(PowerShell) Duo Auth API - Async Auth

See more Duo Auth MFA Examples

If you enable async, then your application will be able to retrieve real-time status updates from the authentication process, rather than receiving no information until the process is complete.

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

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

Chilkat .NET Downloads Chilkat .NET Assemblies

Add-Type -Path "C:\chilkat\ChilkatDotNet47-9.5.0-x64\ChilkatDotNet47.dll"

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

$integrationKey = "DIMS3V5QDVG9J9ABRXC4"
$secretKey = "HWVQ46nubLBxhnRlKddTltWIi3hL0fIQF2qTvLab"

$http = New-Object Chilkat.Http

$http.Accept = "application/json"

# Use your own hostname here:
$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

$req = New-Object 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")
# Add the async param to get an immediate response, then periodically check for updates to find out when the MFA authentication completes for fails.
$req.AddParam("async","1")

$resp = $http.PostUrlEncoded($url,$req)
if ($http.LastMethodSuccess -eq $false) {
    $($http.LastErrorText)
    exit
}

$("status code = " + $resp.StatusCode)

$json = New-Object Chilkat.JsonObject
$success = $json.Load($resp.BodyStr)
$json.EmitCompact = $false
$($json.Emit())

if ($resp.StatusCode -ne 200) {

    exit
}

# Sample successful output:

# status code = 200

# {
#   "stat": "OK",
#   "response": {
#     "txid": "45f7c92b-f45f-4862-8545-e0f58e78075a"
#   }
# }

$txid = $json.StringOf("response.txid")

# Use your own hostname here:
$sbUrl = New-Object Chilkat.StringBuilder
$sbUrl.Append("https://api-a03782e1.duosecurity.com/auth/v2/auth_status?txid=")
$sbUrl.Append($txid)

$("Auth status URL: " + $sbUrl.GetAsString())

$sbResult = New-Object Chilkat.StringBuilder

# Wait for a response...
$i = 0
$maxWaitIterations = 100
while ($i -lt $maxWaitIterations) {
    # Wait 3 seconds.
    $http.SleepMs(3000)

    $("Polling...")

    $resp = $http.QuickRequest("GET",$sbUrl.GetAsString())
    if ($http.LastMethodSuccess -eq $false) {
        $($http.LastErrorText)
        exit
    }

    if ($resp.StatusCode -ne 200) {
        $("error status code = " + $resp.StatusCode)
        $($resp.BodyStr)
        $("Failed.")

        exit
    }

    # Sample response:

    # 	{
    # 	  "stat": "OK",
    # 	  "response": {
    # 	    "result": "waiting",
    # 	    "status": "pushed",
    # 	    "status_msg": "Pushed a login request to your phone..."
    # 	  }
    # 	}

    $json.Load($resp.BodyStr)

    # The responseResult can be "allow", "deny", or "waiting"
    $sbResult.Clear()
    $json.StringOfSb("response.result",$sbResult)
    $responseStatus = $json.StringOf("response.status")
    $responseStatus_msg = $json.StringOf("response.status_msg")

    $($sbResult.GetAsString())
    $($responseStatus)
    $($responseStatus_msg)
    $("")

    if ($sbResult.ContentsEqual("waiting",$true) -eq $true) {
        $i = $i + 1
    }
    else {
        # Force loop exit..
        $i = $maxWaitIterations
    }

}

$("Finished.")