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send push notification from C# using FCM

        public bool SendPushNotification(string deviceId, string message)
        {
     //applicationID = "AIzaSyxxxxxxxxxxxxxxxxxxx"
    // senderId = "98xxxxxxxxx"
            bool isSent = false;
            string str = "";
            try
            {

                WebRequest tRequest = WebRequest.Create("https://fcm.googleapis.com/fcm/send");
                tRequest.Method = "post";
                tRequest.ContentType = "application/json";
                var data = new
                {
                    to = deviceId,
                    notification = new
                    {
                        body = message,
                        title = "SpAlert",
                        sound = "Enabled"

                    }
                };
                var serializer = new JavaScriptSerializer();
                var json = serializer.Serialize(data);
                Byte[] byteArray = Encoding.UTF8.GetBytes(json);
                tRequest.Headers.Add(string.Format("Authorization: key={0}", utilityHelper.PushNotificationAppId));
                tRequest.Headers.Add(string.Format("Sender: id={0}", utilityHelper.PushNotificationSenderID));
                tRequest.ContentLength = byteArray.Length;
                using (Stream dataStream = tRequest.GetRequestStream())
                {
                    dataStream.Write(byteArray, 0, byteArray.Length);
                    using (WebResponse tResponse = tRequest.GetResponse())
                    {
                        using (Stream dataStreamResponse = tResponse.GetResponseStream())
                        {
                            using (StreamReader tReader = new StreamReader(dataStreamResponse))
                            {
                                String sResponseFromServer = tReader.ReadToEnd();
                                str = sResponseFromServer;
                                Console.WriteLine(sResponseFromServer);
                                isSent = true;
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
                str = ex.Message;
            }
            return isSent;
        }

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