worldmonitor patterns: circuit breaker + refresh scheduler + progressive hydration - #14
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…ive hydration - TypeScript CircuitBreaker (dashboard/lib/core/circuit-breaker.ts) with cooldown, SWR, LRU eviction, IndexedDB persistence (16 tests) - Python CircuitBreaker (backend/utils/circuit_breaker.py) Redis-backed for arq workers (9 tests) - RefreshScheduler (dashboard/lib/core/refresh-scheduler.ts) merged poll loop + scheduler with dedup, backoff, visibility awareness (13 tests) - Wire breakers into 4 arq jobs: review_poll, competitor_watch, menu_sync, appointment_followup - Wire RefreshScheduler into DashboardShell via React context - Wire breakers into dashboard api.get() per-path - Progressive hydration: lazy-load CompetitorTab via React.lazy + Suspense - All 59 dashboard + 246 backend tests pass, Next.js build green
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Extract infrastructure patterns from worldmonitor into LocalMate: a framework-agnostic Circuit Breaker (TypeScript + Python/Redis), a Refresh Scheduler (merged poll loop + scheduler), wiring into all 4 arq jobs + dashboard API + dashboard pages, and progressive hydration via React.lazy.
Changes
dashboard/lib/core/circuit-breaker.ts. Cooldown after N consecutive failures, stale-while-revalidate with background refresh, LRU eviction (256 entries default), optional IndexedDB persistence. Framework-agnostic with SSR safety. Global registry viacreateCircuitBreaker().backend/utils/circuit_breaker.py. Redis-backed for stateless arq workers. Failure counts, cooldown timestamps, and cached responses all carry TTLs for auto-cleanup.execute()returns cached value during cooldown, fires background SWR refresh.dashboard/lib/core/refresh-scheduler.ts. Merges worldmonitor's Smart Poll Loop + Refresh Scheduler. Dedup (inFlight set), pause-when-hidden (visibility API), exponential backoff capped at 2x. SSR-safe.CircuitBreaker.execute().@retry_on_failurestays as inner layer. Each job accepts optionalredis—Nonefallback skips breaker protection.DashboardShellcreatesRefreshSchedulervia React context. Review queue polls every 60s, SEO rankings every 300s, billing usage every 120s.api.get()wraps each request in a per-path circuit breaker (30s cache TTL).React.lazy+<Suspense>.Testing
TypeScript — dashboard unit tests
circuit-breaker.test.ts(16 tests),refresh-scheduler.test.ts(13 tests)Python — backend unit tests
test_circuit_breaker.py(9 tests)Build
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(aside)to your comment to have me ignore it.