feat: Enable configuration of evaluation periods in watchLambdaFunction (cdklabs#1182)

Author: badmintoncryer

API.md

@@ -33,11 +33,25 @@ export interface WatchLambdaFunctionOptions {
   readonly durationThresholdPercent?: number;
 
   /**
-   * Number of periods to evaluate for the alarms.
+   * Number of periods to evaluate for the errors alarms.
    *
    * @default 3
    */
-  readonly evaluationPeriods?: number;
+  readonly errorsEvaluationPeriods?: number;
+
+  /**
+   * Number of periods to evaluate for the throttles alarms.
+   *
+   * @default 3
+   */
+  readonly throttlesEvaluationPeriods?: number;
+
+  /**
+   * Number of periods to evaluate for the duration alarms.
+   *
+   * @default 3
+   */
+  readonly durationEvaluationPeriods?: number;
 }
 
 export interface WatchLambdaFunctionProps extends WatchLambdaFunctionOptions {
@@ -70,16 +84,16 @@ export class WatchLambdaFunction extends Construct {
 
     const { errorsMetric, errorsAlarm } = this.createErrorsMonitor(
       props.errorsPerMinuteThreshold,
-      props.evaluationPeriods,
+      props.errorsEvaluationPeriods,
     );
     const { throttlesMetric, throttlesAlarm } = this.createThrottlesMonitor(
       props.throttlesPerMinuteThreshold,
-      props.evaluationPeriods,
+      props.throttlesEvaluationPeriods,
     );
     const { durationMetric, durationAlarm } = this.createDurationMonitor(
       timeoutSec,
       props.durationThresholdPercent,
-      props.evaluationPeriods,
+      props.durationEvaluationPeriods,
     );
     const invocationsMetric = this.metrics.metricInvocations(
       this.fn.functionName,