(Visual Basic 6.0) 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

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

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

Dim integrationKey As String
integrationKey = "DIMS3V5QDVG9J9ABRXC4"
Dim secretKey As String
secretKey = "HWVQ46nubLBxhnRlKddTltWIi3hL0fIQF2qTvLab"

Dim http As New ChilkatHttp

http.Accept = "application/json"

' Use your own hostname here:
Dim url As 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

Dim req As New ChilkatHttpRequest
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"

Dim resp As ChilkatHttpResponse
Set resp = http.PostUrlEncoded(url,req)
If (http.LastMethodSuccess = 0) Then
    Debug.Print http.LastErrorText
    Exit Sub
End If

Debug.Print "status code = " & resp.StatusCode

Dim json As New ChilkatJsonObject
Dim success As Long
success = json.Load(resp.BodyStr)
json.EmitCompact = 0
Debug.Print 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

Dim responseResult As String
responseResult = json.StringOf("response.result")
Dim responseStatus As String
responseStatus = json.StringOf("response.status")
Dim responseStatus_msg As String
responseStatus_msg = json.StringOf("response.status_msg")
Dim stat As String
stat = json.StringOf("stat")