[英]Using Node.js, how can I check whether a domain name is registered?
I'm building a simple webapp to teach myself node.js, and in it I need to check whether a certain domain name specified by the user is registered.我正在构建一个简单的webapp来自学node.js,在其中我需要检查用户指定的某个域名是否已注册。 I'm not really sure how to go about this and I'd appreciate it if anybody could enlighten me.
我不太确定如何解决这个问题,如果有人能启发我,我将不胜感激。
Take a look at this article by Matt Brubeck:看看 Matt Brubeck 的这篇文章:
http://limpet.net/mbrubeck/2010/01/13/si-unit-domains-node-js.html http://limpet.net/mbrubeck/2010/01/13/si-unit-domains-node-js.html
There is a Node.js script that does exactly that.有一个 Node.js 脚本可以做到这一点。
I think the best way to do this is to use the dns
module to do a resolve
, and if nothing is returned or an error is thrown it's not registered yet.我认为最好的方法是使用
dns
模块进行resolve
,如果没有返回任何内容或抛出错误,则说明尚未注册。
https://nodejs.org/api/dns.html https://nodejs.org/api/dns.html
Run something like this:运行如下:
//loads the Node core DNS module
var dns = require ( 'dns' )
function checkAvailable( url ) {
//uses the core modules to run an IPv4 resolver that returns 'err' on error
dns.resolve4( url, function (err, addresses) {
if (err) console.log (url + " is possibly available : " + err)
})
}
// calls the function of a given url
checkAvailable( "ohwellhaithar.com" )
I did not found the correct answer for this question.我没有找到这个问题的正确答案。 My solution is over here
我的解决方案在这里
https://www.npmjs.com/package/whois
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