drapi.net/DrApi.cs

using HtmlAgilityPack;
using System;
using System.Linq;
using AngleSharp;

class DrApi
{

    public static async Task<List<string>> DomQueryClass(string htmlContent, string className)
    {
        var config = Configuration.Default;
        var context = BrowsingContext.New(config);
        var document = await context.OpenAsync(req => req.Content(htmlContent));

        var elements = document.QuerySelectorAll($".{className}");
        
        return elements.Select(el => el.TextContent).ToList(); //OuterHtml).ToList()
    }


    public static async Task<string> get_rants(string url)
    {

        string response = await HTTP.get(url).ConfigureAwait(false); ;
        HtmlDocument doc = new HtmlDocument();
        doc.LoadHtml(response);

        var nodes = await DomQueryClass(response, "rantlist-title-text");
        foreach (var node in nodes)
        {
            Console.WriteLine(node);
        }
        //var nodes = doc.DocumentNode.SelectNodes("//a");
        //var nodes = doc.DocumentNode.SelectNodes("//a[contains(@class,'rantlist-content-col')");
        //var nodes = doc.DocumentNode.SelectNodes("//div[contains(@class, 'rant-comment-row-widget')]");
        //foreach (var node in nodes) {
        //   Console.WriteLine(node.GetAttributeValue("class","None"));
        //    if(node.GetAttributeValue("class","None") == "rantlist-bglink"){

        //  Console.WriteLine(node.InnerText);
        //}
        //}
        return null;
    }

}