Get last value of fetched coinsupply API endpoint from DB if cache is empty #3134
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Motivation
coinsupply
API endpoint returns 0 supply for sometime after restart of the application because it retrieved from ETS (in-memory cache), which is cleared on application restart.Changelog
In order to provide uninterrupted service for
coinsupply
API endpoint, it is suggested to store last fetched value on cache update for this counter in the DB. And if cache is empty (for instance, on application restart), get that value from DB.Checklist for your Pull Request (PR)
CHANGELOG.md
with this PRmaster
in the Version column. Changes will be reflected in this table: https://docs.blockscout.com/for-developers/information-and-settings/env-variables.