我已经通过以下方法使用asp .net 将GCM 消息推送到谷歌服务器，
GCM Push Notification with Asp.Net
现在我计划升级到FCM 方法，任何人对此有想法或在asp .net 开发此方法让我知道..
【问题讨论】：
标签： android asp.net firebase firebase-cloud-messaging
2019 年更新
有一个新的.NET Admin SDK 允许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 给出的说明下载服务帐户密钥，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);
}
//...
}
初始化应用后，您现在可以创建通知和数据消息并将它们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 >();
【讨论】：
C# 服务器端代码 For 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 ，你得到的是这里---------如下（下图） （转到您的 Firebase 应用）
【讨论】：
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;
}
}
【讨论】：
要访问 Firebase API，我们需要来自 Firebase 的一些信息，出于安全原因，我们需要 API URL (https://fcm.googleapis.com/fcm/send) 和唯一的密钥来识别我们的 Firebase 项目。
我们可以使用这种方法从 .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：
要查找您的发件人 ID 和 API 密钥，您必须：
【讨论】：
这是我的 VbScript 示例，适合喜欢 vb 的人：
//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
【讨论】：
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 根文件夹，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 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，然后你就可以调用它来发送通知......
这就是我为推送通知所做的，它工作得非常好而且很快......
【讨论】：
它非常轻巧。我在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);
【讨论】：
我认为您发送推送通知的方式没有任何变化。同样在 FCM 中，您将使用与 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FCM Server了解更多信息。
我现在能看到的唯一变化是目标 URL。期间。
【讨论】：