changes property

@override Stream<Set<String>> get changes

Active entitlement identifiers, emitting on every change.

A stream, not a one-shot check, because entitlements change mid session: a purchase completes, a restore lands, a subscription lapses, a renewal fails. A bool read once at startup goes stale silently, and the bug shows up as a paying user seeing a paywall.

Implementation

@override
Stream<Set<String>> get changes => _controller.stream;