Node.js – dnsPromises.resolveTxt() Method

The dnsPromises.resolveTxt() method uses the DNS protocol to resolve the text search (TXT records) for the hostname. The promise is resolved with a twodimensional array of the text records available for the hostname on success.

Syntax

dnsPromises.resolveTxt(hostname)

Parameters

It takes only one parameter

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

Example 1

Create a file with the name "resolveTxt.js" and copy the following code snippet. After creating the file, use the command "node resolveTxt.js" to run this code.

// dns.resolveTxt() Demo Example

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

// Passing IP to find the hostname TXT records
dnsPromises.resolveTxt('tutorialspoint.com').then((response) => {
   console.log("TXT Records: ", response);
})

Output

TXT Records: [ [ 'google-siteverification=S2zMIBQyc6WxHPiOdUzkWYvx_FKbf03xDOsI8OgG20A' ],
[ 'v=spf1 ip4:116.202.79.150 include:_spf.google.com -all' ],
[ 'google-site-verification=-RNr-P1jBNMarh7tMQEgXtlBVUi000DUphh8H7uSaQ' ] ]

Example 2

// dns.resolveTxt() Demo Example

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

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

// Calling dnsPromises.resolveTxt() method
// asynchronously
(async function() {
   const records = await dnsPromises.resolveTxt( 'google.com', options);
   // Printing records
   console.log("TXT Records: ", records);
})();

Output

TXT Records: [ [ 'MS=E4A68B9AB2BB9670BCE15412F62916164C0B20BB' ],
   [ 'apple-domain-verification=30afIBcvSuDV2PLX' ],
   ['globalsign-smime-dv=CDYX+XFHUw2wml6/Gb8+59BsH31KzUr6c1l2BPvqKX8='],
   [ 'docusign=05958488-4752-4ef2-95eb-aa7ba8a3bd0e' ],
   [ 'docusign=1b0a6754-49b1-4db5-8540-d2c12664b289' ],
   [ 'v=spf1 include:_spf.google.com ~all' ],
   [ 'google-site-verification=TV9-DBe4R80X4v0M4U_bd_J9cpOJM0nikft0jAgjmsQ' ],
   [ 'facebook-domain-verification=22rm551cu4k0ab0bxsw536tlds4h95' ],
   [ 'google-siteverification=wD8N7i1JTNTkezJ49swvWW48f8_9xveREV4oB-0Hf5o' ] ]

Mayank Agarwal

Updated on: 29-Oct-2021

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