AI-Engineer 0ac10d8a76 feat: add Prometheus metrics instrumentation to VIN Decoder API ...

- Add src/metrics.js: zero-dep Prometheus text exposition for
  api_requests_total (counter), api_response_duration_seconds (histogram),
  api_data_freshness_seconds (gauge)
- Instrument src/server.js with onResponse hook recording every request;
  add GET /metrics endpoint (no proxy-secret required)
- Update src/nhtsa.js to call recordNhtsaCall() after every successful
  upstream NHTSA vPIC fetch (drives freshness gauge)
- Add src/tests/metrics.test.js: unit tests asserting /metrics returns
  text with Content-Type text/plain, all three metric names present,
  HELP/TYPE lines correct, counters increment, freshness is near-zero
- Add flux/vin-decoder/servicemonitor.yaml: ServiceMonitor for Prometheus
  auto-discovery of the /metrics endpoint
- Update flux/vin-decoder/kustomization.yaml to include servicemonitor.yaml

Closes leeworks-agents/api-company#129

2026-05-31 20:10:14 +00:00

..

tests

feat: add Prometheus metrics instrumentation to VIN Decoder API

2026-05-31 20:10:14 +00:00

cache.js

feat: scaffold vin-decoder repo — server, data layer, Flux manifests, CI

2026-05-30 20:08:47 +00:00

db.js

feat: scaffold vin-decoder repo — server, data layer, Flux manifests, CI

2026-05-30 20:08:47 +00:00

metrics.js

feat: add Prometheus metrics instrumentation to VIN Decoder API

2026-05-31 20:10:14 +00:00

nhtsa.js

feat: add Prometheus metrics instrumentation to VIN Decoder API

2026-05-31 20:10:14 +00:00

server.js

feat: add Prometheus metrics instrumentation to VIN Decoder API

2026-05-31 20:10:14 +00:00