我的应用程序是一个团队管理系统,如果通过推送通知创建新事件,我想通知某个团队的所有玩家。可以创建两种类型的事件,Fixture
和 Training
。我想为他们每个人都有单独的通知。我正在尝试使用 Firebase Cloud Functions
但我一直收到同样的错误。它说事件已触发,但出现此错误。我是 JavaScript
的新手,所以如果这是一个简单的语法错误但我似乎无法让它工作,请原谅。
索引.js
//import firebase functions modules
const functions = require('firebase-functions');
//import admin module
const admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
// // Listens for new fixtures being created
exports.newFixture = functions.database.ref('/Fixture/{currentTeam}/{pushId}').onWrite((change, context) => {
console.log('new fixture event triggered');
// Grab the current value of what was written to the Realtime Database.
var valueObject = change.after.val();
// Create a notification
const payload = {
notification: {
title: "New" + valueObject.type,
body: "Details:" + " "+ valueObject.date + " " +valueObject.time + " " + "please open app and confirm availability",
sound: "default"
},
};
//Create an options object that contains the time to live for the notification and the priority
const options = {
priority: "high",
timeToLive: 60 * 60 * 24
};
return admin.messaging().sendToTopic("/topics/{currentTeam}", payload, options);
});
// Listens for new trainings being created
exports.newTraining = functions.database.ref('/Training/{currentTeam}/{pushId}').onWrite((change, context) => {
console.log('New training event triggered');
// Grab the current value of what was written to the Realtime Database.
var valueObject = change.after.val();
// Create a notification
const payload = {
notification: {
title: "New" + valueObject.type,
body: "Details:" + " "+ valueObject.date + " " + valueObject.time + " " + "please open app and confirm availability",
sound: "default"
},
};
//Create an options object that contains the time to live for the notification and the priority
const options = {
priority: "high",
timeToLive: 60 * 60 * 24
};
return admin.messaging().sendToTopic("/topics/{currentTeam}", payload, options);
});
这里是错误
Error: Topic provided to sendToTopic() must be a string which matches the format "/topics/[a-zA-Z0-9-_.~%]+".
at FirebaseMessagingError.Error (native)
at FirebaseMessagingError.FirebaseError [as constructor] (/user_code/node_modules/firebase-admin/lib/utils/error.js:39:28)
at FirebaseMessagingError.PrefixedFirebaseError [as constructor] (/user_code/node_modules/firebase-admin/lib/utils/error.js:85:28)
at new FirebaseMessagingError (/user_code/node_modules/firebase-admin/lib/utils/error.js:241:16)
at Messaging.validateTopic (/user_code/node_modules/firebase-admin/lib/messaging/messaging.js:925:19)
at /user_code/node_modules/firebase-admin/lib/messaging/messaging.js:611:19
at process._tickDomainCallback (internal/process/next_tick.js:135:7)
数据库结构
函数日志
如有任何帮助,我们将不胜感激。
最佳答案
错误信息是:
Topic provided to sendToTopic() must be a string which matches the format "/topics/[a-zA-Z0-9-_.~%]+".
您对 sendToTopic() 的调用是这样的:
sendToTopic("/topics/{currentTeam}", payload, options)
您对大括号的使用违反了错误消息中规定的规则。
如果您打算使用函数路径定义中通配符的 currentTeam
值构建主题字符串,则需要将其从事件上下文中拉出:
const currentTeam = context.params.currentTeam
sendToTopic("/topics/" + currentTeam, payload, options)
关于javascript - Firebase Cloud Functions - sendToTopic() 格式错误,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/49971032/