Asp.Net 的 FCM（Firebase 云消息传递）推送通知

Question

我已经通过以下方法使用 asp .net 将 GCM 消息推送到 google 服务器，

GCM Push Notification with Asp.Net

现在我已经计划升级到 FCM 方法，任何人对此有想法或在 asp .net 中开发它让我知道..

Answer 1

我认为您发送推送通知的方式没有任何变化。同样在 FCM 中，您将以与 GCM 相同的方式发出 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..."
}

阅读有关 FCM Server 的更多信息。

我现在能看到的唯一变化是目标 Url。期间.

Answer 2

C# 服务器端代码 Firebase 云消息

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 ，你得到的就在这里--------如下（下图）（转到您的 firebase 应用程序）

Answer 3

这是我的 VbScript 示例，适合 vb:

//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 4

 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 5

2019更新

有一个新的 .NET Admin SDK 允许您从您的服务器发送通知。通过 Nuget 安装

Install-Package FirebaseAdmin

然后您必须按照 here 给出的说明下载服务帐户密钥以获取服务帐户密钥，然后在您的项目中引用它。我已经能够通过像这样初始化客户端来发送消息

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它们发送到您喜欢的设备。

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，然后您可以添加它...

services.AddSingleton<IMobileMessagingClient, MobileMessagingClient >();

Answer 6

要命中 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) 和识别我们的 Firebase 项目安全的唯一密钥原因。

我们可以使用此方法从 .NET Core 后端发送通知：

        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);
        }
    }

这些参数是：

token: 字符串表示 Firebase 在每个 app-installation 上提供的 FCM 令牌。这将是通知将要发送的 app-installation 的列表。
title:通知加粗部分
body: 表示Firebase SDK的“Message text”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 Firebase 开发人员控制台并转到您的仪表板
单击“齿轮”图标并访问“项目设置”
前往 “云消息部分”，您将可以访问发件人 ID 和 API 键。

Answer 7

2020/11/28

从下载此文件Firebase -> 设置 -> 服务帐户 -> Firebase Admin SDK

将下载的文件移动到您的 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 文件中：YourProjectName.csproj 在您的项目根文件夹中：

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

然后将此代码添加到 Program.cs 的 Main 函数中：

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

最后一件事是推送通知的代码：

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); }

把它放在任何控制器中然后你可以调用它来发送通知...

这就是我推送通知所做的，它运行得非常好而且速度很快...

Answer 8

使用 CorePush 库

它非常轻便。我在我的所有项目中都使用它来发送 Firebase Android 和 Apple iOS 推送通知。有用的链接：

界面非常简洁：

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);

Asp.Net 的 FCM（Firebase 云消息传递）推送通知

FCM (Firebase Cloud Messaging) Push Notification with Asp.Net

asp.net

android

firebase

firebase-cloud-messaging

使用 CorePush 库