# `Ash.Resource.Actions.Implementation.Builtins`
[🔗](https://github.com/ash-project/ash/blob/v3.34.4/lib/ash/resource/actions/action/builtins.ex#L5)

Builtin generic action implementations

# `reactor`

```elixir
@spec reactor(reactor :: module(), opts :: Keyword.t()) ::
  {Ash.Resource.Actions.RunReactor, Keyword.t()}
```

Runs the given `Reactor` as the generic action.

The action's arguments are passed as the Reactor's inputs, and the action's context
(actor, tenant, etc.) as its context. Every Reactor input needs a corresponding action
argument.

Any options are passed to `Reactor.run/4`. If the action sets `transaction? true`, the
Reactor is run synchronously regardless of the `async?` option.

## Examples

    run reactor(MyApp.Reactors.CreatePost)
    run reactor(MyApp.Reactors.CreatePost, max_concurrency: 4)

---

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