C#

Duo Auth API - Auth

See more Duo Auth MFA Examples

The /auth endpoint performs second-factor authentication for a user by sending a push notification to the user's smartphone app, verifying a passcode, or placing a phone call. It is also used to send the user a new batch of passcodes via SMS. C#

bool success = false;

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

string integrationKey = "DIMS3V5QDVG9J9ABRXC4";
string secretKey = "HWVQ46nubLBxhnRlKddTltWIi3hL0fIQF2qTvLab";

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

http.Accept = "application/json";

// Use your own hostname here:
string url = "https://api-a03782e1.duosecurity.com/auth/v2/auth";

// This example requires Chilkat v9.5.0.89 or greater because Chilkat will automatically
// generate and send the HMAC signature for the requires based on the integration key and secret key.
http.Login = integrationKey;
http.Password = secretKey;

Chilkat.HttpRequest req = new Chilkat.HttpRequest();
req.AddParam("username","matt");
req.AddParam("factor","push");
// The device ID can be obtained from the preauth response.  See Duo Preauth Example
req.AddParam("device","DP6GYVTQ5NK82BMR851F");

req.HttpVerb = "POST";
req.ContentType = "application/x-www-form-urlencoded";

Chilkat.HttpResponse resp = new Chilkat.HttpResponse();
success = http.HttpReq(url,req,resp);
if (success == false) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

Debug.WriteLine("status code = " + Convert.ToString(resp.StatusCode));

Chilkat.JsonObject json = new Chilkat.JsonObject();
success = json.Load(resp.BodyStr);
json.EmitCompact = false;
Debug.WriteLine(json.Emit());

// Sample successful output:

// status code = 200

// {
//   "response": {
//     "result": "allow",
//     "status": "allow",
//     "status_msg": "Success. Logging you in..."
//   },
//   "stat": "OK"
// }

// Sample code to parse the above JSON response..

// Use this online tool to generate parsing code from sample JSON: 
// Generate Parsing Code from JSON

string responseResult = json.StringOf("response.result");
string responseStatus = json.StringOf("response.status");
string responseStatus_msg = json.StringOf("response.status_msg");
string stat = json.StringOf("stat");