(Ruby) DNS Query SOA Records

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Shows how to perform a DNS query to retrieve SOA records.

Note: This example requires Chilkat v9.5.0.96 or later.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

dns = Chilkat::CkDns.new()

json = Chilkat::CkJsonObject.new()
json.put_EmitCompact(false)

success = dns.Query("SOA","x.com",json)
if (success == false)
    print dns.lastErrorText() + "\n";
    exit
end

print json.emit() + "\n";

# Sample response.
# Parsing code below..

# {
#   "answer": {
#     "soa": [
#       {
#         "name": "x.com",
#         "ttl": 1800,
#         "mname": "alexia.ns.cloudflare.com",
#         "rname": "dns.cloudflare.com",
#         "serial": -1971124188,
#         "refresh": 10000,
#         "retry": 2400,
#         "expire": 604800,
#         "minttl": 1800
#       }
#     ]
#   }
# }

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

i = 0
count_i = json.SizeOfArray("answer.soa")
while i < count_i
    json.put_I(i)
    name = json.stringOf("answer.soa[i].name")
    ttl = json.IntOf("answer.soa[i].ttl")
    mname = json.stringOf("answer.soa[i].mname")
    rname = json.stringOf("answer.soa[i].rname")
    serial = json.IntOf("answer.soa[i].serial")
    refresh = json.IntOf("answer.soa[i].refresh")
    retry = json.IntOf("answer.soa[i].retry")
    expire = json.IntOf("answer.soa[i].expire")
    minttl = json.IntOf("answer.soa[i].minttl")
    i = i + 1
end