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Monthly Downloads: 1,717,101
Programming language: Elixir
License: Apache License 2.0
Latest version: v3.0.0

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README

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GenStateMachine

An idiomatic Elixir wrapper for gen_statem in OTP 20 (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 callback_mode/0.

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.

This wrapper also provides a OTP error translator for Logger, which is automatically added when the :gen_state_machine application is started. Optionally, you may add :gen_state_machine to :included_applications rather than :applications as indicated below if you do not want the translator to be added to Logger.

Installation

  1. Add gen_state_machine to your list of dependencies in mix.exs:
  def deps do
    [{:gen_state_machine, "~> 3.0"}]
  end
  1. Ensure gen_state_machine is added to your applications:
  def application do
    [applications: [:gen_state_machine]]
  end

Special Thanks

I would like to give special thanks to @fishcakez and @michalmuskala, who both provided invaluable feedback on this library!