云功能已成功执行，但通知未显示安卓

Question

在安卓应用程序中，我正在使用 FCM 发送通知，云功能成功执行，如 firebase 控制台日志所示，但在我的设备中它没有显示任何通知，可能是什么原因？

下面是我的索引的代码.js

let functions = require('firebase-functions');
let admin = require('firebase-admin');
admin.initializeApp(functions.config().firebase);
exports.sendNotification = functions.database.ref('/notifications/messages/{pushId}')
.onWrite(event => {
console.log('notifying start1');
const message = event.data.current.val();
const senderUid = message.from;
const receiverUid = message.to;
console.log('SenderId '+senderUid + ' Receiver Id '+receiverUid);
const promises = [];
console.log('notifying start2');
if (senderUid == receiverUid) {
//if sender is receiver, don't send notification
promises.push(event.data.current.ref.remove());
return Promise.all(promises);
}
console.log('notifying start3');
const getInstanceIdPromise = admin.database().ref(`/users/${receiverUid}/accessToken`).once('value');
console.log('notifying start4');
const getReceiverUidPromise = admin.auth().getUser(receiverUid);
console.log('notifying start5');
return Promise.all([getInstanceIdPromise, getReceiverUidPromise]).then(results => {
const accessToken = results[0].val();
const receiver = results[1];
console.log('notifying ' + receiverUid + ' about ' + message.body + ' from ' + senderUid);
const payload = {
notification: {
title: 'Firebase Notification',
body: message.body,
}
};
admin.messaging().sendToDevice(accessToken, payload)
.then(function (response) {
console.log("Successfully sent message:", response);
})
.catch(function (error) {
console.log("Error sending message:", error);
});   
});
});

请帮忙！提前谢谢。

Answer 1

有同样的问题，无法理解出了什么问题，因为没有显示错误详细信息，即 { 错误：[对象] }

Successfully sent message: { results: [ { error: [Object] } ], 
canonicalRegistrationTokenCount: 0, 
failureCount: 1, 
successCount: 0, 
multicastId: 5487635521698134000 
}

因此在云函数代码中更改/添加了日志以访问错误详细信息，即console.log(response.results[0].error);.

代码(在云中函数(：

admin.messaging().sendToDevice(registrationToken, payload)
.then(function(response) {
console.log("Successfully sent message:", response);
console.log(response.results[0].error);
})
.catch(function(error) {
console.log("Error sending message:", error);
});

错误详细信息：

{ Error: The provided registration token is not registered. A previously valid registration token can be unregistered for a variety of reasons. See the error documentation for more details. Remove this registration token and stop using it to send messages.
at FirebaseMessagingError.Error (native)
at FirebaseMessagingError.FirebaseError [as constructor] (/user_code/node_modules/firebase-admin/lib/utils/error.js:25:28)
at new FirebaseMessagingError (/user_code/node_modules/firebase-admin/lib/utils/error.js:130:23)
at Function.FirebaseMessagingError.fromServerError (/user_code/node_modules/firebase-admin/lib/utils/error.js:154:16)
at /user_code/node_modules/firebase-admin/lib/messaging/messaging.js:80:63
at Array.forEach (native)
at mapRawResponseToDevicesResponse (/user_code/node_modules/firebase-admin/lib/messaging/messaging.js:76:26)
at /user_code/node_modules/firebase-admin/lib/messaging/messaging.js:223:24
at process._tickDomainCallback (internal/process/next_tick.js:135:7)
errorInfo: 
{ code: 'messaging/registration-token-not-registered',
message: 'The provided registration token is not registered. A previously valid registration token can be unregistered for a variety of reasons. See the error documentation for more details. Remove this registration token and stop using it to send messages.' } }

不确定您是否有与我相同的错误...