FirebaseSendNotification

SendNotification.cs

using Newtonsoft.Json;
using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;

namespace Services
{
    public partial class Firebase
    {
        public static async Task<bool> SendNotification(NotificationData not)
        {
            try
            {
                // Get the server key from FCM console
                var serverKey = string.Format("key={0}", serverkey);

                // Get the sender id from FCM console
                var senderId = string.Format("id={0}", "ID");

                var data = new
                {
                    to = not.To, // Recipient device token
                    notification = new { title = not.Title, body = not.Body, sound = "default" },
                    priority = "high"
                };

                // Using Newtonsoft.Json
                var jsonBody = JsonConvert.SerializeObject(data);

                using (var httpRequest = new HttpRequestMessage(HttpMethod.Post, "https://fcm.googleapis.com/fcm/send"))
                {
                    httpRequest.Headers.TryAddWithoutValidation("Authorization", serverKey);
                    //httpRequest.Headers.TryAddWithoutValidation("Sender", senderId);
                    httpRequest.Content = new StringContent(jsonBody, Encoding.UTF8, "application/json");

                    using (var httpClient = new HttpClient())
                    {
                        var result = await httpClient.SendAsync(httpRequest);

                        if (result.IsSuccessStatusCode)
                        {
                            return true;
                        }
                        else
                        {
                            // Use result.StatusCode to handle failure
                            // Your custom error handler here
                            Console.WriteLine($"Error sending notification. Status Code: {result.StatusCode}");
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine($"Exception thrown in Notify Service: {ex}");
            }

            return false;
        }
    }
}