FCM send duplicate message

[bangln]

Operating System

window 11

Environment (if applicable)

N/A

Firebase SDK Version

9.16

Firebase SDK Product(s)

Messaging

Project Tooling

React app, php

Detailed Problem Description

I send message to firebase and got 2 noti in my device:

Steps and code to reproduce issue

API endpoint: https://fcm.googleapis.com/v1/projects/project-id/messages:send
body: {
"message": {
"token" : "token",
"notification": {
"title": "test"
},
"webpush": {
"headers": {
"Urgency": "high"
},
"notification": {
"body": "test"
}
}
}
}

[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[hsubox76]

In order to see if this is an SDK error, we need to see the code you are using in your app that is receiving the messages, not the REST call you are making to send the message. Are you using onMessage, onBackgroundMessage, or both? What does your code in each look like? Make sure to indicate which code is in your main app and which code is in the service worker.

[bangln]

I use this code:
export const getMessagingToken = async () => {
let currentToken = "";
const messagingResolve = await messaging();
if (!messagingResolve) return;
try {
currentToken = await getToken(messagingResolve, {
vapidKey: ""
});
} catch (error) {
console.log("An error occurred while retrieving token. ", error);
}
return currentToken;
};
export const onMessageListener = () =>
new Promise((resolve) => {
messaging.onMessage((payload) => {
resolve(payload);
});
});
export default {
getMessagingToken,
onMessageListener
}
but I dont call onMessageListener in antwhere, i just getToken and use it to push message

[hsubox76]

I don't think I understand. The part of the code the JS SDK (the library covered by this repo) is responsible for is receiving the message. If there's a bug in this SDK causing the message to be received twice, we need to look at the code around receiving the message. If you feel like the error is in the push service, that's not covered by this SDK, which doesn't send push notifications.

You show you're using messaging.onMessage() inside onMessageListener() but then you say you don't call it. I don't understand what code you're using to listen for messages then? Is there any possibility you're calling it twice in your code somewhere and creating two listeners?

Additionally, you say you're using version 9.16 and you seem to be using the compat API. We recommend you update to the latest version (we're currently on 11.0.1) and upgrade to the modular version if possible. If we end up making any bug fixes, there's no guarantee they will be backported to compat.

[google-oss-bot]

Hey @bangln. We need more information to resolve this issue but there hasn't been an update in 5 weekdays. I'm marking the issue as stale and if there are no new updates in the next 5 days I will close it automatically.

If you have more information that will help us get to the bottom of this, just add a comment!