create a http server with a patch route in csharp

To create a HTTP server with a PATCH route in C#, you can use the HttpListener class, which is built into the .NET Framework. The HttpListener class allows you to create an HTTP server that listens for incoming HTTP requests, and then respond to them accordingly.

Here is an example code for creating a HTTP server with a PATCH route in C#:


main.cs
using System;
using System.Net;
using System.IO;

class HttpServer
{
    public static void Main(string[] args)
    {
        HttpListener listener = new HttpListener();
        listener.Prefixes.Add("http://localhost:8080/");
        listener.Start();
        Console.WriteLine("Server started - listening on http://localhost:8080/");

        while (true)
        {
            HttpListenerContext context = listener.GetContext();
            string requestMethod = context.Request.HttpMethod;
            if (requestMethod == "PATCH")
            {
                HandlePatchRequest(context);
            }
            else
            {
                HttpListenerResponse response = context.Response;
                string responseString = "Unsupported HTTP method";
                byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
                response.ContentLength64 = buffer.Length;

                Stream output = response.OutputStream;
                output.Write(buffer, 0, buffer.Length);
                output.Close();
            }
        }
    }

    public static void HandlePatchRequest(HttpListenerContext context)
    {
        HttpListenerResponse response = context.Response;
        string responseString = "HTTP PATCH request received";
        byte[] buffer = System.Text.Encoding.UTF8.GetBytes(responseString);
        response.ContentLength64 = buffer.Length;

        Stream output = response.OutputStream;
        output.Write(buffer, 0, buffer.Length);
        output.Close();
    }
}
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In this example, we create an HttpListener instance listening on http://localhost:8080/. We then continuously listen for incoming HTTP requests using a while loop. If the incoming request is a PATCH request, we call the HandlePatchRequest method, which sends a response indicating that a PATCH request was received. Otherwise, we send a response indicating that the HTTP method is unsupported.

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