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The account_snapshot cache fed /networth, /networth/history, and
/scenarios/{id}/progress. No CronJob populated it, so the cache had
drifted ~18 days behind the wealthfolio_sync mirror (last refresh
2026-05-09 via manual kubectl exec; Grafana reads wf_sync directly
and stayed fresh).
Switch to lazy refresh on read: each request to those endpoints now
checks MAX(account_snapshot.snapshot_date) — if it's older than
NETWORTH_CACHE_TTL_DAYS (default 1), pull fresh rows from wf_sync via
read_account_snapshots_from_pg and upsert. Idempotent under
concurrency (existing ON CONFLICT DO UPDATE).
Plumbing:
- Add get_wf_sync_session dependency that yields None when the wf_sync
factory isn't wired (keeps existing tests' behaviour: no refresh
attempted, they continue to seed account_snapshot directly).
- Wire wf_sync engine + session_factory in app.lifespan when
WEALTHFOLIO_SYNC_DB_CONNECTION_STRING is set.
- Centralise the staleness check in refresh_account_snapshots_if_stale.
Tests:
- 271 existing tests still green.
- Three new tests in test_api_networth_refresh.py covering: empty cache
triggers refresh, stale cache triggers refresh, fresh cache skips
refresh (asserts the wf_sync value is NOT served).
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|---|---|---|
| .. | ||
| __init__.py | ||
| hmrc.py | ||
| payslip.py | ||
| wealthfolio.py | ||
| wealthfolio_pg.py | ||