我想将通知发送到使用Node.Js代码中的Ionic t开发的Android应用。我尝试过以下代码并获取Exactly one of topic, token or condition is required.
如何在没有任何条件的情况下向所有用户发送通知?
var serviceAccount = require("/path/to/config.json");
admin.initializeApp({
credential: admin.credential.cert(serviceAccount),
databaseURL: "https://myApp.firebaseio.com"
});
var message = {
notification: {
title: '$GOOG up 1.43% on the day',
body: '$GOOG gained 11.80 points to close at 835.67, up 1.43% on the day.'
}
};
admin.messaging().send(message).then(res=>{
console.log("Success",res)
}).catch(err=>{
console.log("Error:",err)
})
答案 0 :(得分:3)
如果您想向所有用户发送通知,那么最好是将用户注册到某个主题,例如food
,然后注册到该主题的每个人都会收到通知。
在上面的代码中,您收到该错误,因为您没有向谁发送通知。
如果令牌:
var registrationToken = 'YOUR_REGISTRATION_TOKEN'; <-- token of user
var message = {
notification: {
title: '$GOOG up 1.43% on the day',
body: '$GOOG gained 11.80 points to close at 835.67, up 1.43% on the day.'
}
token: registrationToken
};
如果主题:
var topic = 'food';
var message = {
notification: {
title: '$GOOG up 1.43% on the day',
body: '$GOOG gained 11.80 points to close at 835.67, up 1.43% on the day.'
}
topic: topic
};
更多信息:
https://firebase.google.com/docs/cloud-messaging/admin/send-messages