# `Attesto.CodeStore.ETS`
[🔗](https://github.com/XukuLLC/attesto/blob/v0.13.0/lib/attesto/code_store/ets.ex#L1)

Single-node ETS implementation of `Attesto.CodeStore`.

Codes live in a public ETS table owned by a `GenServer` that sweeps
expired rows on a fixed interval. `take/1` uses `:ets.take/2`, which
fetches and deletes a row in one atomic step, so the single-use
guarantee holds against concurrent redemptions on a node. This is a
per-node store: a multi-node deployment MUST back `Attesto.CodeStore`
with a shared store (e.g. Postgres `DELETE ... RETURNING`) so a code
issued on one node can be redeemed (once) on another.

## Start options

  * `:sweep_interval_ms` (default `30_000`) - how often expired rows are
    bulk-deleted. Correctness does not depend on sweeping (`take/1`
    returns the row and `Attesto.AuthorizationCode` re-checks expiry);
    the sweeper only bounds table size.

## Wiring

    children = [Attesto.CodeStore.ETS]

then pass the module as the store:

    Attesto.AuthorizationCode.issue(Attesto.CodeStore.ETS, attrs)

# `reset`

```elixir
@spec reset() :: :ok
```

Clear every entry. Test-facing.

# `start_link`

```elixir
@spec start_link(keyword()) :: GenServer.on_start()
```

---

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