gistfile1.txt

using System;
using System.Net.Http;
using System.Threading.Tasks;
using System.Timers;
using log4net;
using log4net.Config;

class Program
{
    private static readonly ILog log = LogManager.GetLogger(typeof(Program));
    private static readonly HttpClient client = new HttpClient();
    private static Timer timer;

    static void Main(string[] args)
    {
        // Configure log4net
        XmlConfigurator.Configure();

        // Set up a timer to trigger every 15 minutes
        timer = new Timer(15 * 60 * 1000);
        timer.Elapsed += OnTimedEvent;
        timer.AutoReset = true;
        timer.Enabled = true;

        Console.WriteLine("Press Enter to exit.");
        Console.ReadLine();
    }

    private static void OnTimedEvent(Object source, ElapsedEventArgs e)
    {
        CheckApiConnection().GetAwaiter().GetResult();
    }

    private static async Task CheckApiConnection()
    {
        try
        {
            // Replace with your API URL
            var response = await client.GetAsync("https://yourapi.com/api");

            if (!response.IsSuccessStatusCode)
            {
                log.Error($"API check failed with status code: {response.StatusCode}");
            }
        }
        catch (HttpRequestException ex)
        {
            // Log detailed connection failure information
            log.Error("Failed to connect to the API", ex);
        }
    }
}