e621 webscraper in csharp

main.cs
using System;
using System.Linq;
using System.Net.Http;
using System.Threading.Tasks;
using HtmlAgilityPack;

namespace E621WebScraper
{
    class Program
    {
        private static readonly HttpClient httpClient = new HttpClient();

        static async Task Main(string[] args)
        {
            var page = 1;
            var url = $"https://e621.net/posts?page={page}";

            var html = await httpClient.GetStringAsync(url);
            var doc = new HtmlDocument();
            doc.LoadHtml(html);

            var posts = doc.DocumentNode.Descendants("article")
                .Where(node => node.GetAttributeValue("class", "")
                    .Contains("post")).ToList();

            // Do something with the posts here ...

            Console.WriteLine($"Retrieved {posts.Count} posts on page {page}");
        }
    }
}
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