expo: Location.startLocationUpdatesAsync - not working when app killed/closed

Environment

Expo CLI 2.7.0 environment info: System: OS: macOS 10.14.3 Shell: 3.2.57 - /bin/bash Binaries: Node: 11.8.0 - /usr/local/bin/node Yarn: 1.13.0 - /usr/local/bin/yarn npm: 6.5.0 - /usr/local/bin/npm Watchman: 4.9.0 - /usr/local/bin/watchman IDEs: Android Studio: 3.3 AI-182.5107.16.33.5199772 Xcode: 10.1/10B61 - /usr/bin/xcodebuild npmPackages: expo: ^32.0.0 => 32.0.2 react: 16.5.0 => 16.5.0 react-native: https://github.com/expo/react-native/archive/sdk-32.0.0.tar.gz => 0.57.1 react-navigation: ^2.18.2 => 2.18.2 npmGlobalPackages: expo-cli: 2.7.0

Steps to Reproduce

I am trying to post the device location to an API after successful login, it works as expected when the app is open/foreground/background but it does not work when the app is killed/closed

1. TaskManager.defineTask in the main app entry point in App.js in the global scope (outside of React.Component) :

TaskManager.defineTask(TASKS_GEOLOCATION_UPDATES, ({ data: { locations }, error }) => { AsyncStorage.getItem(‘access_token’).then( accessToken => { axios.put(${getApiUrl()}/geolocation/api/location, locations, accessToken); }) });

2.Location.startLocationUpdatesAsync in a ReactComponent after successful login :

    const options = { 
        accuracy: Location.Accuracy.Balanced, 
    }

    Location.startLocationUpdatesAsync('TASKS_GEOLOCATION_UPDATES', options)

3.Change GPS location using fake GPS

4.Check API logs to check if location updates have been posted

5.Works as expected when app is open/foreground/background

6.Does NOT work when the app is killed / closed on both IOS and Android :

• tested using Expo Client and stand alone testing builds for both Android and ios ( with Test Flight)

Expected Behavior

Expected that location updates would be sent even if the app is killed/closed . I understand that there are some limitations on Android but it does not work on ios either

Actual Behavior

No location updates are sent when the app is killed/closed Works as expected when app is open/foreground/background