(Swift 3,4,5...) Duo Auth API - Preauth

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

    var integrationKey: String? = "DIMS3V5QDVG9J9ABRXC4"
    var secretKey: String? = "HWVQ46nubLBxhnRlKddTltWIi3hL0fIQF2qTvLab"

    let http = CkoHttp()!

    http.accept = "application/json"

    // Use your own hostname here:
    var url: String? = "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

    let req = CkoHttpRequest()!
    req.addParam("username", value: "matt")

    var resp: CkoHttpResponse? = http.postUrlEncoded(url, req: req)
    if http.lastMethodSuccess == false {
        print("\(http.lastErrorText!)")
        return
    }

    print("status code = \(resp!.statusCode.intValue)")

    let json = CkoJsonObject()!
    var success: Bool = json.load(resp!.bodyStr)
    json.emitCompact = false
    print("\(json.emit()!)")

    resp = nil

    // 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

    var device: String?
    var display_name: String?
    var name: String?
    var number: String?
    var v_type: String?
    var j: Int
    var count_j: Int
    var strVal: String?

    var responseResult: String? = json.string(of: "response.result")
    var responseStatus_msg: String? = json.string(of: "response.status_msg")
    var stat: String? = json.string(of: "stat")
    var i: Int = 0
    var count_i: Int = json.size(ofArray: "response.devices").intValue
    while i < count_i {
        json.i = i
        device = json.string(of: "response.devices[i].device")
        display_name = json.string(of: "response.devices[i].display_name")
        name = json.string(of: "response.devices[i].name")
        number = json.string(of: "response.devices[i].number")
        v_type = json.string(of: "response.devices[i].type")
        j = 0
        count_j = json.size(ofArray: "response.devices[i].capabilities").intValue
        while j < count_j {
            json.j = j
            strVal = json.string(of: "response.devices[i].capabilities[j]")
            j = j + 1
        }

        i = i + 1
    }


}