constructor()

in infra/ecs-service/construct/ecs-monitor-const.ts [26:77]
45 lines of code
2 McCabe index (conditional complexity)

    constructor(scope: cdk.Construct, id: string, props: EcsMonitorProps) {
        super(scope, id, props);

        this.props = props;

        const dashboardName = 'Dashboard';
        this.dashboard = new cloudwatch.Dashboard(this, dashboardName, {
            dashboardName: `${props.stackName}-${dashboardName}`,
        });

        this.addWidgets(new cloudwatch.SingleValueWidget({
            title: `ALB-Request-Monitor`,
            metrics: [
                props.alb.metricRequestCount(), 
                props.alb.metricHttpCodeTarget(lb2.HttpCodeTarget.TARGET_2XX_COUNT),
                props.alb.metricHttpCodeTarget(lb2.HttpCodeTarget.TARGET_3XX_COUNT),
                props.alb.metricHttpCodeTarget(lb2.HttpCodeTarget.TARGET_4XX_COUNT),
                props.alb.metricHttpCodeTarget(lb2.HttpCodeTarget.TARGET_5XX_COUNT),
            ],
            width: 24,
            height: 3
        }));

        const baseName = 'ALB-Request';
        const alarm = this.createMetricAlarm(baseName, props.alb.metricRequestCount())
        this.addWidgets(new cloudwatch.AlarmWidget({
            title: baseName,
            alarm: alarm,
            width: 24,
            height: 6
        }));

        this.addWidgets(
            this.createWidget('ALB-Response', [props.alb.metricTargetResponseTime()], 24),
        )

        this.addWidgets(
            this.createWidget('ECS-CPU', [props.ecsSrevice.metricCpuUtilization()], 12),
            this.createWidget('ECS-Memory', [props.ecsSrevice.metricMemoryUtilization()], 12),
        )

        if (props.table != undefined) {
            this.addWidgets(
                this.createWidget('DDB-Read', [props.table.metricConsumedReadCapacityUnits()], 12),
                this.createWidget('DDB-Write', [props.table.metricConsumedWriteCapacityUnits()], 12),
                this.createWidget('DDB-Latency', [props.table.metricSuccessfulRequestLatency({dimensionsMap: {Operation: 'Scan'}}), 
                                                    props.table.metricSuccessfulRequestLatency({dimensionsMap: {Operation: 'PutItem'}})], 12),
                this.createWidget('DDB-Throttled', [props.table.metric('WriteThrottleEvents', {statistic: 'Sum', unit: cloudwatch.Unit.COUNT}),
                                                    props.table.metric('ReadThrottleEvents', {statistic: 'Sum', unit: cloudwatch.Unit.COUNT})], 12),
            )
        }
    }