Firebase云消息传递和C＃服务器端代码

问题描述

我在我的Android和iOS应用程序中使用FCM。客户端代码工作正常，因为从Firebase控制台我可以发送通知到两个平台没有任何问题。使用我的C＃代码，我可以成功地向Android设备发送通知，但通知不会出现在iPhone上，除非直接来自Firebase通知控制台。

C＃服务器端代码

  try 
 {
 var applicationID =application_id; 
 var senderId =sender_id; 
 string deviceId =device_id_of_reciever; 
 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 =这是消息，
 title =这是标题，
 icon =myicon
} 
}; 
 
 var serializer = new JavaScriptSerializer（）; 
 var json = serializer.Serialize（data）; 
 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（StreamReader tReader = new StreamReader（dataStreamResponse））使用（WebResponse tResponse = tRequest.GetResponse（））
 {
 using（Stream dataStreamResponse = tResponse.GetResponseStream（））$ b $ 
 {
 String sResponseFromServer = tReader.ReadToEnd（）; 
 Response.Write（sResponseFromServer）; 
 
 
 
 $ catch（Exception ex）
 
 Response.Write（ex.Message）; 
 
 $ / code> 

通知不能在我的服务器端代码的iPhone上工作，但我得到一个好来自Firebase的响应。



  {
multicast_id：479608 XXXXXX529964，
success：1， 
failure：0，
canonical_ids：0，
results：[{
message_id：0：1467935842135743％a13567c6a13567c6
} ] 
} 
  

任何帮助或建议将非常感激。

解决方案

尝试在您的FCM请求中将优先级字段设置为高。


pre $ var $ data $ new

= deviceId
通知= new
{
body =This is the message，
title =This is the title，
icon =myicon
}，
priority =high
};


请注意，在开发中使用高优先级是好的，但在生产中它应该只在用户预计会采取行动，如回复聊天消息。

I am using FCM in my Android and iOS app. The client side code is working correctly because from the Firebase console I can send notifications to both platforms with out any problem. With my C# code I can send notifications successfully to android devices but the notifications never appear on iPhone unless directly coming from the Firebase notification console. I don't know what gives.

C# server-side code

try
{
    var applicationID = "application_id";
    var senderId = "sender_id";
    string deviceId = "device_id_of_reciever";
    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 = "This is the message",
            title = "This is the title",
            icon = "myicon"
        }
    };

    var serializer = new JavaScriptSerializer();
    var json = serializer.Serialize(data);
    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);
}

Notifications are not working on iPhone with my server side code but I get a good response from Firebase.

    {
    "multicast_id": 479608 XXXXXX529964,
    "success": 1,
    "failure": 0,
    "canonical_ids": 0,
    "results": [{
        "message_id": "0:1467935842135743%a13567c6a13567c6"
    }]
}

Any help or suggestions would be really appreciated.

解决方案

Try setting the priority field to High in your FCM request.

Eg:

var data = new
{
    to = deviceId,
    notification = new
    {
        body = "This is the message",
        title = "This is the title",
        icon = "myicon"
    },
    priority = "high"
};

Note though that using high priority in development is fine but in production it should only be used when the user is expected to take action, like reply to a chat message.

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