Node.js

DNS Query TXT Records

See more DNS Examples

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

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

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("TXT","x.com",json);
    if (success == false) {
        console.log(dns.LastErrorText);
        return;
    }

    console.log(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

    var name;
    var ttl;
    var text;

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


}

chilkatExample();