injectChannelEffect

Side-effect counterpart to injectChannel. Instead of returning a signal of buffered events, it invokes onEvent once per event for as long as the owning component / service is alive — the idiomatic place for analytics, logging, and other fire-and-forget side effects.

injectChannelEffect(this.stream, ["lifecycle", "tools"], {
  replay: false,
  onEvent: (event) => sendAnalytics(event),
  onError: (error) => logger.error(error),
});

Reactive channels / target / enabled signals re-bind the subscription when they change. The underlying subscription is shared (ref-counted) with any matching injectChannel consumer. replay defaults to false (live-only); events buffered before the effect attaches are not re-delivered.

Must be called from an injection context (component / directive / service field initializer, or runInInjectionContext(...)).