【问题标题】:Firebase Cloud Messaging with Node.js server使用 Node.js 服务器的 Firebase 云消息传递
【发布时间】:2023-03-25 18:05:01
【问题描述】:

我正在尝试使用 node.js 服务器和 Swift 2.2(基于 Frank van Puffelen 的 Sending notifications between Android devices with Firebase Database and Cloud Messaging)在各个设备之间使用 FCM 发送推送通知。

Firebase 数据库和 Node.js 服务器都成功处理了通知请求(向数据库添加请求、从数据库中获取数据、向主题发送通知),但我没有收到任何 警报 在我的设备上。

当我启动应用程序时,func application(application: UIApplication, didReceiveRemoteNotification) 被调用并且我能够打印通知,但是与通过 Firebase 的界面发送通知相比,很遗憾没有警报。

userInfo 来自 Node.js 通知(无警报):

[aps: {
alert =     {
title = "This should be the text";
};
}, gcm.message_id: 0:1475766502047698%d4d04c12d4d04c12]

userInfo 通过 Firebase 的界面发送通知(警报有效):

[gcm.notification.sound2: default, google.c.a.e: 1, aps: {
alert = This should be the text;
sound = default;
}, gcm.n.e: 1, google.c.a.c_id: ##Some Id###, google.c.a.udt: 0, gcm.message_id: 0:1475766412557820%d4d04c12d4d04c12, google.c.a.ts: ##Some Id 2##]

index.js:

var express = require('express');
var firebase = require("firebase");
var request = require('request');
var app = express();
var path = require("path");
var API_KEY = "Some Key"; // Your Firebase Cloud Server API key

app.set('port', (process.env.PORT || 5000));

app.use(express.static(__dirname + '/public'));

// views is directory for all template files
app.set('views', __dirname + '/views');
app.set('view engine', 'ejs');

app.get('/', function(request, response) {
response.render('pages/index')
});

app.listen(app.get('port'), function() {
console.log('Node app is running on port', app.get('port'));
});

firebase.initializeApp({
serviceAccount: path.resolve(__dirname, './credentials/someCredentials.json'),
databaseURL: "https://someURL.firebaseio.com"
});

ref = firebase.database().ref();

function listenForNotificationRequests() {
var requests = ref.child('notificationRequests');
requests.on('child_added', function(requestSnapshot) {
var request = requestSnapshot.val();
sendNotificationToUser(
request.username,
request.message,
function() {
requestSnapshot.ref.remove();
}
);
}, function(error) {
console.error(error);
});
};

function sendNotificationToUser(username, message, onSuccess) {
request({
url: 'https://fcm.googleapis.com/fcm/send',
method: 'POST',
headers: {
'Content-Type' :' application/json',
'Authorization': 'key='+API_KEY
},
body: JSON.stringify({
notification: {
title: message
},
to : '/topics/user_'+username
})
}, function(error, response, body) {
if (error) { console.error(error); }
else if (response.statusCode >= 400) {
console.error('HTTP Error: '+response.statusCode+' - '+response.statusMessage);
}
else {
onSuccess();
}
});
}

// start listening
listenForNotificationRequests();

如果有人能帮我解决这个问题,我将不胜感激 :)

【问题讨论】:

    标签: node.js swift firebase firebase-cloud-messaging firebase-notifications


    【解决方案1】:

    找到答案:我必须通过在我的 notification 对象中将 title 替换为 body 并将 priority 设置为高来更改 sendNotificationToUser 函数。

    function sendNotificationToUser(username, message, onSuccess) {
      request({
        url: 'https://fcm.googleapis.com/fcm/send',
        method: 'POST',
        headers: {
          'Content-Type' :' application/json',
          'Authorization': 'key='+API_KEY
        },
        body: JSON.stringify({
        notification: {
        body: message, // Send your message in 'body'
        sound: 'default'
        },
        to : '/topics/user_'+username,
        priority: 'high' // Set the priority to high
        })
        }, function(error, response, body) {
          if (error) { console.error(error); }
          else if (response.statusCode >= 400) {
            console.error('HTTP Error: '+response.statusCode+' - '+response.statusMessage);
          }
          else {
            onSuccess();
          }
        });
    }
    

    【讨论】:

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