Question

我已在以下方法中使用GCM将asp .net消息推送到谷歌服务器，

现在我已计划升级到FCM方法，任何人都对此有所了解或在asp .net开发此信息让我知道..

Answer 1

C＃服务器端代码适用于Firebase 云消息传递

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Net;
using System.Text;
using System.Web;
using System.Web.Script.Serialization;

namespace Sch_WCFApplication
{
    public class PushNotification
    {
        public PushNotification(Plobj obj)
        {
            try
            {    
                var applicationID = "AIza---------4GcVJj4dI";

                var senderId = "57-------55";

                string deviceId = "euxqdp------ioIdL87abVL";

                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 = obj.Message,

                        title = obj.TagMsg,

                        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();

                                string str = sResponseFromServer;

                            }    
                        }    
                    }    
                }    
            }        

            catch (Exception ex)
            {

                string str = ex.Message;

            }          

        }   

    }
}

APIKey和senderId，你得到的是---------如下（图片下方）（转到你的firebase应用程序）

Answer 2

 public class Notification
{
    private string serverKey = "kkkkk";
    private string senderId = "iiddddd";
    private string webAddr = "https://fcm.googleapis.com/fcm/send";

    public string SendNotification(string DeviceToken, string title ,string msg )
    {
        var result = "-1";
        var httpWebRequest = (HttpWebRequest)WebRequest.Create(webAddr);
        httpWebRequest.ContentType = "application/json";
        httpWebRequest.Headers.Add(string.Format("Authorization: key={0}", serverKey));
        httpWebRequest.Headers.Add(string.Format("Sender: id={0}", senderId));
        httpWebRequest.Method = "POST";

        var payload = new
        {
            to = DeviceToken,
            priority = "high",
            content_available = true,
            notification = new
            {
                body = msg,
                title = title
            },
        };
        var serializer = new JavaScriptSerializer();
        using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
        {
            string json = serializer.Serialize(payload);
            streamWriter.Write(json);
            streamWriter.Flush();
        }

        var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
        using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
        {
            result = streamReader.ReadToEnd();
        }
        return result;
    }
}

Answer 3

2019更新

有一个新的.NET Admin SDK，可让您从服务器发送通知。通过Nuget安装

Install-Package FirebaseAdmin

然后，您必须按照here的说明进行下载，以获取服务帐户密钥，然后在您的项目中对其进行引用。这样就可以通过初始化客户端来发送消息了

using FirebaseAdmin;
using FirebaseAdmin.Messaging;
using Google.Apis.Auth.OAuth2;
...

public class MobileMessagingClient : IMobileMessagingClient
{
    private readonly FirebaseMessaging messaging;

    public MobileMessagingClient()
    {
        var app = FirebaseApp.Create(new AppOptions() { Credential = GoogleCredential.FromFile("serviceAccountKey.json").CreateScoped("https://www.googleapis.com/auth/firebase.messaging")});           
        messaging = FirebaseMessaging.GetMessaging(app);
    }
    //...          
}

初始化应用程序后，您现在可以创建通知和数据消息并将其发送到您想要的设备。

private Message CreateNotification(string title, string notificationBody, string token)
{    
    return new Message()
    {
        Token = token,
        Notification = new Notification()
        {
            Body = notificationBody,
            Title = title
        }
    };
}

public async Task SendNotification(string token, string title, string body)
{
    var result = await messaging.SendAsync(CreateNotification(title, body, token)); 
    //do something with result
}

.....在您的服务集合中，您可以添加它...

services.AddSingleton<IMobileMessagingClient, MobileMessagingClient >();

Answer 4

以下是我更喜欢vb的VbScript示例：

//Create Json body
posturl="https://fcm.googleapis.com/fcm/send"
body=body & "{ ""notification"": {"
body=body & """title"": ""Your Title"","
body=body & """text"": ""Your Text"","
body=body & "},"
body=body & """to"" : ""target Token""}"

//Set Headers :Content Type and server key
set xmlhttp = server.Createobject("MSXML2.ServerXMLHTTP")
xmlhttp.Open "POST",posturl,false
xmlhttp.setRequestHeader "Content-Type", "application/json"
xmlhttp.setRequestHeader "Authorization", "Your Server key"

xmlhttp.send body
result= xmlhttp.responseText
//response.write result to check Firebase response
Set xmlhttp = nothing

Answer 5

2020/11/28

从 Firebase->设置->服务帐户-> Firebase Admin SDK

下载此文件

将下载的文件移至您的dotnet Core Root文件夹，然后将其名称更改为key.json例如。

然后将此代码添加到您的.csproj文件：项目根文件夹中的 YourProjectName.csproj ：

<ItemGroup> <None Update="key.json"> <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory> </None> </ItemGroup>

然后将此代码添加到 Main 函数中的 Program.cs 中：

var defaultApp = FirebaseApp.Create(new AppOptions() { Credential = GoogleCredential.FromFile(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "key.json")), });

最后是将推送通知的代码：

public async Task SendNotificationAsync(string DeviceToken, string title ,string body){ var message = new Message() { Notification = new FirebaseAdmin.Messaging.Notification { Title = title, Body = body }, Token = DeviceToken, }; var messaging = FirebaseMessaging.DefaultInstance; var result = await messaging.SendAsync(message); }

将其放在任何Controller中，然后您可以调用它以发送通知...

这就是我要推送通知的方法，它运行得非常好而且很快...

Answer 6

使用 CorePush 库

它非常轻巧。我在所有项目中使用它来发送 Firebase Android 和 Apple iOS 推送通知。有用的链接：

界面非常简单和简约：

发送 APN 消息：

var apn = new ApnSender(settings, httpClient);
await apn.SendAsync(notification, deviceToken);

发送 FCM 消息：

var fcm = new FcmSender(settings, httpClient);
await fcm.SendAsync(deviceToken, notification);

Answer 7

我不相信您发送推送通知的方式有任何变化。在FCM中，您将以与GCM相同的方式进行HTTP POST请求：

https://fcm.googleapis.com/fcm/send
Content-Type:application/json
Authorization:key=AIzaSyZ-1u...0GBYzPu7Udno5aA

{ "data": {
    "score": "5x1",
    "time": "15:10"
  },
  "to" : "bk3RNwTe3H0:CI2k_HHwgIpoDKCIZvvDMExUdFQ3P1..."
}

了解更多信息，请阅读FCM Server。

我现在唯一能看到的变化是目标网址。周期。

Answer 8

要访问Firebase API，我们需要来自Firebase的一些信息，我们需要API URL（https://fcm.googleapis.com/fcm/send）和用于出于安全原因而标识Firebase项目的唯一密钥。

我们可以使用这种方法从.NET Core后端发送通知：

// both letter
            if (a.substring(i+1) === b.substring(j+1)) {
                // start from space, all same, compare key
                condi = a.substring(0,i).localeCompare(b.substring(0,j));                
                //console.log('same', condi, a.substring(0,i), b.substring(0,j));

                return condi;
            } else {    
                condi = a.substring(i+1).localeCompare(b.substring(j+1));

                //console.log('not same', condi, a.substring(i+1), ' | ', b.substring(j+1));

                return condi;
            }

这些参数是：

令牌：字符串代表Firebase在每次安装应用时提供的FCM令牌。这将是通知将要发送的应用安装列表。
标题：这是通知的粗体部分。
正文：：表示Firebase SDK的“消息文本”字段，这是您要发送给用户的消息。

要找到您的发件人ID和API密钥，您必须：

登录到Firebase开发者控制台并转到您的仪表板
单击“齿轮”图标并访问“项目设置”
转到 “云消息传递部分”，您将可以访问发件人ID 和API密钥。

FCM（Firebase云消息传递）使用Asp.Net推送通知

8 个答案:

使用 CorePush 库