dns.resolveNaptr(hostname, callback)

版本历史

版本	变更
v18.0.0	Passing an invalid callback to the `callback` argument now throws `ERR_INVALID_ARG_TYPE` instead of `ERR_INVALID_CALLBACK`.
v0.9.12	新增于: v0.9.12

hostname <string>
callback <Function>
- err <Error>
- addresses <Object[]>

使用 DNS 协议解析基于正则表达式的记录（NAPTR 记录）以获取 hostname。传递给 callback 函数的 addresses 参数将包含一个具有以下属性的对象数组：

【Uses the DNS protocol to resolve regular expression-based records (NAPTR records) for the hostname. The addresses argument passed to the callback function will contain an array of objects with the following properties:】

flags
service
regexp
replacement
order
preference

{
  flags: 's',
  service: 'SIP+D2U',
  regexp: '',
  replacement: '_sip._udp.example.com',
  order: 30,
  preference: 100
}