Usage in Deno
import * as mod from "node:dns/promises";
The dns.promises API provides an alternative set of asynchronous DNS methods
that return Promise objects rather than using callbacks. The API is accessible
via import { promises as dnsPromises } from 'node:dns' or import dnsPromises from 'node:dns/promises'.
Get the default value for verbatim in lookup and dnsPromises.lookup().The value could be:
Returns an array of IP address strings, formatted according to RFC 5952,that are currently configured for DNS resolution. A string will include a portsection if a custom port is used.
Resolves a host name (e.g. 'nodejs.org') into the first found A (IPv4) orAAAA (IPv6) record. All option properties are optional. If options is aninteger, then it must be 4 or 6 – if options is not provided, then IPv4and IPv6 addresses are both returned if found.
Resolves the given address and port into a host name and service usingthe operating system's underlying getnameinfo implementation.
Uses the DNS protocol to resolve a host name (e.g. 'nodejs.org') into an arrayof the resource records. When successful, the Promise is resolved with anarray of resource records. The type and structure of individual results varybased on rrtype:
Uses the DNS protocol to resolve IPv4 addresses (A records) for the hostname. On success, the Promise is resolved with an array of IPv4addresses (e.g. ['74.125.79.104', '74.125.79.105', '74.125.79.106']).
Uses the DNS protocol to resolve IPv6 addresses (AAAA records) for the hostname. On success, the Promise is resolved with an array of IPv6addresses.
Uses the DNS protocol to resolve all records (also known as ANY or * query).On success, the Promise is resolved with an array containing various types ofrecords. Each object has a property type that indicates the type of thecurrent record. And depending on the type, additional properties will bepresent on the object:
Uses the DNS protocol to resolve CAA records for the hostname. On success,the Promise is resolved with an array of objects containing availablecertification authority authorization records available for the hostname (e.g. [{critical: 0, iodef: 'mailto:pki@example.com'},{critical: 128, issue: 'pki.example.com'}]).
Uses the DNS protocol to resolve CNAME records for the hostname. On success,the Promise is resolved with an array of canonical name records available forthe hostname (e.g. ['bar.example.com']).
Uses the DNS protocol to resolve mail exchange records (MX records) for the hostname. On success, the Promise is resolved with an array of objectscontaining both a priority and exchange property (e.g.[{priority: 10, exchange: 'mx.example.com'}, ...]).
Uses the DNS protocol to resolve regular expression-based records (NAPTR records) for the hostname. On success, the Promise is resolved with an arrayof objects with the following properties:
Uses the DNS protocol to resolve name server records (NS records) for the hostname. On success, the Promise is resolved with an array of name serverrecords available for hostname (e.g.['ns1.example.com', 'ns2.example.com']).
Uses the DNS protocol to resolve pointer records (PTR records) for the hostname. On success, the Promise is resolved with an array of stringscontaining the reply records.
Uses the DNS protocol to resolve a start of authority record (SOA record) forthe hostname. On success, the Promise is resolved with an object with thefollowing properties:
Uses the DNS protocol to resolve service records (SRV records) for the hostname. On success, the Promise is resolved with an array of objects withthe following properties:
Uses the DNS protocol to resolve text queries (TXT records) for the hostname. On success, the Promise is resolved with a two-dimensional arrayof the text records available for hostname (e.g.[ ['v=spf1 ip4:0.0.0.0 ', '~all' ] ]). Each sub-array contains TXT chunks ofone record. Depending on the use case, these could be either joined together ortreated separately.
Performs a reverse DNS query that resolves an IPv4 or IPv6 address to anarray of host names.
Set the default value of order in dns.lookup() and [lookup](../.././dns/promises/~/lookup). The value could be:
Sets the IP address and port of servers to be used when performing DNSresolution. The servers argument is an array of RFC 5952 formattedaddresses. If the port is the IANA default DNS port (53) it can be omitted.