLKvp8XHcW2UHuLKJSr55iDeW0NiRIPXoAwJWF1-YNl29unX2xfhEWsS5BhbuK_2DXdD9cTOmn5BSENMhZasxeJ71mEP2PQRMXBndqnl41DhblC2jjdac_so4TESIll1B0GCVe9wRFjqI6DTZItRCj61BHmr1_RAQi0_jrh_ihn6KYtIFEY7</NID>
//      </cookie>
//  </cookies>

//  -------------------------------------------------------------------------------------------
//  Let's say we want to continue with the session at some later time with a new HTTP object.
//  One way to do it is to simply set the same cookie properties:
Chilkat.Http httpB = new Chilkat.Http();

httpB.SaveCookies = true;
httpB.CookieDir = "c:/temp/cookie_cache";
httpB.SendCookies = true;

//  The cookies from the cache are sent.
html = httpB.QuickGetStr("https://google.com/");

//  Examine the LastHeader to see the contents of the Cookie header field.
Debug.WriteLine(httpB.LastHeader);
Debug.WriteLine("----------------------------------");

//  -------------------------------------------------------------------------------------------
//  Another way to do it is to explicitly load the cookies from XML
//  and set the cookies for the particular domain.

Chilkat.Http httpC = new Chilkat.Http();

httpC.SaveCookies = true;
//  Do not save cookies to files, just keep them in memory.
httpC.CookieDir = "memory";
httpC.SendCookies = true;

Chilkat.StringBuilder sbCookiesXml = new Chilkat.StringBuilder();
success = sbCookiesXml.LoadFile("c:/temp/cookie_cache/google_com.xml","utf-8");
if (success == false) {
    Debug.WriteLine(sbCookiesXml.LastErrorText);
    return;
}

success = httpC.SetCookieXml("google.com",sbCookiesXml.GetAsString());
if (success == false) {
    Debug.WriteLine(httpC.LastErrorText);
    return;
}

html = httpC.QuickGetStr("https://google.com/");

//  Examine the LastHeader to see the contents of the Cookie header field.
Debug.WriteLine(httpC.LastHeader);