Reactor is a dynamic, concurrent, dependency resolving saga orchestrator.

Usage

You can construct a reactor using the Reactor Spark DSL:

defmodule HelloWorldReactor do
  @moduledoc false
  use Reactor

  input :whom

  step :greet, Greeter do
    argument :whom, input(:whom)
  end

  return :greet
end

iex> Reactor.run(HelloWorldReactor, %{whom: "Dear Reader"})
{:ok, "Hello, Dear Reader!"}

or you can build it programmatically:

iex> reactor = Builder.new()
...> {:ok, reactor} = Builder.add_input(reactor, :whom)
...> {:ok, reactor} = Builder.add_step(reactor, :greet, Greeter, whom: {:input, :whom})
...> {:ok, reactor} = Builder.return(reactor, :greet)
...> Reactor.run(reactor, %{whom: nil})
{:ok, "Hello, World!"}

Options

• :extensions (list of module that adopts Spark.Dsl.Extension) - A list of DSL extensions to add to the Spark.Dsl

• :otp_app (atom/0) - The otp_app to use for any application configurable options

• :fragments (list of module/0) - Fragments to include in the Elixir.Spark.Dsl. See the fragments guide for more.