PgCacheOptions.requireInvalidation property

Pass true to refuse to cache at all when invalidation could not be established. Off by default.

Signature:

requireInvalidation?: boolean;

Remarks

Regardless of this option, start() does not resolve until the triggers and channel subscriptions are confirmed, so a row changed right after start-up is always noticed. This option covers what happens when that setup *fails* — or when no channels were registered, so nothing could ever invalidate the entries.

By default such a service still caches, and its entries then expire by ttl alone; the ttl defaults to 24 hours (DEFAULT_CACHE_TTL), so that is how stale a value can get. Pass true where that is the wrong trade and the service should run uncached instead, paying latency to avoid serving something nothing will ever invalidate.

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