File: README — Documentation for sqewer (5.0.0)

An AWS SQS-based queue processor, for highly distributed job engines.

The shortest introduction possible

In your environment, set SQS_QUEUE_URL. Then, define a job class:

class MyJob
  def run
   File.open('output', 'a') { ... }
  end
end

Then submit the job:

Sqewer.submit!(MyJob.new)

and to start processing, in your commandline handler:

#!/usr/bin/env ruby
require 'my_applicaion'
Sqewer::CLI.run

To add arguments to the job

class JobWithArgs
  include Sqewer::SimpleJob
  attr_accessor :times

  def run
    ...
  end
end
...
Sqewer.submit!(JobWithArgs.new(times: 20))

Submitting jobs from other jobs (the job will go to the same queue the parent job came from):

class MyJob
  def run(worker_context)
    ...
    worker_context.submit!(CleanupJob.new)
  end
end

The messages will only be deleted from SQS once the job execution completes without raising an exception.

Ruby 2.1+, version 2 of the AWS SDK.

For more detailed usage information, see DETAILS.md

Please see FAQ.md. This might explain some decisions behind the library in greater detail.

Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet.
Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it.
Fork the project.
Start a feature/bugfix branch.
Commit and push until you are happy with your contribution.
Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
Run your tests against a real SQS queue. You will need your tests to have permissions to create and delete SQS queues.
Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.