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Home > @loopback/core > LifeCycleObserverRegistry > invokeObserver
LifeCycleObserverRegistry.invokeObserver() method
Invoke an observer for the given event
Signature:
protected invokeObserver(observer: LifeCycleObserver, event: keyof LifeCycleObserver): Promise<void>;
Parameters
| Parameter | Type | Description |
|---|---|---|
| observer | LifeCycleObserver | A life cycle observer |
| event | keyof LifeCycleObserver | Event name |
Returns:
Promise<void>