Node.js

DNS Query A Records

See more DNS Examples

Shows how to perform a DNS query to retrieve A records. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    var dns = new chilkat.Dns();

    var json = new chilkat.JsonObject();
    json.EmitCompact = false;

    success = dns.Query("A","microsoft.com",json);
    if (success == false) {
        console.log(dns.LastErrorText);
        return;
    }

    console.log(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

    var name;
    var ttl;
    var ipv4;

    var i = 0;
    var count_i = json.SizeOfArray("answer.a");
    while (i < count_i) {
        json.I = i;
        name = json.StringOf("answer.a[i].name");
        ttl = json.IntOf("answer.a[i].ttl");
        ipv4 = json.StringOf("answer.a[i].ipv4");
        i = i+1;
    }


}

chilkatExample();