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C#

Http Digest Authentication

Demonstrates the DigestAuth property to do HTTP Digest Authentication.

Chilkat C# Downloads

C#
//  This example requires the Chilkat API to have been previously unlocked.
//  See Global Unlock Sample for sample code.

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

//  To use HTTP Digest Authentication:
http.Login = "myLogin";
http.Password = "myPassword";
http.DigestAuth = true;

//  If you would like to see the HTTP session log to see how 
//  HTTP digest authentication worked.
http.SessionLogFilename = "c:/temp/qa_output/sessionLog.txt";

//  Run the test using this URL with the credentials above.  
//  (Works while httpbin.org keeps the test endpoint available.)
string jsonResponse = http.QuickGetStr("https://httpbin.org/digest-auth/auth/myLogin/myPassword");
if (http.LastMethodSuccess == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Debug.WriteLine("Response status code: " + Convert.ToString(http.LastStatus));

Debug.WriteLine(jsonResponse);

//  Output:

//  Response status code: 200
//  {
//    "authenticated": true, 
//    "user": "myLogin"
//  }

//  -----------------------------------------------
//  Here are the contents of the sessionLog.txt

//  ---- Sending Sat, 30 Aug 2025 11:23:12 GMT ----
//  GET /digest-auth/auth/myLogin/myPassword HTTP/1.1
//  Host: httpbin.org
//  Accept: */*
//  Accept-Encoding: gzip
//  
//  
//  ---- Received Sat, 30 Aug 2025 11:23:12 GMT ----
//  HTTP/1.1 401 UNAUTHORIZED
//  Date: Sat, 30 Aug 2025 11:23:12 GMT
//  Content-Type: text/html; charset=utf-8
//  Content-Length: 0
//  Connection: keep-alive
//  Server: gunicorn/19.9.0
//  WWW-Authenticate: Digest realm="me@kennethreitz.com", nonce="fbc6733e2f4d126e7a92d19918f42b0f", qop="auth", opaque="5a14177dc4089cb22c019e6df4fdaadf", algorithm=MD5, stale=FALSE
//  Set-Cookie: stale_after=never; Path=/
//  Set-Cookie: fake=fake_value; Path=/
//  Access-Control-Allow-Origin: *
//  Access-Control-Allow-Credentials: true
//  
//  
//  ---- Sending Sat, 30 Aug 2025 11:23:12 GMT ----
//  GET /digest-auth/auth/myLogin/myPassword HTTP/1.1
//  Host: httpbin.org
//  Accept: */*
//  Accept-Encoding: gzip
//  Authorization: Digest ****
//  
//  
//  ---- Received Sat, 30 Aug 2025 11:23:12 GMT ----
//  HTTP/1.1 200 OK
//  Date: Sat, 30 Aug 2025 11:23:13 GMT
//  Content-Type: application/json
//  Content-Length: 50
//  Connection: keep-alive
//  Server: gunicorn/19.9.0
//  Set-Cookie: fake=fake_value; Path=/
//  Access-Control-Allow-Origin: *
//  Access-Control-Allow-Credentials: true
//  
//  {
//    "authenticated": true, 
//    "user": "myLogin"
//  }