pull space-weather events (cme, flares, geomagnetic storms) from the nasa donki api
domain: api.nasa.gov · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
Obtain an api.nasa.gov API key.
Call a specific event endpoint such as GET https://api.nasa.gov/DONKI/CME?startDate=YYYY-MM-DD&endDate=YYYY-MM-DD&api_key=KEY, or the equivalent path for FLR, GST, SEP, IPS, MPC, or RBE event types.
Alternatively call GET https://api.nasa.gov/DONKI/notifications?startDate=...&endDate=...&type=all&api_key=KEY for a unified feed across types (type can be all, FLR, SEP, CME, IPS, MPC, GST, RBE, or report).
Omit startDate/endDate to fall back to the default 7-day lookback window ending 'today' (UT).
Parse per-type fields (e.g. CME responses include cmeAnalyses with speed/type/latitude/longitude; GST includes kpIndex records), which differ by event class.
Known gotchas
Requested date ranges greater than 30 days are silently clamped to (endDate - 30) through endDate rather than erroring.
Each DONKI event type has a distinct JSON schema; code written for CME won't parse FLR or GST responses without changes.
All dates are UT, and DEMO_KEY shares the same low rate limit as other api.nasa.gov endpoints.
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