Delayed::Job helpers

delayed_job_helpers.rb

module Delayed::Job::Ext
  module_function

  # Returns all failed jobs
  def failed_jobs
    Delayed::Job.where.not(:last_error => nil).order(:failed_at)
  end
  
  def failed_with(message)
    failed_jobs.
      where("last_error LIKE ?", "#{message}%")
  end
  
  # Outputs an overview of failed jobs
  def failed_overview
    failed_jobs.each { |job|
      handler = begin
        YAML.load(job.handler)
      rescue StandardError => error
        error
      end
      p [job.id, handler.class, job.last_error.first(150)]
    }
    nil
  end
  
  # Returns all jobs whose handler partially matches the given handler name
  def list_jobs(handler)
    Delayed::Job.where("handler LIKE ?", "%#{handler}%")
  end
  
  # Schedules job for retry
  def retry(job)
    job.update_columns(:attempts => job.attempts - 1, :failed_at => nil)
  end
end

honeybadger_checkin_job.rb

# frozen_string_literal: true
require "open-uri"

# Get warnings when your job queue is backed up or crashed or otherwise not working.
#
# This job notifies a Honeybadger CheckIn every hour as long as the background queue is running.
class HoneybadgerCheckinJob < ApplicationJob
  queue_as :default

  def perform
    perform_checkin
    enqueue_next_checkin
  rescue StandardError => error
    puts "Something went wrong when doing check in: #{error.inspect}"
  end

  private

  def enqueue_next_checkin
    HoneybadgerCheckinJob.set(:wait => 1.hour).perform_later
  end

  def perform_checkin
    open(checkin_url).read
  end

  def checkin_url
    ENV.fetch("HONEYBADGER_CHECK_IN_URL")
  end
end