I create a simple interface to send notification using firebase cloud messaging service. It displays notification when I send notification using firebase - console. But when I insert data using my interface to firebase, It is not showing anything. How can I solve this problem.
Future<void> insertItem() async {
final form = formKey.currentState;
form.save();
Firestore.instance.runTransaction((transaction) async {
await transaction.set(Firestore.instance.collection("Notification").document(), {
'User': _user,
'Title': _title,
'Body': _msg,
});
});}
-Insert Data into Firebase Code-
exports.notificationTrigger = functions.firestore
.document("Notification/{notificationId}")
.onCreate((snapshot, context) => {
msgData = snapshot.data();
var userRef = admin.firestore().collection("Token").doc(msgData.User);
return userRef.get().then((doc) => {
if (!doc.exists) {
console.log("No Devices");
} else {
token = doc.data().Token;
var payload = {
notification: {
title: msgData.Title,
body: msgData.Body,
},
data: {
sendername: msgData.Title,
message: msgData.Body,
},
};
return admin
.messaging()
.sendToDevice(token, payload)
.then(() => {
console.log("pushed notification");
})
.catch((err) => {
console.log(err);
});
}
});});
index.js -
Related
I have the following Function that:
Listens for document (text message) creation
Grab IDs of members of a group chat
Get the FCM Tokens for each member
With a for-loop, send messages to group members
exports.sendChatMessage = functions.firestore
.document("chats/{mealID}/messages/{messageID}")
.onCreate((snap, context) => {
const data = snap.data();
const mealID = context.params.mealID;
const senderID = data.senderID;
const senderName = data.senderName;
const messageContent = data.content;
var docRef = db.collection("chats").doc(mealID);
docRef
.get()
.then((doc) => {
if (doc.exists) {
const docData = doc.data();
const mealName = docData.name;
const userStatus = docData.userStatus;
var users = docData.to;
var eligibleUsers = users.filter(
(user) => userStatus[user] == "accepted"
);
eligibleUsers.push(docData.from);
// get fcmTokens from eligibleUsers and send the messagme
db.collection("users")
.where("uid", "in", eligibleUsers)
.get()
.then((snapshot) => {
var fcmTokens = [];
var thumbnailPicURL = "";
// get thumbnailpic of the sender and collect fcmTokens
snapshot.forEach((doc) => {
if (doc.data().uid == senderID) {
thumbnailPicURL =
doc.data().thumbnailPicURL == null
? "https://i.imgur.com/8wSudUk.png"
: doc.data().thumbnailPicURL;
} else {
fcmTokens.push(doc.data().fcmToken);
}
});
// send the message fcmTokens
fcmTokens.forEach((token) => {
if (token != "") {
const fcmMessage = {
message: {
token: token,
notification: {
title: mealName,
body: senderName + ": " + messageContent,
image: thumbnailPicURL,
},
apns: {
payload: {
aps: {
category: "MESSAGE_RECEIVED",
},
MEAL_ID: mealID,
},
},
},
};
tokenManger.sendFcmMessage(fcmMessage);
}
});
return true;
});
} else {
// doc.data() will be undefined in this case
console.log("No such document!");
return false;
}
})
.catch((error) => {
console.log("Error getting document:", error);
return false;
});
return true;
});
My send function comes from a helper file that uses the HTTP V1 protocol to build the send-request:
const { google } = require("googleapis");
const https = require("https");
const MESSAGING_SCOPE = "https://www.googleapis.com/auth/firebase.messaging";
const SCOPES = [MESSAGING_SCOPE];
const PROJECT_ID = MY_PROJECT_ID;
const HOST = "fcm.googleapis.com";
const PATH = "/v1/projects/" + PROJECT_ID + "/messages:send";
exports.getAccessToken = () => {
return new Promise(function (resolve, reject) {
const key = require("./service-account.json");
var jwtClient = new google.auth.JWT(
key.client_email,
null,
key.private_key,
SCOPES,
null
);
jwtClient.authorize(function (err, tokens) {
if (err) {
reject(err);
return;
}
resolve(tokens.access_token);
});
});
};
//send message
exports.sendFcmMessage = (fcmMessage) => {
this.getAccessToken().then(function (accessToken) {
var options = {
hostname: HOST,
path: PATH,
method: "POST",
headers: {
Authorization: "Bearer " + accessToken,
},
// … plus the body of your notification or data message
};
var request = https.request(options, function (resp) {
resp.setEncoding("utf8");
resp.on("data", function (data) {
console.log("Message sent to Firebase for delivery, response:");
console.log(data);
});
});
request.on("error", function (err) {
console.log("Unable to send message to Firebase");
console.log(err);
});
request.write(JSON.stringify(fcmMessage));
request.end();
});
};
It worked all fine in the emulator but once deployed, there're significant delays (~3 mins):
I also noticed that the console says the cloud function finishes execution BEFORE sendFcmMessage logs success messages.
I did some research online, it appears that it might have something to do with the usage of Promise but I wasn't sure if that's the sole reason or it has something to do with my for-loop.
The Problem
To summarize the issue, you are creating "floating promises" or starting other asynchronous tasks (like in sendFcmMessage) where you aren't returning a promise because they use callbacks instead.
In a deployed function, as soon as the function returns its result or the Promise chain resolves, all further actions should be treated as if they will never be executed as documented here. An "inactive" function might be terminated at any time, is severely throttled and any network calls you make (like setting data in database or calling out to FCM) may never be executed.
An indicator that you haven't properly chained the promises is when you see the function completion log message ("Function execution took...") before other messages you are logging. When you see this, you need to look at the code you are running and confirm whether you have any "floating promises" or are using callback-based APIs. Once you have changed the callback-based APIs to use promises and then made sure they are all chained together properly, you should see a significant boost in performance.
The fixes
Sending the message data to FCM
In your tokenManger file, getAccessToken() could be reworked slightly and sendFcmMessage should be converted to return a Promise:
exports.getAccessToken = () => {
return new Promise(function (resolve, reject) {
const key = require("./service-account.json");
const jwtClient = new google.auth.JWT(
key.client_email,
null,
key.private_key,
SCOPES,
null
);
jwtClient.authorize(
(err, tokens) => err ? reject(err) : resolve(tokens.access_token)
);
});
};
//send message
exports.sendFcmMessage = (fcmMessage) => {
// CHANGED: return the Promise
return this.getAccessToken().then(function (accessToken) {
const options = {
hostname: HOST,
path: PATH,
method: "POST",
headers: {
Authorization: "Bearer " + accessToken,
},
// … plus the body of your notification or data message
};
// CHANGED: convert to Promise:
return new Promise((resolve, reject) => {
const request = https.request(options, (resp) => {
resp.setEncoding("utf8");
resp.on("data", resolve);
resp.on("error", reject);
});
request.on("error", reject);
request.write(JSON.stringify(fcmMessage));
request.end();
});
});
};
However, the above code was built for googleapis ^52.1.0 and google-auth-library ^6.0.3. The modern versions of these modules are v92.0.0 and v7.11.0 respectively. This means you should really update the code to use these later versions like so:
// Import JWT module directly
const { JWT } = require('google-auth-library');
// FIREBASE_CONFIG is a JSON string available in Cloud Functions
const PROJECT_ID = JSON.parse(process.env.FIREBASE_CONFIG).projectId;
const FCM_ENDPOINT = `https://fcm.googleapis.com/v1/projects/${PROJECT_ID}/messages:send`;
const FCM_SCOPES = ["https://www.googleapis.com/auth/firebase.messaging"];
exports.sendFcmMessage = (fcmMessage) => {
const key = require("./service-account.json"); // consider moving outside of function (so it throws an error during deployment if its missing)
const client = new JWT({
email: key.client_email,
key: key.private_key,
scopes: FCM_SCOPES
});
return client.request({ // <-- this uses `gaxios`, Google's fork of `axios` built for Promise-based APIs
url: FCM_ENDPOINT,
method: "POST",
data: fcmMessage
});
}
Better yet, just use the messaging APIs provided by the Firebase Admin SDKs that handle the details for you. Just feed it the message and tokens as needed.
import { initializeApp } from "firebase-admin/app";
import { getMessaging } from "firebase-admin/messaging";
initializeApp(); // initializes using default credentials provided by Cloud Functions
const fcm = getMessaging();
fcm.send(message) // send to one (uses the given token)
fcm.sendAll(messagesArr) // send to many at once (each message uses the given token)
fcm.sendMulticast(message) // send to many at once (uses a `tokens` array instead of `token`)
The Cloud Function
Updating the main Cloud Function, you'd get:
exports.sendChatMessage = functions.firestore
.document("chats/{mealID}/messages/{messageID}")
.onCreate((snap, context) => {
const mealID = context.params.mealID;
const { senderID, senderName, content: messageContent } = snap.data();
const docRef = db.collection("chats").doc(mealID);
/* --> */ return docRef
.get()
.then((doc) => {
if (!doc.exists) { // CHANGED: Fail fast and avoid else statements
console.log(`Could not find "chat:${mealID}"!`);
return false;
}
const { userStatus, to: users, name: mealName, from: fromUser } = doc.data();
const eligibleUsers = users.filter(
(user) => userStatus[user] == "accepted"
);
eligibleUsers.push(fromUser);
// get fcmTokens from eligibleUsers and send the message
/* --> */ return db.collection("users")
.where("uid", "in", eligibleUsers) // WARNING: This will only work for up to 10 users! You'll need to break it up into chunks of 10 if there are more.
.get()
.then(async (snapshot) => {
const fcmTokens = [];
let thumbnailPicURL = "";
// get thumbnailpic of the sender and collect fcmTokens
snapshot.forEach((doc) => {
if (doc.get("uid") == senderID) {
thumbnailPicURL = doc.get("thumbnailPicURL"); // update with given thumbnail pic
} else {
fcmTokens.push(doc.get("fcmToken"));
}
});
const baseMessage = {
notification: {
title: mealName,
body: senderName + ": " + messageContent,
image: thumbnailPicURL || "https://i.imgur.com/8wSudUk.png", // CHANGED: specified fallback image here
},
apns: {
payload: {
aps: {
category: "MESSAGE_RECEIVED",
},
MEAL_ID: mealID,
},
}
}
// log error if fcmTokens empty?
// ----- OPTION 1 -----
// send the message to each fcmToken
const messagePromises = fcmTokens.map((token) => {
if (!token) // handle "" and undefined
return; // skip
/* --> */ return tokenManger
.sendFcmMessage({
message: { ...baseMessage, token }
})
.catch((err) => { // catch the error here, so as many notifications are sent out as possible
console.error(`Failed to send message to "fcm:${token}"`, err);
})
});
await Promise.all(messagePromises); // wait for all messages to be sent out
// --------------------
// ----- OPTION 2 -----
// send the message to each fcmToken
await getMessaging().sendAll(
fcmTokens.map((token) => ({ ...baseMessage, token }))
);
// --------------------
return true;
})
.catch((error) => {
console.log("Error sending messages:", error);
return false;
});
})
.catch((error) => {
console.log("Error getting document:", error);
return false;
});
});
I found out that the culprit is my queries to db. Like #samthecodingman commented, I was creating floating Promises.
Originally, I have codes like:
db.collection("users")
.where("uid", "in", eligibleUsers)
.get()
.then((snapshot) => {...}
All I needed to do is to return that call:
return db.collection("users")
.where("uid", "in", eligibleUsers)
.get()
.then((snapshot) => {...}
Although it's still not instant delivery, it's much faster now.
I have login code in react native using firebase and google signin auth.
So when new user sign in using google account, I set new data. And if user has signed in before, user go to main page.
My problem is when new user sign in > code start to get signInWithCredential > set new data user, before set data finish, onAuthStateChanged was detect there is change in auth and start to get user document / data. But because it's not finish yet, it throw error 'Can Not Get UID / Undefined UID'.
This is my login page code:
const _signIn = async () => {
setInitializing(true);
try {
await GoogleSignin.hasPlayServices();
const userInfo = await GoogleSignin.signIn();
const credential = auth.GoogleAuthProvider.credential(
userInfo.idToken,
userInfo.accessToken,
);
await auth()
.signInWithCredential(credential)
.then(response => {
const uid = response.user.uid;
const data = {
uid: uid,
email: userInfo.user.email,
fullname: userInfo.user.name,
bio: 'Halo!! ..',
username: uid.substring(0, 8),
};
const usersRef = firestore().collection('users');
usersRef
.doc(uid)
.get()
.then(firestoreDocument => {
if (!firestoreDocument.exists) {
usersRef
.doc(data.uid)
.set(data)
.then(() => {
setInitializing(false); return;
})
.catch(error => {
setInitializing(false);
Alert.alert(JSON.stringify(error.message));
});
} else {
setInitializing(false);
return;
}
})
.catch(error => {
Alert.alert(JSON.stringify(error.message));
console.log('Error getting document:', error);
return;
});
});
} catch (error) {
if (error.code === statusCodes.SIGN_IN_CANCELLED) {
setInitializing(false);
Alert.alert('Sign in canceled');
} else if (error.code === statusCodes.IN_PROGRESS) {
setInitializing(false);
Alert.alert('Signin in progress');
} else if (error.code === statusCodes.PLAY_SERVICES_NOT_AVAILABLE) {
setInitializing(false);
Alert.alert('PLAY_SERVICES_NOT_AVAILABLE');
} else {
setInitializing(false);
Alert.alert(JSON.stringify(error.message));
}
}};
And this is my index page code to check auth user:
useEffect(() => {
try {
NetInfo.fetch().then(state => {
if(state.isConnected === false){
Alert.alert('No Internet Connection Detected');
setInitializing(false);
return;
}
});
setInitializing(true);
await auth().onAuthStateChanged(user => {
if (user) {
const usersRef = firestore().collection('users');
usersRef
.doc(user.uid)
.get()
.then(document => {
const userData = document.data().uid;
setisLogin(userData);
})
.then(() => {
setInitializing(false);
})
.catch(error => {
setInitializing(false);
Alert.alert(JSON.stringify(error.message));
});
} else {
setInitializing(false);
}
});
} catch (error) {
Alert.alert(error);
} }, []);
How to wait auth().signInWithCredential finish? Thankyou.
If you need to perform more actions such read data from database or so after the user logs in, you should ideally unsubscribe from onAuthStateChanged. Essentially it won't trigger when the auth state changes (i.e. user logs in) and let you do your own custom actions. Once your processing is done, then you manually redirect the user to where the onAuthStateChange would have redirected is the user wa s logged in.
const authStateListenter = await auth().onAuthStateChanged(user => {
//...
})
// Unsubscribe auth state observer when _signIn function runs
const _signIn = async () => {
setInitializing(true);
authStateListenter()
}
Calling authStateListener will disable the auth state observer. It's similar to detaching Firestore's listeners.
I try to login into firebase with google authentication (using React hooks), and I need to click on the button twice. I want the user to get into the homepage after the first click. What is wrong here?
googleLogin.js
import firebase from "firebase/app";
import { auth,app } from "../../../../config/firebase";
export const googleLogin = async (e, information, setInformation, signup, login, history) => {
var provider = new firebase.auth.GoogleAuthProvider();
firebase
.auth()
.signInWithPopup(provider)
.then( resp => {
let {user, credential,additionalUserInfo: userInfo} = resp;
let token = credential.accessToken;
if (userInfo.isNewUser) signupWithGoogle(user, credential, userInfo);
})
.then(()=>{
history.push('/')
})
.catch((error) => {
...
});
};
const signupWithGoogle = (user, credential, userInfo)=>{
app.firestore().collection('users').doc(user.uid).set({
firstName: userInfo.profile.given_name,
lastName: userInfo.profile.family_name});
const batch = app.firestore().batch();
const initData = [
{ Applied: { positionIds: [], title: 'Applied' } },
{ Contract: { positionIds: [], title: 'Contract' } },
{ Denied: { positionIds: [], title: 'Denied' } },
{ InProgress: { positionIds: [], title: 'In Progress' } },
{ ReceivedTask: { positionIds: [], title: 'Received Task' } },
];
initData.forEach((doc) => {
const docRef = app
.firestore()
.collection('users')
.doc( user.uid)
.collection('columns')
.doc(Object.keys(doc)[0]);
batch.set(docRef, Object.values(doc)[0]);
});
return batch.commit();
}
I had the same problem to login and the problem was in my HTLM code.
I was using a form.
To resolve it, I used a simpler code in HTLM.
EDITED onMessageSent function. Still the same error.
I'm trying to enable push notifications in flutter and I am using Firebase Messaging. I am encountering the following issue. There are two, namely "onCreateActivityFeedItem" & "onMessageSent".
For the first one, "onCreateActivityFeedItem", the notification feature is perfectly fine, but I could not recognize the problem with the second one. Please do help.
The problem I am facing :
onMessageSent
TypeError: Cannot read property 'androidNotificationToken' of undefined at exports.onMessageSent.functions.firestore.document.onCreate (/workspace/index.js:152:47) at process._tickCallback (internal/process/next_tick.js:68:7)
Here is the "onCreateActivityFeedItem" :
From my index.js
exports.onCreateActivityFeedItem = functions.firestore
.document("/feed/{userId}/feedItems/{activityFeedItem}")
.onCreate(async (snapshot, context) => {
console.log("Activity Feed Item Created", snapshot.data());
// 1) Get user connected to the feed
const userId = context.params.userId;
const mediaUrl=context.params.mediaUrl;
const userRef = admin.firestore().doc(`users/${userId}`);
const doc = await userRef.get();
// 2) Once we have user, check if they have a notification token; send notification, if they have a token
const androidNotificationToken = doc.data().androidNotificationToken;
const createdActivityFeedItem = snapshot.data();
if (androidNotificationToken) {
sendNotification(androidNotificationToken, createdActivityFeedItem);
} else {
console.log("No token for user, cannot send notification");
}
function sendNotification(androidNotificationToken, activityFeedItem) {
let body;
// 3) switch body value based off of notification type
switch (activityFeedItem.type) {
case "comment":
body = `${activityFeedItem.username} replied: ${
activityFeedItem.commentData
}.`;
break;
case "like":
body = `${activityFeedItem.username} booped you.`;
break;
case "follow":
body = `${activityFeedItem.username} started petting you.`;
break;
default:
break;
}
// 4) Create message for push notification
const message = {
notification: {
body:body,
image:mediaUrl
},
token: androidNotificationToken,
data: {recipient: userId,
}
};
// 5) Send message with admin.messaging()
admin
.messaging()
.send(message)
.then(response => {
// Response is a message ID string
console.log("Successfully sent message", response);
return null;
})
.catch(error => {
console.log("Successfully sent message", response);
throw Error("Could not send message.",error)});
// admin.messaging().sendToDevice(androidNotificationToken,message);
}
});
From my index.js
Here is the, "onMessageSent":
exports.onMessageSent = functions.firestore
.document('/messages/{chatId}/messageInfo/{messageFeedItem}')
.onCreate(async (snapshot, context) => {
console.log("Message Created", snapshot.data());
// 1) Get user connected to the feed
const chatId=context.params.chatId;
const userId = context.params.idTo;
const idTo =context.params.idTo;
const userRef = admin.firestore().doc(`users/${idTo}`);
const doc = await userRef.get();
const createdMessageFeedItem = snapshot.data();
// 2) Once we have user, check if they have a notification token; send notification, if they have a token
const androidNotificationToken = doc.data().androidNotificationToken;
if (androidNotificationToken) {
sendNotification(androidNotificationToken, createdMessageFeedItem);
} else {
console.log("No token for user, cannot send notification");
}
function sendNotification(androidNotificationToken,createdMessageFeedItem) {
let body;
// 3) switch body value based off of notification type
switch (messageFeedItem.type) {
case 0:
body = `${messageFeedItem.username} has sent a message : ${
messageFeedItem.content
}.`;
break;
case 1:
body = `${messageFeedItem.username} has sent an image.`;
break;
case 2:
body = `${messageFeedItem.username} has sent a gif.`;
break;
default:
break;
}
// 4) Create message for push notification
const message = {
notification:
{body:body,},
token: androidNotificationToken,
data: {recipient: idTo,}
};
// 5) Send message with admin.messaging()
admin
.messaging()
.send(androidNotificationToken,message)
.then(response => {
// Response is a message ID string
console.log("Successfully sent message", response);
return null;
})
.catch(error => {
console.log("Successfully sent message", response);
throw Error("Could not send message.",error)});
// admin.messaging().sendToDevice(androidNotificationToken,message);
}
});
Where I called/declared the onMessage, onResume :
configurePushNotifications() {
final GoogleSignInAccount user = googleSignIn.currentUser;
if (Platform.isIOS) {
getiOSPermission();
}
_firebaseMessaging.getToken().then((token) {
print("Firebase messaging token : $token");
setState(() {
currentUser.androidNotificationToken = token;
});
usersref.doc(user.id).update({"androidNotificationToken": token});
});
_firebaseMessaging.configure(
onLaunch: (Map<String, dynamic> message) async {
_firebaseMessaging.getToken().then((token) {
print("Firebase messaging token : $token");
usersref.doc(user.id).update({"androidNotificationToken": token});
});
// print("On Launch : $message\n");
// _navigateToDetail(message);
},
onResume: (Map<String, dynamic> message) async {
_firebaseMessaging.getToken().then((token) {
print("Firebase messaging token : $token");
usersref.doc(user.id).update({"androidNotificationToken": token});
});
print("On Resume : $message");
_navigateToDetail(message);
},
onMessage: (Map<String, dynamic> message) async {
print("On message : $message\n");
final String recipientId = message['data']['recipient'];
final String body = message['notification']['body'];
if (recipientId == user.id) {
//Notification shown");
SnackBar snackBar = SnackBar(
backgroundColor: Colors.blueAccent,
content: Text(
body,
overflow: TextOverflow.ellipsis,
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.w600,
),
),
action: SnackBarAction(
label: "Go",
textColor: Colors.black,
onPressed: () {
Navigator.push(
context,
MaterialPageRoute(builder: (context) {
return ActivityFeed();
}),
);
}),
);
_scaffoldKey.currentState.showSnackBar(snackBar);
}
//Notifications not shown.");
},
);
}
I tried different ways like getting the androidNotificationToken by updating in cloud firestore and getting it, but it didn't work.
[Users in Cloud Firestore][1]
[1] https://imgur.com/a/u5Df0zD
I'm just a beginner, trying to learn new stuff. Please do help.
Thank you,
SLN
Cannot read type error of undefined
error happens when the data dosent exist at docu.data().androidNotificationToken
Ensure the reference is correct, I prefer using this type of path for more clarity
let ref = db.collection(‘users’).doc(userID);etc
You can also catch a empty snapshot
var snapshot = await ref.get();
if(snapshot.empty){
console.log(‘snapshot is empty’);
}
I am trying to send notifications from firebase console to my react-native app
I followed the poor documentation here as much as I understand: https://invertase.io/oss/react-native-firebase/v6/messaging/quick-start
I installed #react-native-firebase/app and /messaging and here is my code in component:
componentDidMount() {
this.reqNotifications()
this.checkNotificationPermission()
}
reqNotifications() {
requestNotifications(['alert', 'badge', 'sound']).then(({status, settings}) => {
console.log('NOTIFICATION STATUS' + status)
});
}
async checkNotificationPermission() {
const enabled = await messaging().hasPermission();
if (enabled) {
console.log('APPROVED');
await messaging().registerForRemoteNotifications()
messaging().getToken().then(token => console.log('token: >> ' + token))
} else {
console.log('NOT APPROVED');
}
}
I am requesting permission via react-native-permissions and permission request is
working.
My Apple APNs are OK on Apple and Firebase console
And I am getting my token by getToken() method on the code
succesfully.
But I cant send anything to device from firebase; nothing happening on neither foreground nor background . I tried with-token test and also tried normal but no, nothing happens.
I added this code to componentDidMount:
messaging().onMessage(async remoteMessage => {
console.log('FCM Message Data:', remoteMessage.data);
});
As I understand this subscribes for cloud messages and when I send some cloud message notification from firebase-console, I should get console output; but nothing happens.
I dont know what am I missing but I think there is a big update on this package and most of docs are for previous version and I really stuck here thanks for assist
for rnfirebase.io V6
componentDidMount = async () => {
this.checkNotificationPermission();
await messaging().requestPermission({provisional: true});
await messaging().registerDeviceForRemoteMessages();
await this.getFCMToken();
if (Platform.OS === 'android') {
this.createAndroidNotificationChannel();
}
this.backgroundState();
this.foregroundState();
};
checkNotificationPermission = () => {
firebase
.messaging()
.hasPermission()
.then(enabled => {
if (!enabled) {
this.promptForNotificationPermission();
}
});
};
promptForNotificationPermission = () => {
firebase
.messaging()
.requestPermission({provisional: true})
.then(() => {
console.log('Permission granted.');
})
.catch(() => {
console.log('Permission rejected.');
});
};
createAndroidNotificationChannel() {
const channel = new firebase.notifications.Android.Channel(
'channelId',
'Push Notification',
firebase.notifications.Android.Importance.Max,
).setDescription('Turn on to receive push notification');
firebase.notifications().android.createChannel(channel);
}
foregroundState = () => {
const unsubscribe = messaging().onMessage(async notification => {
console.log('Message handled in the foregroundState!', notification);
});
return unsubscribe;
};
// Register background handler
backgroundState = () => {
messaging().setBackgroundMessageHandler(async notification => {
console.log('Message handled in the background!', notification);
});
};