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https://github.com/supabase/supabase.git
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Sean Oliver
c8e98cec0e
## Changes Introduces two new files in `packages/common`: - **`telemetry-first-touch-store.ts`** — a module-scoped singleton that holds first-touch attribution data (referrer, UTM params, page URL) in memory. Writes once on first load, cleared after the initial pageview event fires or on opt-out. No device storage involved. - **`useFirstTouchStore.tsx`** — a React hook that captures attribution data on initial page load and writes it into the store, gated on the `enabled` flag so it only runs where consent has been handled. Trade-off: data is lost on a hard reload before consent is granted — accepted edge case per GROWTH-656. Follows the same module-scope pattern already used by `posthogClient` and `consentState`. ## Testing - Verify first-touch data is captured on initial load and readable by `PageTelemetry` after consent - Verify no cookie is set before consent - Verify data is cleared after initial pageview fires GROWTH-656
28 lines
825 B
TypeScript
28 lines
825 B
TypeScript
/**
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* In-memory store for first-touch attribution data (referrer, UTMs, page URL).
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*
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* Captured before consent so no device storage is needed. Data is read once
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* by PageTelemetry after consent, then cleared. Lost on hard reload — accepted
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* trade-off (GROWTH-656).
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*/
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import type { getSharedTelemetryData } from './telemetry-utils'
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export type SharedTelemetryData = ReturnType<typeof getSharedTelemetryData>
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let firstTouchData: SharedTelemetryData | null = null
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/** Write-once — subsequent calls are no-ops. */
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export function setFirstTouchData(data: SharedTelemetryData): void {
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if (firstTouchData !== null) return
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firstTouchData = data
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}
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export function getFirstTouchData(): SharedTelemetryData | null {
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return firstTouchData
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}
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export function clearFirstTouchData(): void {
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firstTouchData = null
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}
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