nodejs set dns for request

1const { Resolver } = require('dns').promises;
2const resolver = new Resolver();
3resolver.setServers(['4.4.4.4']);
4
5// This request will use the server at 4.4.4.4, independent of global settings.
6resolver.resolve4('example.org').then((addresses) => {
7  // ...
8});
9
10// Alternatively, the same code can be written using async-await style.
11(async function() {
12  const addresses = await resolver.resolve4('example.org');
13})();