react-native-background-fetch | Periodic callbacks in the background for both IOS | iOS library

I'm using react-native-background-fetch to receive app refresh events and have been struggling to dispatch an action (that fetches data) when it's triggered. I'm able to do this outside of redux but not when I dispatch the action.

EDIT: the solution for me was to use my previous PodFile before upgrading, ios app is working now. see the PodFile that work for me bellow

I upgraded an RN app to 0.59.1 (it was at 0.57.8) using react-native upgrade, android version is working but for the ios version i'm stuck with pod install which trows this error:

[!] No podspec found for `FBLazyVector` in `../node_modules/react-native/Libraries/FBLazyVector almost all react-native dependencies are giving similar errors, i know that by commenting pods one by one and running pod install

here is my Podfile:

I am trying to run a unstoppable background service in react native which will continuously listen for messages via Socket.io from server.

For this I found several solutions with several problems

1. Use FCM

   The problem with method is that first I have to listen for FCM event than connect to my server and get the data(Messages + images + Videos). And I don't want to use firebase for my app as its expensive and don't want to store my user data (Mainly images) and handle user auth.

2. Use react-native-background-fetch

   This thing is pretty good but it only allow to run single job every 5 minutes and if your service is killed by android than you are gone

3. Use Headless JS

   To be honest I cannot understand its documentation

Please tell me what to s I am confused and amazed that there is no proper way to handle this TIA regards

I am trying to send data from server.js using express and node.js to my client-side which is in React Native, both sides work individually but aren't communicating with each other. I am fairly new to backend development so I am beginning to understand how it functions and how to implement required behaviors. Please can anyone help?

server.js

So, my app is already on Google Play and out of a sudden my social auth isn't working anymore. It works fine on debug and when I run --variant=release on the terminal, but it doesn't work when I download the apk from the store in internal testing. We've tested on several phones.

Email login works fine, only google auth doesnt work. Logcat doesn't show anything. I press the google button, the prompt opens, I select the user and nothing happens. Again, this only happens after I download from google play. What could it be?

We're using react-native-firebase and react-native-google-signin.

I have waste my entire week on this issue and I can't figure out a reason.

app/build.gradle

Hey I Have been trying to add @observer to my react component but this error occurs : Support for the experimental syntax 'decorators-legacy' isn't currently enabled here are the steps I have taken:

1.npm install mobx --save and npm i mobx mobx-react --save

1. tried using observable did not work

2. added

   [ require(‘@babel/plugin-proposal-decorators’).default, { legacy: true } ],

didn't work so i removed it

1. Created .babelrc in at the root directory and added

   { "presets": ["react-native"], "plugins": [ [ "@babel/plugin-proposal-decorators", { "legacy": true } ] ] }

and still not working

Editing:

I did what you just said and same error:

when I npm start -- --reset-cache, this appears on my terminal, maybe it might help:

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ':app:transformClassesAndResourcesWithProguardForDebug'.

  java.io.IOException: Can't write [/home/user/Desktop/pratap/react-projects/test/android/app/build/intermediates/transforms/proguard/debug/0.jar] (Can't read [/root/.gradle/caches/transforms-2/files-2.1/25cd9e2eed8b822cb2ad78849b3b28bf/jars/classes.jar(;;;;;;;**.class)] (Duplicate jar entry [android/support/v4/app/INotificationSideChannel$Stub$Proxy.class]))

I'm running react-native run-android command to run the app and getting above error I don't know what's going on with java.io.IOException

I have tried:

1. remove android > build folder and run again
2. run cd android && gradlew clean and then cd .. && react-native run-android
3. remove node_modules folder and reinstall it by npm install

screenshot -

GRADLE -

Both React Native Video and timer (used setInterval) are worked on foreground and timer is stopped when app is in the background. But still video plays in the background.

It means, when the application pauses, so do all setInterval's running and (and setTimeouts pending).

headlessJs api is available only for android to run the task in background.

If I use headlessJs, Isn't product pain for react native to run a timer?

There are some desired libraries,

react-native-background-job - Use headlessJs and work only in android.

react-native-background-task - Use headlessJs in android and ios uses a proxy around react-native-background-fetch library (Support only for a single task,The exact timings of task execution are unpredictable)

react-native-background-fetch

Can I use setInterval in the background service if I use those libraries?

Why only music player is working in the background?

I have a react-native application which includes react-native-background-task which uses react-native-background-fetch. I configured a job to console.log a simple message when it runs. I understand that the background fetch is not working on simulator, but you can test it by going into Debug -> Simulate background fetch. When I hit this, the app goes to background. I did not get any output. I have enabled background fetch in Info.plis and also the code returns status.available when I check with the library function. How do you actually test this?