Node.js - dnsPromises.resolve6() Method

The dnsPromises.resolve6() method uses the DNS protocol to resolve the IPv6 addresses (AAAA records) for the hostname. The promise is resolved with an array of IPv6 addresses.

Syntax

dns.resolve6(hostname, [options])

Parameters

• hostname – This parameter takes input for hostname to be resolved.

• options – It can have the following options −

  • ttl – It defines the Time-To-Live (TTL) for each record.

Example 1

Create a file with the name "resolve6.js" and copy the following code snippet. After creating the file, use the command "node resolve6.js" to run this code as shown in the example below −

// dns.resolve6() Demo Example

// Importing the dns module
const dns = require('dns');

const dnsPromises = dns.promises;

// Passing a single dns to get values
dnsPromises.resolve6('tutorialspoint.com').then((response) => {
   console.log("Resolved address is:", response);
})

Output

C:\home
ode>> node resolve6.js
Resolved address is: undefined

Example 2

// dns.resolve6() Demo Example

// Importing the dns module
const dns = require('dns');

const dnsPromises = dns.promises;

// Setting ttl as true
const options={
   ttl:true,
};

// Calling dnsPromises.resolve6() method
// asynchronously
(async function() {

   const records = await dnsPromises.resolve6('google.com', options);

   // Printing records
   console.log(records);
})();

Output

C:\home
ode>> node resolve6.js
[ { address: '2404:6800:4002:81d::200e', ttl: 30 } ]