#!/usr/bin/env python

# -*- coding: utf-8 -*-

#

# Example usage of the OpenSky Network API client.

#

# Retrieves all aircraft currently over Germany and prints a summary,

# then shows which of your own receivers are currently active.

#

# Author: Jannis Lübbe <luebbe@opensky-network.org>

# URL: http://github.com/openskynetwork/opensky-api

#

import os

from opensky_api import OpenSkyApi, TokenManager

# Use credentials file if available, otherwise fall back to anonymous access.

# Anonymous access has reduced rate limits and no access to own sensor data.

_CREDENTIALS_PATH = "credentials.json"

def fmt_alt(value):

"""Format an altitude value, omitting the unit if the value is None."""

return f"{value}m" if value is not None else "None"

def main():

if os.path.exists(_CREDENTIALS_PATH):

tm = TokenManager.from_json_file(_CREDENTIALS_PATH)

print("Authenticated with credentials file.")

else:

tm = None

print("No credentials file found, using anonymous access (reduced rate limits).")

with OpenSkyApi(token_manager=tm) as api:

# Get all aircraft currently over Germany (bounding box)

print("\n--- Aircraft over Germany ---")

states = api.get_states(bbox=(47.2, 55.1, 5.9, 15.1))

if states and states.states:

for s in states.states:

print(

f"{s.icao24:8s} {s.callsign or '?':10s} {s.origin_country:20s} "

f"baro={fmt_alt(s.baro_altitude)} "

f"geo={fmt_alt(s.geo_altitude)} "

f"{'on ground' if s.on_ground else 'airborne'}"

)

else:

print("No states received.")

# Show which own receivers are currently active and delivering data.

# Requires authentication.

if tm is not None:

print("\n--- Own receivers ---")

my_states = api.get_my_states()

if my_states and my_states.states:

active_serials = set()

for s in my_states.states:

if s.sensors:

active_serials.update(s.sensors)

if active_serials:

print(f"Active serials providing data: {sorted(active_serials)}")

else:

print("No sensor information available in state vectors.")

else:

print("No states received from own receivers.")

if __name__ == "__main__":

main()