Sidekiq::Debouncer

Sidekiq extension that adds the ability to debounce job execution.

Worker will postpone its execution after wait time have elapsed since the last time it was invoked. Useful for implementing behavior that should only happen after the input has stopped arriving. For example: sending group email to the user after he stopped interacting with the application.

Installation

Add this line to your application's Gemfile:

gem 'sidekiq-debouncer'

And then execute:

$ bundle

Basic usage

In a worker, include Sidekiq::Debouncer module, specify debounce wait time (in seconds):

class MyWorker
  include Sidekiq::Worker
  include Sidekiq::Debouncer

  sidekiq_options(
    debounce: {
      time: 5 * 60
    }
  )

  def perform(group)
    group.each do
      # do some work with group
    end
  end
end

You can specify your own debounce method. In this case worker will be debounced if first argument matches.

class MyWorker
  include Sidekiq::Worker
  include Sidekiq::Debouncer

  sidekiq_options(
    debounce: {
      time: 5 * 60,
      by: -> (job_args) {
        job_args[0]
      }
    }
  )

  def perform(group)
    group.each do
      # do some work with group
    end
  end
end

You can also pass symbol as debounce_by matching class method.

class MyWorker
  include Sidekiq::Worker
  include Sidekiq::Debouncer

  sidekiq_options(
    debounce: {
      time: 5 * 60,
      by: :debounce_method
    }
  )

  def self.debounce_method(job_args)
    job_args[0]
  end

  def perform(group)
    group.each do
      # do some work with group
    end
  end
end

In the application, call MyWorker.debounce(...). Everytime you call this function, MyWorker's execution will be postponed by 5 minutes. After that time MyWorker will receive a method call perform with an array of arguments that were provided to the MyWorker.debounce(...).

License

MIT Licensed. See LICENSE.txt for details.