AWS Flow Framework for Ruby

The AWS Flow Framework is a library for creating background jobs and multistep workflows using Amazon Simple Workflow (Amazon SWF).

Basic Usage

To create a simple background job, first implement your logic for processing the job. Each job can be implemented as a method in a class. For example:

class MyJobs
  def hello input
    "Hello #{input[:name]}!"
  end
end

Next, use aws-flow-utils to generate a worker configuration:

aws-flow-utils -c local -n MyHelloWorldApp -a <your_ruby_file_name> -A <your_ruby_class_name>

Finally, start your workers with aws-flow-ruby:

aws-flow-ruby -f worker.json

That's it. You can now create background jobs using AWS::Flow.start and they will be executed on your workers:

require 'aws/decider'
AWS::Flow::start("MyJobs.hello", { name: "AWS Flow Framework" })

Results

You can also get the result of the background job if desired.

future = AWS::Flow::start("MyJobs.hello", { name: "AWS Flow Framework" }, {result:true})
# wait till ready
future.get

Running Workers in Amazon EC2

You can deploy your workers on AWS Elastic Beanstalk with just a few additional steps. See our developer guide for a step-by-step walkthrough.

Links

• Developer Guide
• API Reference
• Code Samples
• Amazon SWF Forums (requires an AWS account and login)
• Ruby Gems

License

Copyright 2015, Amazon Web Services, Inc. All Rights Reserved.

Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at:

• http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.