05a4194159
- Add `release_channel` to Settings (Rust + TypeScript) - Add channel selector in Settings panel (alpha/beta/stable) - Pass `release_channel` as PostHog person property on identify - Add `isFeatureEnabled()` helper: alpha always true, beta/stable use PostHog flags with hardcoded fallback defaults - Update `useFeatureFlag` to delegate to PostHog-backed evaluation (localStorage overrides still work for dev/QA) - Create ADR-0042 (supersedes ADR-0017) Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
23 lines
681 B
TypeScript
23 lines
681 B
TypeScript
/**
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* Feature flag hook backed by PostHog + release channels.
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*
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* Flags are resolved in order:
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* 1. localStorage override (`ff_<name>`) — for dev/QA testing
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* 2. PostHog feature flags (evaluated by release channel)
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* 3. Alpha channel always returns true (sees all features)
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*/
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import { isFeatureEnabled } from '../lib/telemetry'
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export type FeatureFlagName = 'example_flag'
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export function useFeatureFlag(flag: FeatureFlagName): boolean {
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try {
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const override = localStorage.getItem(`ff_${flag}`)
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if (override !== null) return override === 'true'
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} catch {
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// localStorage may be unavailable in some contexts
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}
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return isFeatureEnabled(flag)
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}
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