Node.js dnsPromises.getServers() Method
The dnsPromises.getServers() method is an inbuilt application programming interface of dns module and promises object which is used to get the IP addresses of the current server.
Syntax:
dnsPromises.getServers()
Parameters: This method doesn’t accept any parameters.
Return Value: This method returns an array of IP addresses in RFC 5952 format as configured in DNS resolution for the current host. If a custom port is used then a string will be attached as a port number.
Below examples illustrate the use of dnsPromises.getServers() method in Node.js:
Example 1:
// Node.js program to demonstrate the // dnsPromises.getServers() method // Accessing promises object from dns module const { Resolver } = require('dns').promises; // Calling Resolver constructor const dnsPromises = new Resolver(); // Asynchronous function (async function() { // Address from getServers function const addresses = await dnsPromises.getServers(); // Printing addresses console.log(addresses); })(); |
Output:
[ '10.15.13.139', '8.8.8.8' ]
Example 2:
// Node.js program to demonstrate the // dnsPromises.getServers() method // Accessing promises object from dns module const { Resolver } = require('dns').promises; // Calling Resolver constructor const dnsPromises = new Resolver(); // Asynchronous function (async function() { // Address from getServers function const addresses = await dnsPromises.getServers(); // Printing each addresses addresses.forEach(element => { console.log(element); }); })(); |
Output:
72.28.94.156 2306:2470:3160::8888 72.28.94.156:1053 [2306:2470:3160::8888]:1053
Note: The above program will compile and run by using the node index.js command.
Reference: https://nodejs.org/api/dns.html#dns_dnspromises_getservers