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Central - data hub spine. Adapters -> NATS/JetStream -> archive.
- Python 89.1%
- HTML 9.3%
- CSS 1.3%
- PLpgSQL 0.3%
42d5faa80c
Fourth CENTRAL_TRAFFIC event adapter. Complements wzdx (federal work zones) and
state_511_atis (state-DOT reports) with TomTom commercial vehicle-telematics
coverage. Polls the Orbis incidentDetails endpoint per metro bbox, emits one
event per incident to central.traffic.incident.<state>. Ships disabled.
central-supervisor + central-gui restart only -- adapter row on the EXISTING
CENTRAL_TRAFFIC stream, so NO archive restart and no new stream/dependency.
Reuses the existing "tomtom" api key.
- Bbox limit refutation: incidentDetails rejects bbox > 10,000 km^2, so coverage
is per-metro bboxes (Treasure Valley / Boise, 8,601 km^2), NOT statewide. One
bbox @ 1800s = 1,440 calls/mo = 58% of the 2,500/mo free-tier cap. Expansion
rows must respect N*(43200/cadence_min) <= 2500.
- category="incident.tomtom_incidents" -> GUI event_type "incident" (shared with
state_511_atis; cross-source overlap is by design = additive coverage, distinct
dedup ids + categories, no Central-side cross-source dedup).
- Severity from magnitudeOfDelay (0->1,1->1,2->2,3->3,4->4; 4=closure). Never None.
- geo.geometry carries TomTom's Point/LineString directly (already lon/lat GeoJSON;
the v0.9.3 framework renders the affected road as a polyline). No decode needed.
- Dedup id <state_code>:tomtom:<tomtom_id> (upstream id stable across polls,
verified 154/154 over 60s). Inherits the v0.9.1 dedup mixin.
- aiohttp params= URL-encodes the fields{} GraphQL braces (no curl-glob issue);
key redacted from logs; poll skips cleanly without a key.
Full suite: 809 passed, 1 skipped (central and unprivileged zvx, 3x each).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Central
Central is the data hub spine for the infrastructure. Adapters normalize upstream sources into a canonical event shape, publish CloudEvents to NATS/JetStream, and archive to TimescaleDB for historical query. Single-LXC deployment.
Status
Phase 0 — scaffold. Not yet operational.
Architecture
- Python 3.12 (uv-managed)
- NATS + JetStream for live event bus
- TimescaleDB + PostGIS for archive and geospatial query
- One supervisor process managing adapter lifecycle
- One archive consumer process persisting events to TimescaleDB
- Both processes systemd-managed
Testing
See docs/test-database.md for test database setup.
License
MIT. See LICENSE.