Rust

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.

Rust

let dns = chilkat::Dns::new();

let json = chilkat::JsonObject::new();
json.set_emit_compact(false);

if dns.query("TXT", "x.com", &json).is_err() {
    println!("{}", dns.last_error_text());
    return;
}

println!("{}", json.emit().unwrap_or_default());

// 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

let mut i = 0;
let count_i = json.size_of_array("answer.txt");
while i < count_i {
    json.set_i(i);
    let _ = json.string_of("answer.txt[i].name").unwrap_or_default();
    let _ = json.int_of("answer.txt[i].ttl");
    let _ = json.string_of("answer.txt[i].text").unwrap_or_default();
    i = i + 1;
}