Stop sidekiq worker when user logs out

问题

I only want to perform the background job when the user is logged in. When the user is logged in, I start a worker:

  Warden::Manager.after_authentication do |user,auth,opts|
    ImapWorker.perform_async(user.id)
  end

All my ImapWorker does is use ruby's Net::Imap API to wait for new emails to come in from a remote email server. It uses Imap's idle functionality to wait for new events.

class ImapWorker
  include Sidekiq::Worker

  def perform(user_id)
    user = User.find(user_id)
    imap = Net::IMAP.new('imap.gmail.com',993,true)
    imap.login(user.email, user.password)
    imap.select('INBOX')

    imap.add_response_handler do |resp|
      if resp.kind_of?(Net::IMAP::UntaggedResponse) and resp.name == "EXISTS"
        check_email
      end
    end

    imap.idle
  end
end

Now when my user logs out, I want to end the worker. I know in devise, I can hook into the log out functionality as such:

Warden::Manager.before_logout do |user,auth,opts|
    ...
end  

But how exactly do I stop the sidekiq worker?

回答1:

require 'sidekiq/api'; Sidekiq::ProcessSet.new.each(&:stop!)

来源：https://stackoverflow.com/questions/39459985/stop-sidekiq-worker-when-user-logs-out