Terminus Code Example 1, C#

Terminus Code Example 1

//async
// Task 1. Explain what this is doing. Walk through code
// Task 2. Explain what the loop is doing
// Task 3. Show 800 characters of the request
// Task 4. Extract and display only the page Title

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.RegularExpressions;
using System.Net.Http;
using System.Threading.Tasks;
using System.Threading;

namespace Rextester
{
    public class Program
    {
        public static void Main(string[] args)
        {
            for(int i=0; i<2; i++)
            {
                Test(); //async, passes through immediately
            }
            Console.WriteLine("FIRST"); //prints sooner than pages
            Thread.Sleep(5000); //just to get the output from Test()
        }
        
        static async void Test()
        {
            var r = await DownloadPage("http://stackoverflow.com");
            Console.WriteLine(r.Substring(0, 50));
        }
        
        static async Task<string> DownloadPage(string url)
        {
            using(var client = new HttpClient())
            {
                using(var r = await client.GetAsync(new Uri(url)))
                {
                    string result = await r.Content.ReadAsStringAsync();
                    return result;
                }
            }
        }
    }
}


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