# Job Callbacks

The Jobly::Job class supports these callback methods:

Method	Description
`before`	Executes before the job starts
`on_skip`	Executes if `skip_job` was called from the `before` block
`on_success`	Executes after the job finishes, and only if it succeeds
`on_failure`	Executes after the job finishes, and only if it fails
`after`	Executes after the job finishes, regardless of success or failure

Each callback method can either be a block or a symbol that points to a local method. When using a block, you will have the params variable available, with all the parameters sent to the job.

jobs/greet.rb
class Greet < Jobly::Job
  before do
    logger.info "Starting with #{params[:message]}"
  end

  after :reboot_computer

  def execute(message: "Hello")
    puts message
  end

  def reboot_computer
    system "reboot"
  end
end

In order to conditionally skip a job from its before block, you can call skip_job. This will avoid running the job, and will execute the on_skip action and the after action, if present.