使用C＃服务器将firebase云分散到多个用户(firebase cloud messging to multiple users with C# server)

 我正在尝试使用我的c＃服务器一次向多个电话发送FCM通知。 我可以使用以下代码一次向一部手机发送消息， 
 
 try
        {
            var applicationID = "xAxxxxxxxxxxxxxxxxxxxx6g9vOeEmw1njaivVfIx";
            var senderId = "x7xxxxxxxxxxx5x";
            string deviceId = pushToken;
            WebRequest tRequest = WebRequest.Create("https://fcm.googleapis.com/fcm/send");
            tRequest.Method = "post";
            tRequest.ContentType = "application/json";
            var msg2send = new
            {
                to = deviceId,
                notification = new
                {
                    body = msg,
                    title = "My Car Wash App",
                    icon = "myicon"
                },
                data = new
                {
                    priority = 10,
                    notice = msg
                }
            };

        var serializer = new JavaScriptSerializer();
        var json = serializer.Serialize(msg2send);

         Response.Write(json);

        Byte[] byteArray = Encoding.UTF8.GetBytes(json);
        tRequest.Headers.Add(string.Format("Authorization: key={0}", applicationID));
        tRequest.Headers.Add(string.Format("Sender: id={0}", senderId));
        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();
                        Response.Write(sResponseFromServer);
                    }
                }
            }
        }
    }

    catch (Exception ex)
    {
        Response.Write(ex.Message);
    }
 
 这是完美的，但我遍历我的标记，并一遍又一遍地调用该方法发出数百个请求，这并不好 
 
 我正在尝试发送多播消息，因为我可以传入一个包含所有令牌的数组，但我继续收到错误的请求 
 
var msg2send = new
            {
                registration_ids = "[id1, id2]",
                notification = new
                {
                    body = msg,
                    title = "My Car Wash App",
                    icon = "myicon"
                },
                data = new
                {
                    priority = 10,
                    notice = msg
                }
            };
 
 我很肯定，当我发送请求时，registration_ids是一个带有有效令牌的正确数组。 我不确定我做错了什么。 任何帮助或建议将非常感激。 

I am trying to send FCM notifications to multiple phones at once with my c# server. I can send messages to one phone at a time with the following code,
 
 try
        {
            var applicationID = "xAxxxxxxxxxxxxxxxxxxxx6g9vOeEmw1njaivVfIx";
            var senderId = "x7xxxxxxxxxxx5x";
            string deviceId = pushToken;
            WebRequest tRequest = WebRequest.Create("https://fcm.googleapis.com/fcm/send");
            tRequest.Method = "post";
            tRequest.ContentType = "application/json";
            var msg2send = new
            {
                to = deviceId,
                notification = new
                {
                    body = msg,
                    title = "My Car Wash App",
                    icon = "myicon"
                },
                data = new
                {
                    priority = 10,
                    notice = msg
                }
            };

        var serializer = new JavaScriptSerializer();
        var json = serializer.Serialize(msg2send);

         Response.Write(json);

        Byte[] byteArray = Encoding.UTF8.GetBytes(json);
        tRequest.Headers.Add(string.Format("Authorization: key={0}", applicationID));
        tRequest.Headers.Add(string.Format("Sender: id={0}", senderId));
        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();
                        Response.Write(sResponseFromServer);
                    }
                }
            }
        }
    }

    catch (Exception ex)
    {
        Response.Write(ex.Message);
    }
 
that works perfectly but I loop through my tokens and call that method over and over making hundreds of requests and that's not good
 
I am trying to send a multi cast message as I can just pass in an array with all the tokens but I keep on getting bad request
 
var msg2send = new
            {
                registration_ids = "[id1, id2]",
                notification = new
                {
                    body = msg,
                    title = "My Car Wash App",
                    icon = "myicon"
                },
                data = new
                {
                    priority = 10,
                    notice = msg
                }
            };
 
I am positive that registration_ids is a correct array with valid tokens when I send my request. I am not sure what I am doing wrong. Any help or suggestions would really be greatly appreciated.

原文：https://stackoverflow.com/questions/39663466