The sample webhook for demo

my_operator.cs

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Http;
using System;

public class WebhookData
{
    public int Id { get; set; }
    public string _fu  { get; set; }
    public string _fn  { get; set; }
    public string _ca { get; set; }
}

public static class Program
{
  public static void Main(string[] args)
  {
    WebApplicationBuilder builder = WebApplication.CreateBuilder(args);
    WebApplication app = builder.Build();


    var helloHandler = () =>  "Hello World!";

    
    var webhookHandler = async (HttpRequest request) =>  {
      // JSON is present in the request body

      // ReadFromJsonAsync converts un-structured JSON to Structured WebhookData
      var webhookData = await request.ReadFromJsonAsync<WebhookData>();

      Console.WriteLine(webhookData.Id);
      Console.WriteLine(webhookData._fu);
      Console.WriteLine(webhookData._fn);
      Console.WriteLine(webhookData._ca);


      //query the db to find the user
      //.......
      
      return Results.Ok(new { Staus = "Success" });
    };

    app.MapGet("/", helloHandler);
    app.MapPost("/webhook", webhookHandler);

    app.Run();
  }
}