GenStateMachine

An idiomatic Elixir wrapper for gen_statem in OTP 19 (and above).

Full documentation is available here.

You can find the package on Hex here.

One important difference between gen_statem and this wrapper is that you declare your callback mode as part of use GenStateMachine in this wrapper, rather than returning it from your init/1 and code_change/4. You can still, however, switch callback modes in code_change/4 by returning a callback mode.

Other than that (and the usual automatically-defined default callbacks as a result of use-ing GenStateMachine), this wrapper does not make any functional alterations.

Installation

1. Add gen_state_machine to your list of dependencies in mix.exs:

```elixir
def deps do
  [{:gen_state_machine, "~> 0.0.2"}]
end
```

1. Ensure gen_state_machine is added to your applications:

```elixir
def application do
  [applications: [:gen_state_machine]]
end
```