Prometheus counters

counter-example.js

const Prometheus = require('prom-client');

const reportsStartedCounter = Prometheus.register.getSingleMetric(prometheusConfig.METRIC_NAMES.REPORTS_STARTED_FLOW_COUNTER) || 
    new Prometheus.Counter({
        name: prometheusConfig.METRIC_NAMES.REPORTS_STARTED_FLOW_COUNTER,
        labelNames: ['report_type', 'is_scheduled'],
        help: 'Reports that are actually being generated'
    });

function incReportsStartedCounter(reportType, isScheduled) {
    reportsStartedCounter.inc({ report_type: reportType, is_scheduled: isScheduled });
}