52 lines
1.1 KiB
JavaScript
52 lines
1.1 KiB
JavaScript
// @flow
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import ddMetrics from "datadog-metrics";
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class Metrics {
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enabled: boolean = !!process.env.DD_API_KEY;
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constructor() {
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if (!this.enabled) {
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return;
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}
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ddMetrics.init({
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apiKey: process.env.DD_API_KEY,
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prefix: "outline.",
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defaultTags: [`env:${process.env.DD_ENV || process.env.NODE_ENV}`],
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});
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}
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gauge(key: string, value: number, tags?: string[]): void {
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if (!this.enabled) {
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return;
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}
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return ddMetrics.gauge(key, value, tags);
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}
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gaugePerInstance(key: string, value: number, tags?: string[] = []): void {
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if (!this.enabled) {
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return;
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}
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const instanceId = process.env.INSTANCE_ID || process.env.HEROKU_DYNO_ID;
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if (!instanceId) {
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throw new Error(
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"INSTANCE_ID or HEROKU_DYNO_ID must be set when using DataDog"
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);
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}
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return ddMetrics.gauge(key, value, [...tags, `instance:${instanceId}`]);
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}
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increment(key: string, tags?: { [string]: string }): void {
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if (!this.enabled) {
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return;
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}
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return ddMetrics.increment(key, tags);
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}
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}
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export default new Metrics();
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