[android-components](../../../index.md) / [mozilla.components.browser.state.action](../../index.md) / [EngineAction](../index.md) / [UpdateEngineSessionObserverAction](index.md) / [engineSessionObserver](./engine-session-observer.md)

# engineSessionObserver

`val engineSessionObserver: `[`Observer`](../../../mozilla.components.concept.engine/-engine-session/-observer/index.md) [(source)](https://github.com/mozilla-mobile/android-components/blob/master/components/browser/state/src/main/java/mozilla/components/browser/state/action/BrowserAction.kt#L570)