Firebase Notification

FirebaseNotification.cs

public async Task<bool> SendNotificationAsync(string token, string title, string body)
    {
        using (var client = new HttpClient())
        {
            var firebaseOptionsServerId = _firebaseOptions.ServerApiKey;
            var firebaseOptionsSenderId = _firebaseOptions.SenderId;

            client.BaseAddress = new Uri("https://fcm.googleapis.com");
            client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
            client.DefaultRequestHeaders.TryAddWithoutValidation("Authorization",
                $"key={firebaseOptionsServerId}");
            client.DefaultRequestHeaders.TryAddWithoutValidation("Sender", $"id={firebaseOptionsSenderId}");


            var data = new
            {
                to = token,
                notification = new
                {
                    body = body,
                    title = title,
                },
                priority = "high"
            };

            var json = JsonConvert.SerializeObject(data);
            var httpContent = new StringContent(json, Encoding.UTF8, "application/json");

            var result = await _client.PostAsync("/fcm/send", httpContent);
            return result.StatusCode.Equals(HttpStatusCode.OK);
        }
    }