# `Cauldron2D.Ledger.Recorder`
[🔗](https://github.com/jaman/cauldron/blob/v0.1.3/cauldron_2d/lib/cauldron_2d/ledger/recorder.ex#L1)

One arena's scribe: subscribed to its world's events (`Cauldron2D.World.Events`), it
puts every `{tag, row}` — `:result` unless told otherwise — in the ledger under the
arena's name. It stops when the world does.

    Cauldron2D.Ledger.Recorder.start_link(world: world, arena: "Pit", ledger: Cauldron2D.Ledger)

## Options

  * `:world` — the world to record. Required
  * `:arena` — the name results are kept under. Required
  * `:ledger` — the ledger. Default `Cauldron2D.Ledger`
  * `:tag` — the events to keep. Default `:result`
  * `:on_result` — a function given each row after it is kept. Default none

# `child_spec`

Returns a specification to start this module under a supervisor.

See `Supervisor`.

# `start_link`

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

Start recording; see the module documentation for the options.

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