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feat(nx-dev): allow sampling rate to be configured through env var (#30193)

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The current sample rate for Grafana Faro is the default 100% and is
currently around $200 for the month. We want to be able to make changes
to it without needing code changes. Once this PR is merged, we can just
update the env var, and then redeploy.
This commit is contained in:
Jack Hsu 2025-02-26 15:46:35 -05:00 committed by GitHub
parent 0ae4925e43
commit 321a63aac3
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1 changed files with 9 additions and 0 deletions
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9
nx-dev/nx-dev/lib/components/frontend-observability.tsx
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@ -2,6 +2,12 @@
import { useEffect, useRef } from 'react';
import { getWebInstrumentations, initializeFaro } from '@grafana/faro-web-sdk';
const DEFAULT_SAMPLE_RATE = 0.5;
let samplingRate = process.env.NEXT_PUBLIC_FARO_SAMPLING_RATE
? parseFloat(process.env.NEXT_PUBLIC_FARO_SAMPLING_RATE)
: DEFAULT_SAMPLE_RATE;
if (isNaN(samplingRate) || samplingRate > 1) samplingRate = DEFAULT_SAMPLE_RATE;
export function FrontendObservability() {
const initialized = useRef(false);
useEffect(() => {
@ -24,6 +30,9 @@ export function FrontendObservability() {
version,
environment,
},
sessionTracking: {
samplingRate,
},
instrumentations: [...getWebInstrumentations()],
});
}, []);