(Lianja) Resolve Domain to IP Address

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

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

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Chilkat Lianja Extension

llSuccess = .F.

loDns = createobject("CkDns")

loJson = createobject("CkJsonObject")
loJson.EmitCompact = .F.

llSuccess = loDns.Query("A","microsoft.com",loJson)
if (llSuccess = .F.) then
    ? loDns.LastErrorText
    release loDns
    release loJson
    return
endif

? loJson.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
lnCount_i = loJson.SizeOfArray("answer.a")
do while i < lnCount_i
    loJson.I = i
    lcName = loJson.StringOf("answer.a[i].name")
    lnTtl = loJson.IntOf("answer.a[i].ttl")
    lcIpv4 = loJson.StringOf("answer.a[i].ipv4")
    i = i + 1
enddo


release loDns
release loJson