Node.js 我需要在firebase数据库中添加某些内容后发送推送通知我如何才能做到这一点
我做这件事是参考上面的博客 以下代码用于在firebase中创建数据库:Node.js 我需要在firebase数据库中添加某些内容后发送推送通知我如何才能做到这一点,node.js,firebase,firebase-realtime-database,Node.js,Firebase,Firebase Realtime Database,我做这件事是参考上面的博客 以下代码用于在firebase中创建数据库: public static void sendNotificationToUser(String user, final String message) { DatabaseReference ref; ref = FirebaseDatabase.getInstance().getReference(); final DatabaseReference notificati
public static void sendNotificationToUser(String user, final String message) {
DatabaseReference ref;
ref = FirebaseDatabase.getInstance().getReference();
final DatabaseReference notifications = ref.child("notificationRequests");
Map notification = new HashMap<>();
notification.put("username", user);
notification.put("message", message);
notifications.push().setValue(notification);
}
当我尝试部署它时,会出现如下错误:
分析触发器时出错:找不到模块“请求”
您是否安装了请求模块
您能告诉我如何提供服务帐户的路径吗?json您可以从Firebase网站上的项目设置下载此文件。例如,将此文件放在私人文件夹中,路径将为private/serviceAccountKey.jsoni给出的我的路径如下C:/Users/user/CSApplication/functions/private/google-services.json现在在解析函数触发器时出现了类似此错误的给出错误。对不起,我接受了你的答案。它在函数文件夹中,我用户如u所说,但它给了我一个错误:错误发生在解析函数触发器时。我建议你用上一期重新设置你的问题,并创建一个新问题,我想这篇文章的作者Frank van Puffelen会回答你的。嘿!在我解决第一个问题后,您无法更新您的问题!
var firebase = require('firebase-admin');
var request = require('request');
var API_KEY = ".AAAA6J9B3gg:APA91bEw_oHJSrAFuRxB6k6TzJ6wU-yzEw64yaf7CwBq7ur2iroGqi7Cf5JZ127wW_sBFtfdtBkpz15pPTVdQtkGPoMf6uBTMgq5AdTwXVWUDhtxQiGx5Pkj2CIpPDi0xTNT_ZMiEmIG";
var serviceAccount = require("path/to/serviceAccountKey.json");
firebase.initializeApp({
credential: firebase.credential.cert(serviceAccount),
databaseURL: "https://chitchatapp-73060.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();
}
});
}
listenForNotificationRequests();
npm install request