PowerBuilder Requires Chilkat v9.5.0.96+

Resolve Domain to IP Address

See more DNS Examples

Demonstrates how to perform a DNS query to obtain A records for resolving a domain name to an IPv4 address. PowerBuilder

integer li_rc
long li_Success
oleobject loo_Dns
oleobject loo_Json
string ls_Name
long li_Ttl
string ls_Ipv4
long i
long li_Count_i

li_Success = 0

loo_Dns = create oleobject
li_rc = loo_Dns.ConnectToNewObject("Chilkat.Dns")
if li_rc < 0 then
    destroy loo_Dns
    MessageBox("Error","Connecting to COM object failed")
    return
end if

loo_Json = create oleobject
li_rc = loo_Json.ConnectToNewObject("Chilkat.JsonObject")

loo_Json.EmitCompact = 0

li_Success = loo_Dns.Query("A","microsoft.com",loo_Json)
if li_Success = 0 then
    Write-Debug loo_Dns.LastErrorText
    destroy loo_Dns
    destroy loo_Json
    return
end if

Write-Debug loo_Json.Emit()

//  Sample response.
//  Parsing code below..

//  {
//    "answer": {
//      "a": [
//        {
//          "name": "microsoft.com",
//          "ttl": 1528,
//          "ipv4": "20.112.250.133"
//        },
//        {
//          "name": "microsoft.com",
//          "ttl": 1528,
//          "ipv4": "20.231.239.246"
//        },
//        {
//          "name": "microsoft.com",
//          "ttl": 1528,
//          "ipv4": "20.76.201.171"
//        },
//        {
//          "name": "microsoft.com",
//          "ttl": 1528,
//          "ipv4": "20.70.246.20"
//        },
//        {
//          "name": "microsoft.com",
//          "ttl": 1528,
//          "ipv4": "20.236.44.162"
//        }
//      ]
//    }
//  }

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

i = 0
li_Count_i = loo_Json.SizeOfArray("answer.a")
do while i < li_Count_i
    loo_Json.I = i
    ls_Name = loo_Json.StringOf("answer.a[i].name")
    li_Ttl = loo_Json.IntOf("answer.a[i].ttl")
    ls_Ipv4 = loo_Json.StringOf("answer.a[i].ipv4")
    i = i + 1
loop


destroy loo_Dns
destroy loo_Json