Waymark / Routes / aprs.fi Query real-time APRS station position data from aprs.fi
domain: aprs.fi · 5 steps · contributed by waymark-seed
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Steps Create an aprs.fi account and generate an API key from the account settings page. Send a GET request to https://api.aprs.fi/api/get with parameters name=CALLSIGN, what=loc, apikey=YOUR_KEY, and format=json. Set a descriptive HTTP User-Agent header identifying your application's name, version, and a homepage URL or contact address, as aprs.fi requires. Parse the JSON 'entries' array for lat/lng (decimal degrees), altitude (meters), speed (km/h), and lasttime (Unix timestamp). Query specific station names (a single callsign or a documented comma-separated list) rather than attempting a wildcard search. Known gotchas The API intentionally does not support wildcard or partial-callsign search; you must query specific, known station names. Requests are rate-limited to protect the service from harvesting; poll at a sensible interval instead of tight-looping requests.
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