Offline functionality

[bandersen22000]

Is your feature request related to a problem? Please describe.
In developing React Native applications, ensuring comprehensive telemetry is crucial for monitoring and improving user experience. A significant challenge arises when users operate the app in offline scenarios, leading to potential loss of telemetry data due to the current library's lack of built-in offline support. This limitation hinders the ability to capture user interactions and issues that occur without an active internet connection.

Describe the solution you'd like
I propose the integration of an offline storage mechanism within the @microsoft/applicationinsights-react-native library.

Additional context
What will happen today with the current implementation when there is no connection ? Does it have a buffer ?

[MSNev]

Have you tried the Offline Channel, it doesn't need to be integrated by default via this extension (as it is it's own extension).

But we could update the default readme to recommend it's usage?

[vyrotek]

Offline Channel only supports IndexedDb, LocalStorage, or SessionStorage. All which are unavailable with React Native. It would be nice if we could provide a custom storage provider.

[MSNev]

Yes, we have an internal discussion going on about "something" like this to also support running in workers.

@Karlie-777 will own this