Reactor

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

Woah. That's a lot. Let's break it down:

• Saga orchestrator A [saga][saga pattern] is a way of providing transaction-like semantics across multiple distinct resources.
• Dependency resolving reactor allows you to describe the dependencies between your saga steps using arguments which are converted into a [DAG][dag] and used to compute execution order.
• Concurrent unless otherwise specified reactor will run as many steps as possible concurrently whilst taking into account the results of the dependency resolution.
• Dynamic whilst you can define a reactor statically using our awesome DSL, you can also build workflows dynamically - and even add steps while the reactor is running.

saga pattern

Sponsors

Thanks to Alembic Pty Ltd for sponsoring a portion of this project's development.

Installation

The package can be installed by adding reactor to your list of dependencies in mix.exs:

def deps do
  [
    {:reactor, "~> 0.2.3"}
  ]
end

Documentation

Documentation for the latest release will be available on hexdocs and for the main branch.

Contributing

• To contribute updates, fixes or new features please fork and open a pull-request against main.
• Please use conventional commits - this allows us to dynamically generate the changelog.
• Feel free to ask any questions on the #reactor channel on the Ash Discord.

Licence

reactor is licensed under the terms of the MIT license. See the LICENSE file in this repository for details.

saga pattern [dag]: https://en.wikipedia.org/wiki/Directed_acyclic_graph