Code RoomThird-party API quota exhausted
MediumPrep Room Coding #2454

Third-party API quota exhausted

On-callReliability & on-callMid–Senior~30 min

Your delivery app's address-autocomplete and route features go partly dark at 14:20. Dashboards: calls to the Google Maps Platform API start returning HTTP 403 with 'OVER_QUERY_LIMIT' / quota exceeded; the affected features error at ~70%; your own infra is healthy. Recent context: marketing ran a flash promo this morning that ~doubled active users, and last week an engineer removed a client-side autocomplete debounce to 'make typing feel snappier.' Daily quota is a fixed per-project cap. How do you triage and mitigate?

What a strong answer looks like

Stop the bleeding first (mitigate), then form hypotheses from real signals. Separate root cause from symptom, communicate status as you go, and close with what prevents a repeat.

0:00 of about 30 min
Which questions mattered is sealed until you submit. Telling you now would just be handing over the edge cases.