在 Firebase 云消息传递中获取这些错误

Question

这是使用 Firebase 消息传递推送通知时显示的错误...

Error: Exactly one of topic, token or condition is required
at FirebaseMessagingError.FirebaseError [as constructor] (/srv/node_modules/firebase-admin/lib/utils/error.js:42:28)
Error: Exactly one of topic, token or condition is required
at FirebaseMessagingError.FirebaseError [as constructor] (/srv/node_modules/firebase-admin/lib/utils/error.js:42:28)
at FirebaseMessagingError.PrefixedFirebaseError [as constructor] (/srv/node_modules/firebase-admin/lib/utils/error.js:88:28)
at new FirebaseMessagingError (/srv/node_modules/firebase-admin/lib/utils/error.js:254:16)
at Object.validateMessage (/srv/node_modules/firebase-admin/lib/messaging/messaging-types.js:46:15)
at Messaging.send (/srv/node_modules/firebase-admin/lib/messaging/messaging.js:208:27)
at sendNotification (/srv/index.js:227:18)
at exports.onCreateActivityFeedItem.functions.firestore.document.onCreate (/srv/index.js:197:13)
at <anonymous>
at process._tickDomainCallback (internal/process/next_tick.js:229:7)

这是 Firebase 消息传递的 js 代码

exports.onCreateActivityFeedItem = functions.firestore
.document('/feed/{userId}/feedItems/{activityFeedItem}')
.onCreate(async (snapshot, context) => {
console.log('Activity Feed Item Created', snapshot.data());

此日志已打印...

// 1) Get user connected to the feed, 
//send notification if they have token
const userId = context.params.userId;
const userRef = admin.firestore().doc(`users/${userId}`);
const doc = await userRef.get();
// 2) Once we have user check if they have notification item
const androidNotificationToken = doc.data().androidNotificationToken;
const createdActivityFeedItem = snapshot.data();
if (androidNotificationToken) {
// send notification
sendNotification(androidNotificationToken, createdActivityFeedItem);
} else {
console.log('User have no token, cant send notification');
}
function sendNotification(androidNotificationToken, activityFeedItem) {
let body;
// switch bod   y value base on notification item (like, comment or follow)
switch (activityFeedItem.type) {
case 'comment':
body = `${activityFeedItem.username} replied: ${activityFeedItem.commentData}`;
break;
case 'like':
body = `${activityFeedItem.username} liked your post.`;
case 'follow':
body = `${activityFeedItem.username} followed you.`;
default:
break;
}
// 4) create message for push notification
const message = {
notification: { body },
token: { androidNotificationToken },
data: { recipient: userId }
};
// 5) send message with admin.messaging
admin
.messaging()
.send(message)
.then((response) => {
// Response is a message ID string.
console.log('Successfully sent message:', response);
})
.catch((error) => {
console.log('Error sending message:', error);
});
}
});

这是颤振代码

configurePushNotifications() {
final GoogleSignInAccount user = googleSignIn.currentUser;
if (Platform.isIOS) {
getIOSPermission();
}
_firebaseMessaging.getToken().then((token) {
print('Token received: $token');
usersRef.document(user.id).updateData({
'androidNotificationToken': token,
});
_firebaseMessaging.configure(
onMessage: (Map<String, dynamic> message) async {
print('Message is : $message');
final String recipientId = message['data']['recipient'];
final String body = message['notification']['body'];
if (recipientId == user.id) {
print('Notification Shown');
SnackBar snackbar = SnackBar(
content: Text(
body,
overflow: TextOverflow.ellipsis,
),
);
_scaffoldKey.currentState.showSnackBar(snackbar);
}
print('Notification not shown');
},
//  onResume: (Map<String, dynamic> message) async {},
//   onLaunch: (Map<String, dynamic> message) async {},
);
});
}

要获得ios权限，但我正在使用Android手机进行调试

getIOSPermission() {
_firebaseMessaging.requestNotificationPermissions(
IosNotificationSettings(
alert: true,
badge: true,
sound: true,
),
);
_firebaseMessaging.onIosSettingsRegistered.listen((settings) {
print('Settings registered: $settings');
});
}

onCreateActivityFeedItem 活动源项已创建 { commentData： 'ab to man ja'， mediaUrl： 'https://firebasestorage.googleapis.com/v0/b/chautari-ccfba.appspot.com/o/post_dcc8a054-a972-4b88-8d3f-4802de74393a.jpg?alt=media&token=1120cadb-14cb-4173-a4ec-775290f68fc8'， postId： 'dcc8a054-a972-4b88-8d3f-4802de74393a'， timeStamp： Timestamp { _seconds： 1589793598， _nanoseconds： 111000000 }， type： 'comment'， userId： '116659062086341253410'， userProfileImage： "https://firebasestorage.googleapis.com/v0/b/chautari-ccfba.appspot.com/o/post_profile_pic_postId%3A116659062086341253410.jpg?alt=media&token=8da521ea-2a5e-4833-93b7-9a487afb7be5"，用户名："里希" } 下午3：23：55.242 onCreateActivityFeedItem 错误：正好需要主题、令牌或条件之一 at FirebaseMessagingError.FirebaseError [as constructor] (/srv/node_modules/firebase-admin/lib/utils/error.js：42：28( at FirebaseMessagingError.PrefixedFirebaseError [as constructor] (/srv/node_modules/firebase-admin/lib/utils/error.js：88：28( at new FirebaseMessagingError (/srv/node_modules/firebase-admin/lib/utils/error.js：254：16( at Object.validateMessage (/srv/node_modules/firebase-admin/lib/messaging/messaging-types.js：46：15( at Messaging.send (/srv/node_modules/firebase-admin/lib/messaging/messaging.js：208：27( at sendNotification (/srv/index.js：227：18( at exports.onCreateActivityFeedItem.functions.firestore.document.onCreate (/srv/index.js：197：13( 在 在process._tickDomainCallback(内部/进程/next_tick.js：229：7( 下午3：23：55.258 onCreateActivityFeedItem

Answer 1

错误似乎来自JavaScript代码。更准确地说，这似乎不对：

const message = {
notification: { body },
token: { androidNotificationToken },
data: { recipient: userId }
};

如果您查看有关发送消息的 Firebase 文档，则其中包含以下示例：

var message = {
data: {
score: '850',
time: '2:45'
},
token: registrationToken
};

您将令牌包装在一个额外的{}中，这是不正确的，因为它会导致此 JSON：token: { androidNotificationToken: "valueOfandroidNotificationToken" }。

更有可能的是：

const message = {
notification: { body },
token: androidNotificationToken,
data: { recipient: userId }
};