Interface Observable<AttributesTypes>

Since

1.3.0

interface Observable<
    AttributesTypes extends MetricAttributes = MetricAttributes,
> {
    addCallback(callback: ObservableCallback<AttributesTypes>): void;
    removeCallback(callback: ObservableCallback<AttributesTypes>): void;
}

Type Parameters

AttributesTypes extends MetricAttributes = MetricAttributes

Index

Methods

addCallback removeCallback

Methods

addCallback

addCallback(callback: ObservableCallback<AttributesTypes>): void
Sets up a function that will be called whenever a metric collection is initiated.

If the function is already in the list of callbacks for this Observable, the function is not added a second time.
Parameters
- callback: ObservableCallback<AttributesTypes>
Returns void
- Defined in metrics/Metric.ts:218

removeCallback

removeCallback(callback: ObservableCallback<AttributesTypes>): void
Removes a callback previously registered with Observable.addCallback.
Parameters
- callback: ObservableCallback<AttributesTypes>
Returns void
- Defined in metrics/Metric.ts:223