Attaching a global context to the application install event on iOS

For engineers
1

Hello!

We are trying to implement Snowplow tracker on both iOS and Android and are getting different behavior with identical implementations.

We want to send a custom context along with application_install event. After initializing the tracker we call:

tracker.globalContexts?.add(
    tag: userPreferencesContextKey,
    contextGenerator: GlobalContext(staticContexts: [
        SelfDescribingJson(
            schema: globalContextSchema,
            andData: getUserProperties().mapValuesToSwiftAny()
        )
    ])
)

On iOS the custom context is only sent with the next event. However, on Android it is sent along with the application_install. Is there a way we can match this behavior on iOS?

2

Could you try passing in the global context using GlobalContextsConfiguration when calling Snowplow.createTracker? There is an example at the top of the page here.

I think the problem here is that the install event is tracked too early on iOS before the tracker.globalContexts?.add() is called. Setting the global context in the createTracker() call could help.

1 Like
3

Yep, it works! Thanks!