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C# Web Listener Absolute Basics

Starter for 10 getting C# .NetCore 6 to listen for a HTTP request...

You WILL need to run Visual Studio as Administrator otherwise the code can't get permission to grab the various windows code to actually run the listener.

using System.Net;
using System.Text;

HttpListener httpListener = new HttpListener();
httpListener.Prefixes.Add("http://*:8080/");

httpListener.Start();

Console.WriteLine("Started");

while (true)
{
    HttpListenerContext httpListenerContext = httpListener.GetContext();
    using (HttpListenerResponse httpListenerResponse = httpListenerContext.Response)
    {
        httpListenerResponse.Headers.Set("Content-Type", "text/plain");

        string data = "Hello World";

        byte[] buffer = Encoding.UTF8.GetBytes(data);
        httpListenerResponse.ContentLength64 = buffer.Length;

        using Stream ros = httpListenerResponse.OutputStream;
        ros.Write(buffer, 0, buffer.Length);
    }
}

 

 

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