我正在尝试使用Cloud Functions for Firebase触发通知 . 我可以将它告诉控制台日志，说明消息已被触发，但实际上无法使通知在浏览器中工作 . 任何人都可以看到一个缺陷吗？
const functions = require('firebase-functions');
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
exports.newMessageAlert = functions.database.ref('/messages/{message}').onWrite((event) => {
const message = event.data.val();
const getTokens = admin.database().ref('users').once('value').then((snapshot) => {
const tokens = [];
snapshot.forEach((user) => {
const token = user.child('token').val();
if (token) tokens.push(token);
});
return tokens;
});
const getAuthor = admin.auth().getUser(message.uid);
Promise.all([getTokens, getAuthor]).then(([tokens, author]) => {
const payload = {
notification: {
title: `Hot Take from ${author.displayName}`,
body: message.content,
icon: author.photoURL
}
};
admin.messaging().sendToDevice(tokens, payload).then((resp) =>{
console.log("IT WORKED", resp);
});
});
});