C# How can I parse a url to get just the domain name?-CodePudding

I want to get the domain name and only the domain name without the TLD Before: example.com After: example

I tried using the package domainname-parser but this did not work because my operation is being threaded and I get the error: The process cannot access the file 'PATH' because it is being used by another process.' Here:

var domaininfo = new DomainParser(new WebTldRuleProvider()).Parse(uri.Host);

CodePudding user response：

Hey man you could try this code:

    public static void Main(string[] args)
    {
        string urlString = "http://example.site.com/index.html";
        Console.WriteLine(GetDomainNameOfUrlString(urlString));
    }

    private static string GetDomainNameOfUrlString(string urlString)
    {
        var host = new Uri(urlString).Host;
        return host.Substring(host.LastIndexOf('.', host.LastIndexOf('.') - 1)   1);
    }

CodePudding user response：

it's easiest way to use Uri class, but it's not memory efficient.

you should use Span and implement it by yourself if you want memory efficient version.

 using System;
 
 public class HelloWorld
 {
     public static void Main(string[] args)
     {
         // you can use Uri class,
         var url = "https://www.youtube.com/watch?v=kgTeT3AIM4g";
         var uri = new Uri(url);
         Console.WriteLine(uri.Host); // www.youtube.com
     }
 }