Discord notification for on publish in Umbraco

DiscordNotification.cs

using Newtonsoft.Json;
using System;
using System.Net;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Text;
using Umbraco.Cms.Core.Events;
using Umbraco.Cms.Core.Notifications;

namespace UmbracoHackathon.Notifications
{
    public class DiscordNotification : INotificationHandler<ContentPublishingNotification>
    {
        public void Handle(ContentPublishingNotification notification)
        {
            HttpClient client = new HttpClient();
            foreach (var contentItem in notification.PublishedEntities)
            {
                var discordMessage = new DiscordMessage(){
                    Content=contentItem.Name + " published",
                    Username = "UmbracoBot"
                };

                var content = new StringContent(JsonConvert.SerializeObject(discordMessage), Encoding.UTF8, "application/json");
                client.PostAsync("YOUR_WEBHOOK_URL", content);
            }
        }

        public class DiscordMessage 
        {
            [JsonProperty("content")]
            public string Content { get; set; } = "";
            [JsonProperty("username")]
            public string Username { get; set; } = "";

        }
    }
}