fcm | Firebase Cloud Messaging notifications channel | Notification library

I am receiving messages from firebase for notifications with APNs. In firebase, I have the certificate of APNs key, with the same id in the Xcode project in Firebase that is extracted from Apple Developer.

But I don't know why this could be happening and I get this error and it is registering two tokens in the Messaging extension:

The FCM documentation says that one should use device groups to send to ALL of a user's devices. The API for it, though, is still a legacy API, and I can't get it to work.

I am using code like the following, where project_id is the sender ID and api_key is the Web API Key from the firebase console:

I am trying to install airnotifier on my machine, I am getting this error

My python version is 3.6

I am using Agora for a one-to-one video chat purpose in Flutter. User1 has an app to go online and user2 has another app to go online. After both of them go online, they can do video chat with one another. Both apps have almost similar codebase.

I have a screen or activity (say screen1) where an alert dialog is shown on tapping a button (say button1). On tapping the Continue button in the alert dialog, the dialog disappears and the user is taken to the screen (say screen2) where the video chat takes place. But after going to the video chat screen successfully, if the user taps on the back button on the mobile set then s/he is taken to screen1 and after tapping on button1, if the user taps on the Continue button in the popped up alert dialog, the user is again taken to screen2 but this time the local video (i.e. video of the user using the app) keeps loading for ever. Obviously I want the local video to load as it did for the first time.

I am gonna put my code here in such a way that you can easily run that.

Following code is for user1. For user2, no alert box is there in the app. Same code from user1 is used for user2 app, except the value of remoteUid is set to be 2 for user2 while this value is set to be 1 for user1. These are just two values identifying 2 users.

For user1:

main.dart:

So I setup my push notification handler:

Preface:

My App is Flutter based - but native code implementation is required to get FCM messages working, see below for more details

GitHub issue #154 for reference.

I'm having immense trouble getting FCM notifications working on iOS, specifically on my app published to Testflight. I have been stuck on this problem for a week and have absolutely no idea how to proceed.

Problem

When running locally using debug/release builds on my devices using Xcode/Android Studio, notifications are received in the background, foreground, etc. When uploading the exact same app to Testflight, not a single notification will come through via FCM.

This is crucial as FCM delivers VoIP notifications, these aren't being received on Testflight which is extremely distressing

Questions & Solutions?

There are 2 questions I found (here & here), both seemed to indicate it is a APNS certificate problem (APNS -> Firebase). I have recreated my certificate and added it to the Firebase console (using the same .csr file for all certificate generating operations)

Setup/Configuration:

• APNS Key generated & added to Firebase

• Capabilities:

Tried with:

A project I'm working on requires the use of FCM Push Notifications & Messages for VoIP control amongst others.

Problem:

My iOS physical device receives push notifications, but only when the app is in the background or closed but NOT when in the foreground. Further, it does NOT receive any fcm message (data) notifications at all such as messages with only data and no notification title/body i.e. VoIP status message.

My setup steps are as follows (a detailed setup and general flow I followed can be found here):

1. Register a (Info.plist) (see here)

2. Download & install GoogleService-Info.plist with Xcode (see here)

3. Create APNS key with enabled Push Notifications and uploaded .p8 file to Firebase (see here)

4. Modify with Swift code:

AppDelegate.swift code:

My app starts with a simple html form. the inputs are PIN# and Date Of Birth.

My express server runs on the same port 3000, when the user submits their data, puppeteer starts and logs into a specific webpage. Then I scrape the image on that webpage. Google Api takes the text from that image and saves it in an array. I then post that array string to src/results.html. But as soon as the user hits submit, they are redirected to /resuts route right immediately and the page says cannot post the data. but when I see in the console (roughly a minute later) that the post was successful, I refresh the page and I get the array of text I wanted to see.

How can I await for the data to finish being posted to the route before the page loads the data? Im using react for client side. below is my server side code. client side is just a basic react page login and a static /results page meant for the data.

I am trying to measure the number of times that different words co-occur with a particular term in collections of Chinese newspaper articles from each quarter of a year. To do this, I have been using Quanteda and written several R functions to run on each group of articles. My work steps are:

1. Group the articles by quarter.
2. Produce a frequency co-occurence matrix (FCM) for the articles in each quarter (Function 1).
3. Take the column from this matrix for the 'term' I am interested in and convert this to a data.frame (Function 2)
4. Merge the data.frames for each quarter together, then produce a large csv file with a column for each quarter and a row for each co-occurring term.

This seems to work okay. But I wondered if anybody more skilled in R might be able to check what I am doing is correct, or might suggest a more efficient way of doing it?

Thanks for any help!