# `DripDrop.Policy.RateLimit.Postgres`
[🔗](https://github.com/agoodway/dripdrop/blob/v0.1.0/lib/dripdrop/policy/rate_limit/postgres.ex#L1)

Postgres-backed rate-limit backend using advisory transaction locks.

The backend counts recent sent events and in-flight executions inside the
configured window, then returns a deferral boundary when a bucket is full.

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*Consult [api-reference.md](api-reference.md) for complete listing*