Serbia 🇷🇸 CAD Registry

Name	rs-cad-registry
Country	Serbia
Registration prefix	YU-
Data source	https://apps.cad.gov.rs/ords/dcvws/regvaz/site/listAircraft
Format	JSON API (Oracle ORDS REST endpoint, fixed URL with query params)
Run frequency	Weekly (Tuesday, 10:10 UTC)
Depends on Mictronics for ICAO hex	Yes — this runner does not publish ICAO hex addresses; registrations are resolved via RediSearch against Mictronics records (idx:aircraft:mictronics). Must run after the mictronics runner.

How it works

A single GET request to the Serbia CAD ORDS REST endpoint (?...&limit=10000) returns the entire register in one response's items[] array — no pagination or index-page discovery needed. The endpoint's TLS certificate has an untrusted issuer chain, so requests are made with verify=False and urllib3's InsecureRequestWarning is disabled globally. Only items whose registarska_oznaka starts with YU- are kept. Aircraft type (vrsta_vazduhoplova) is decoded from Serbian via a lookup table, passing through unmapped values. As with pg-casapng-registry, registrations are resolved to icao_hex in batches of 100 via a RediSearch TagField query against the Mictronics index; unmatched registrations are skipped for this run. Every written record explicitly sets military: false — this register is exclusively civil, and the explicit value ensures a stale military: true flag (from Mictronics or a prior record on a reused hex) is corrected on re-registration.

Columns

Source column	Imported	Notes
registarska_oznaka	✅	YU- filter; used as the Mictronics lookup key
vrsta_vazduhoplova	✅	→ aircraft.type, decoded via lookup table (e.g. Avion → Airplane)
proizvođač	✅	→ aircraft.manufacturer
proizvođačka_oznaka	✅	→ aircraft.model
serijski_broj	✅	→ aircraft.serial_number
korisnik	✅	→ registrant.names[0]

See specs/data-dictionary.yaml (rs-cad-registry entry) for full column semantics and cross-source schema notes.

Example Output

Read back the merged record for a given ICAO hex (combines this runner's data with Mictronics and any other sources that have written to the same key):

docker run --rm --network host redis:latest redis-cli EVAL "$(cat ./shared/lua/merge_aircraft.lua)" 0 4C0E4D | python3 -m json.tool --sort-keys --no-ensure-ascii

{
    "aircraft": {
        "manufacturer": "TEXTRON AVIATION INC.",
        "manufacturer_model": "CESSNA 172 Skyhawk",
        "model": "CESSNA 172S",
        "serial_number": "172S11225",
        "type": "Airplane",
        "type_designator": "C172"
    },
    "data_sources": [
        "mictronics",
        "rs-cad-registry"
    ],
    "icao_hex": "4C0E4D",
    "military": false,
    "registrant": {
        "names": [
            "Vazduhoplovna akademija"
        ]
    },
    "registration": "YU-DSN"
}

docker run --rm --network host redis:latest redis-cli EVAL "$(cat ./shared/lua/merge_aircraft.lua)" 0 4C01F1 | python3 -m json.tool --sort-keys --no-ensure-ascii

{
    "aircraft": {
        "manufacturer": "The Boeing Company",
        "manufacturer_model": "BOEING 737-700",
        "model": "BOEING 737-700",
        "serial_number": "37592",
        "type": "Airplane",
        "type_designator": "B737"
    },
    "data_sources": [
        "mictronics",
        "rs-cad-registry"
    ],
    "icao_hex": "4C01F1",
    "military": false,
    "registrant": {
        "names": [
            "Skybridge International Balkan D.O.O."
        ]
    },
    "registration": "YU-APR"
}

Configuration

See Data Runners for the full list of environment variables every runner reads. This runner writes aircraft:registry:{icao_hex} with a fixed 14-day TTL (ENRICHMENT_TTL_SECONDS in shared/timing.py).

MQTT

Published once, at the end of a run, to SkyFollower/runner/rs-cad-registry/statistic/{name} (all retained):

Topic suffix	Value	Format
records_imported	e.g. 271	Integer as string
last_run_at	e.g. 2026-07-07T14:32:01.123456+00:00	ISO 8601 UTC
last_run_status	Success or Failure	String

Home Assistant autodiscovery configs are also published (retained) to homeassistant/sensor/SkyFollower_runner_rs_cad_registry_{name}/config for each of the three stats above.