(Objective-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.

Note: This example requires Chilkat v9.5.0.89 or greater.

For more information, see https://duo.com/docs/authapi#/auth

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#import <NSString.h>
#import <CkoHttp.h>
#import <CkoHttpRequest.h>
#import <CkoHttpResponse.h>
#import <CkoJsonObject.h>

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

NSString *integrationKey = @"DIMS3V5QDVG9J9ABRXC4";
NSString *secretKey = @"HWVQ46nubLBxhnRlKddTltWIi3hL0fIQF2qTvLab";

CkoHttp *http = [[CkoHttp alloc] init];

http.Accept = @"application/json";

// Use your own hostname here:
NSString *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;

CkoHttpRequest *req = [[CkoHttpRequest alloc] init];
[req AddParam: @"username" value: @"matt"];
[req AddParam: @"factor" value: @"push"];
// The device ID can be obtained from the preauth response.  See Duo Preauth Example
[req AddParam: @"device" value: @"DP6GYVTQ5NK82BMR851F"];

CkoHttpResponse *resp = [http PostUrlEncoded: url req: req];
if (http.LastMethodSuccess == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

NSLog(@"%@%d",@"status code = ",[resp.StatusCode intValue]);

CkoJsonObject *json = [[CkoJsonObject alloc] init];
BOOL success = [json Load: resp.BodyStr];
json.EmitCompact = NO;
NSLog(@"%@",[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

NSString *responseResult = [json StringOf: @"response.result"];
NSString *responseStatus = [json StringOf: @"response.status"];
NSString *responseStatus_msg = [json StringOf: @"response.status_msg"];
NSString *stat = [json StringOf: @"stat"];