(PowerShell) Duo Auth API - Preauth

See more Duo Auth MFA Examples

The /preauth endpoint determines whether a user is authorized to log in, and (if so) returns the user's available authentication factors.

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

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

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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/preauth"

# 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")

$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())

# Sample successful output:

# status code = 200

# {
#   "response": {
#     "devices": [
#       {
#         "capabilities": [
#           "auto",
#           "push",
#           "sms",
#           "mobile_otp"
#         ],
#         "device": "DP6GYVTQ5NK82BMR851F",
#         "display_name": "iOS (XXX-XXX-1871)",
#         "name": "",
#         "number": "XXX-XXX-1871",
#         "type": "phone"
#       }
#     ],
#     "result": "auth",
#     "status_msg": "Account is active"
#   },
#   "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

$responseResult = $json.StringOf("response.result")
$responseStatus_msg = $json.StringOf("response.status_msg")
$stat = $json.StringOf("stat")
$i = 0
$count_i = $json.SizeOfArray("response.devices")
while ($i -lt $count_i) {
    $json.I = $i
    $device = $json.StringOf("response.devices[i].device")
    $display_name = $json.StringOf("response.devices[i].display_name")
    $name = $json.StringOf("response.devices[i].name")
    $number = $json.StringOf("response.devices[i].number")
    $v_type = $json.StringOf("response.devices[i].type")
    $j = 0
    $count_j = $json.SizeOfArray("response.devices[i].capabilities")
    while ($j -lt $count_j) {
        $json.J = $j
        $strVal = $json.StringOf("response.devices[i].capabilities[j]")
        $j = $j + 1
    }

    $i = $i + 1
}