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<h1><a href="../../../../index.html">All files</a> / <a href="index.html">src/lib/services/client-metrics</a> metrics-service-v2.ts</h1>
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<span class="cline-any cline-neutral"> </span></td><td class="text"><pre class="prettyprint lang-js">import { Logger } from '../../logger';
import { IUnleashConfig } from '../../server-impl';
import { IUnleashStores } from '../../types';
import { IClientApp } from '../../types/model';
import { ToggleMetricsSummary } from '../../types/models/metrics';
import {
IClientMetricsEnv,
IClientMetricsStoreV2,
} from '../../types/stores/client-metrics-store-v2';
import { clientMetricsSchema } from './schema';
import { hoursToMilliseconds, minutesToMilliseconds } from 'date-fns';
import { IFeatureToggleStore } from '../../types/stores/feature-toggle-store';
import EventEmitter from 'events';
import { CLIENT_METRICS } from '../../types/events';
export default class ClientMetricsServiceV2 {
private timer: NodeJS.Timeout;
private clientMetricsStoreV2: IClientMetricsStoreV2;
private featureToggleStore: IFeatureToggleStore;
private eventBus: EventEmitter;
private logger: Logger;
private bulkInterval: number;
constructor(
{
featureToggleStore,
clientMetricsStoreV2,
}: Pick<IUnleashStores, 'featureToggleStore' | 'clientMetricsStoreV2'>,
{ eventBus, getLogger }: Pick<IUnleashConfig, 'eventBus' | 'getLogger'>,
bulkInterval = minutesToMilliseconds(5),
) {
this.featureToggleStore = featureToggleStore;
this.clientMetricsStoreV2 = clientMetricsStoreV2;
this.eventBus = eventBus;
this.logger = getLogger(
'/services/client-metrics/client-metrics-service-v2.ts',
);
this.bulkInterval = bulkInterval;
this.timer = setInterval(<span class="fstat-no" title="function not covered" >async </span>() => {
<span class="cstat-no" title="statement not covered" > await this.clientMetricsStoreV2.clearMetrics(48);</span>
}, hoursToMilliseconds(12));
this.timer.unref();
}
async registerClientMetrics(
data: IClientApp,
clientIp: string,
): Promise<void> {
const value = await clientMetricsSchema.validateAsync(data);
const toggleNames = Object.keys(value.bucket.toggles);
if (toggleNames.length > 0) {
await this.featureToggleStore.setLastSeen(toggleNames);
}
this.logger.debug(`got metrics from ${clientIp}`);
const clientMetrics: IClientMetricsEnv[] = toggleNames
.map((name) => ({
featureName: name,
appName: value.appName,
environment: value.environment,
timestamp: value.bucket.start, //we might need to approximate between start/stop...
yes: value.bucket.toggles[name].yes,
no: value.bucket.toggles[name].no,
}))
.filter((item) => !(item.yes === 0 && item.no === 0));
// TODO: should we aggregate for a few minutes (bulkInterval) before pushing to DB?
await this.clientMetricsStoreV2.batchInsertMetrics(clientMetrics);
this.eventBus.emit(CLIENT_METRICS, value);
}
// Overview over usage last "hour" bucket and all applications using the toggle
async getFeatureToggleMetricsSummary(
featureName: string,
): Promise<ToggleMetricsSummary> {
const metrics =
await this.clientMetricsStoreV2.getMetricsForFeatureToggle(
featureName,
1,
);
const seenApplications =
await this.clientMetricsStoreV2.getSeenAppsForFeatureToggle(
featureName,
);
const groupedMetrics = metrics.reduce((prev, curr) => {
if (prev[curr.environment]) {
prev[curr.environment].yes += curr.yes;
prev[curr.environment].no += curr.no;
} else {
prev[curr.environment] = {
environment: curr.environment,
timestamp: curr.timestamp,
yes: curr.yes,
no: curr.no,
};
}
return prev;
}, {});
return {
featureName,
lastHourUsage: Object.values(groupedMetrics),
seenApplications,
};
}
async getClientMetricsForToggle(
toggleName: string,
hoursBack?: number,
): Promise<IClientMetricsEnv[]> {
return this.clientMetricsStoreV2.getMetricsForFeatureToggle(
toggleName,
hoursBack,
);
}
destroy(): void {
clearInterval(this.timer);
this.timer = null;
}
}
</pre></td></tr></table></pre>
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