Ruby event machine http request read timeout line Net::HTTP#read_timeout

timeout_middleware.rb

require 'em-synchrony'
require 'em-synchrony/em-http'
require 'em-synchrony/fiber_iterator'

class TimeoutMiddleware
  def request(client, head, body)
    client.timeout(15)
    [head, body]
  end
end

header = {
  'User-Agent' => 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:40.0) Gecko/20100101 Firefox/40.0',
  'Accept' => '*/*'
}
urls = ['http://tuvietthao1.koding.io/ua.php'] # endless loading page
concurrency = 10

EM.synchrony do
  EM::HttpRequest.use(TimeoutMiddleware)

  EM::Synchrony::FiberIterator.new(urls, concurrency).each do |url|
    conn = EM::HttpRequest.new(url, connect_timeout: 5, inactivity_timeout: 10)
    resp = conn.get(redirects: 2, head: header)
    if resp.finished?
      puts resp.response
    else
      puts 'error'
      # resp.response is also available here
    end
  end

  EM.stop
end