IMAP Ruby idle sample

ruby-imap.rb

require "net/imap"

email = "xxxxx@foo.com"
password = "xxxxxx"
server = "imap.xxxxx.com"

imap = Net::IMAP.new(server, 993, true)
imap.login(email, password)

def process_emails
  puts "Processing emails...."
end


loop do
  begin
    imap.select("INBOX")
    imap.idle do |resp|
      # You'll get all the things from the server. For new emails you're only
      # interested in EXISTS ones
      if resp.kind_of?(Net::IMAP::UntaggedResponse) and resp.name == "EXISTS"
        puts resp
        # Got something. Send DONE. This breaks you out of the blocking call
        imap.idle_done
      end
    end
    # We're out, which means there are some emails ready for us.
    # Go do a seach for UNSEEN and fetch them.
    process_emails()
  rescue Net::IMAP::Error => e
    puts "Something happened: #{e.messsage}"
    # Socket probably timed out
  rescue Exception => e
    puts "Something went terribly wrong: #{e.messsage}"
  end
end