Lua Requires Chilkat v11.0.0+

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. Lua

local chilkat = require("chilkat")

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

local integrationKey = "DIMS3V5QDVG9J9ABRXC4"
local secretKey = "HWVQ46nubLBxhnRlKddTltWIi3hL0fIQF2qTvLab"

local http = chilkat.Http.new()

http.accept = "application/json"

-- Use your own hostname here:
local url = "https://api-a03782e1.duosecurity.com/auth/v2/preauth"

http.login = integrationKey
http.password = secretKey

local req = chilkat.HttpRequest.new()
req:add_param("username", "matt")

req.http_verb = "POST"
req.content_type = "application/x-www-form-urlencoded"

local resp = chilkat.HttpResponse.new()
local success = http:http_req(url, req, resp)
if not success then
    print(http.last_error_text)
    return
end

print("status code = " .. resp.status_code)

local json = chilkat.JsonObject.new()
success = json:load(resp.body_str)
json.emit_compact = false
print(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

local device = ""
local display_name = ""
local name = ""
local number = ""
local v_type = ""
local j = 0
local count_j = 0
local strVal = ""

local responseResult = json:string_of("response.result")
local responseStatus_msg = json:string_of("response.status_msg")
local stat = json:string_of("stat")
local i = 0
local count_i = json:size_of_array("response.devices")
while i < count_i do
    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_of_array("response.devices[i].capabilities")
    while j < count_j do
        json.j = j
        strVal = json:string_of("response.devices[i].capabilities[j]")
        j = j + 1
    end

    i = i + 1
end