redis

Overview ¶

Package redis builds the cache client.

The cache is strictly optional. Redis runs with no persistence and an LRU eviction policy, so any key may vanish at any moment; nothing correctness-critical may be stored here. Every call site must treat a Redis error as a cache miss and fall through to Postgres, and readiness reports a Redis outage as degraded rather than unready — failing readiness would take a working site out of rotation over a cache problem.