fix(wingbits): add 5-minute backoff on /v1/flights failures#459
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When OpenSky is down, every theater posture poll falls through to Wingbits POST /v1/flights. Failed responses (429, 500, etc.) were not cached, causing retry-on-every-poll (~3 req/min) and sustained 429s. Add module-level backoff: any non-ok response or network error skips Wingbits calls for 5 minutes, falling through to stale/backup cache. Success resets the timer. Reduces Wingbits API load ~15x during OpenSky outages.
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facusturla
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Feb 27, 2026
…oala73#459) When OpenSky is down, every theater posture poll falls through to Wingbits POST /v1/flights. Failed responses (429, 500, etc.) were not cached, causing retry-on-every-poll (~3 req/min) and sustained 429s. Add module-level backoff: any non-ok response or network error skips Wingbits calls for 5 minutes, falling through to stale/backup cache. Success resets the timer. Reduces Wingbits API load ~15x during OpenSky outages.
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Summary
/v1/flightsreturns non-ok (429, 500, etc.) or network errorContext
Wingbits dashboard showed sustained POST 429s during an OpenSky outage. Root cause: failed responses weren't cached by
cachedFetchJson, so every frontend poll triggered a fresh upstream attempt.Test plan
npx tsc --noEmit— passes