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  1. using System;
  2. using System.Net.Http;
  3. using System.Threading;
  4. using System.Threading.Tasks;
  5.  
  6. class Program
  7. {
  8.     static async Task Main(string[] args)
  9.     {
  10.         Console.Write("Enter target URL (must be your own server): ");
  11.         string url = Console.ReadLine();
  12.  
  13.         Console.Write("Number of requests to send: ");
  14.         if (!int.TryParse(Console.ReadLine(), out int requestCount) || requestCount <= 0)
  15.         {
  16.             Console.WriteLine("Invalid number of requests.");
  17.             return;
  18.         }
  19.  
  20.         using HttpClient client = new HttpClient();
  21.         int success = 0, fail = 0;
  22.  
  23.         // Limit concurrency to avoid overwhelming your own system
  24.         SemaphoreSlim throttler = new SemaphoreSlim(10);
  25.  
  26.         Task[] tasks = new Task[requestCount];
  27.         for (int i = 0; i < requestCount; i++)
  28.         {
  29.              // Stagger each request by 20ms
  30.     await Task.Delay(20);
  31.  
  32.             await throttler.WaitAsync();
  33.             tasks[i] = Task.Run(async () =>
  34.             {
  35.                 try
  36.                 {
  37.                     HttpResponseMessage response = await client.GetAsync(url);
  38.                     if (response.IsSuccessStatusCode)
  39.                         Interlocked.Increment(ref success);
  40.                     else
  41.                         Interlocked.Increment(ref fail);
  42.                 }
  43.                 catch
  44.                 {
  45.                     Interlocked.Increment(ref fail);
  46.                 }
  47.                 finally
  48.                 {
  49.                     throttler.Release();
  50.                 }
  51.             });
  52.         }
  53.  
  54.         await Task.WhenAll(tasks);
  55.  
  56.         Console.WriteLine($"Completed. Success: {success}, Failed: {fail}");
  57.     }
  58. }
  59.  
Success #stdin #stdout 0.05s 29532KB
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Standard input is empty
stdout
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Enter target URL (must be your own server): Number of requests to send: Invalid number of requests.
https://ideone.com/9sWPyR
language:
C# (NET 6.0)
created:
12 days ago
visibility:
public

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