(C#) Persist Cookies to XML Files and Auto Re-Send

Demonstrates how to persist incoming cookies to XML files and automatically re-send in subsesquent HTTP requests.

Download: Chilkat .NET Assemblies

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

bool success;

//  Any string unlocks the component for the 1st 30-days.
success = http.UnlockComponent("Anything for 30-day trial");
if (success != true) {
    textBox1.Text += http.LastErrorText + "\r\n";
    return;
}

//  To save cookies to XML files (per domain) in a specific
//  directory, set the CookieDir property (the directory must
//  already exist and be writeable by the caller).  Also,
//  set the SaveCookies property:
http.CookieDir = "/cookieDir";
http.SaveCookies = true;

//  Any methods that do a GET, POST, etc. will save cookies
//  to the CookieDir:
string html;
html = http.QuickGetStr("https://www.paypal.com/");

//  After running this code, a "paypal_com.xml" file should appear
//  in /cookieDir.

//  It's content will look something like this:

//  

<cookies>
    <cookie key=".paypal.com,/" v="0" secure="yes">
        <navcmd>_home-general</navcmd>
        <HttpOnly />
        <cwrClyrK4LoCV1fydGbAxiNL6iG>9cz...</cwrClyrK4LoCV1fydGbAxiNL6iG>
    </cookie>
</cookies>



//  To cause cached cookies to be sent with
//  subsequent HTTP requests, set the SendCookies
// property = true.
http.SendCookies = true;

//  If another HTTP request is sent, the cookies should
//  be added:
html = http.QuickGetStr("https://www.paypal.com/");

//  Check the LastHeader property to see the MIME header
//  of the last HTTP request sent.
//  The "Cookie" header field should be present.
textBox1.Text += "--- LastHeader ---" + "\r\n";
textBox1.Text += http.LastHeader + "\r\n";