Lua Requires Chilkat v9.5.0.96+

DNS Query TXT Records

See more DNS Examples

Shows how to perform a DNS query to retrieve TXT records. Lua

local chilkat = require("chilkat")

local dns = chilkat.Dns.new()

local json = chilkat.JsonObject.new()
json.emit_compact = false

local success = dns:query("TXT", "x.com", json)
if not success then
    print(dns.last_error_text)
    return
end

print(json:emit())

-- Sample response.
-- Parsing code below..

-- {
--   "answer": {
--     "txt": [
--       {
--         "name": "x.com",
--         "ttl": 300,
--         "text": "kkdl3qb3tcrmdhfsm803p67r0my0svs8"
--       },
--       {
--         "name": "x.com",
--         "ttl": 300,
--         "text": "v=spf1 ip4:199.16.156.128/26 ip4:199.59.150.64/26 include:_spf.google.com include:spf-008d0a01.pphosted.com -all"
--       },
--       {
--         "name": "x.com",
--         "ttl": 300,
--         "text": "google-site-verification=8yQmoVhQedzlt36RPeQP41ytrEFk9aHEnde_xm0626g"
--       },
--       {
--         "name": "x.com",
--         "ttl": 300,
--         "text": "google-site-verification=F6u9mGL--d2lbLljvH3b1UUgXtevQPdcamKr9c8914A"
--       }
--     ]
--   }
-- }

-- Use this online tool to generate parsing code from sample JSON:
-- Generate Parsing Code from JSON

local name = ""
local ttl = 0
local text = ""

local i = 0
local count_i = json:size_of_array("answer.txt")
while i < count_i do
    json.i = i
    name = json:string_of("answer.txt[i].name")
    ttl = json:int_of("answer.txt[i].ttl")
    text = json:string_of("answer.txt[i].text")
    i = i + 1
end