Heroku在发送电子邮件时超时

Question

我在Heroku上使用自定义域名,我有Redis附加组件.我需要帮助了解如何为电子邮件通知创建后台工作程序.用户可以互相收件箱,我希望向用户发送收到的每封新邮件的电子邮件通知.我有开发工作的通知,但我不擅长创建Heroku所需的后台作业,否则服务器会超时.

消息控制器:

  def create
    @recipient = User.find(params[:user])
    current_user.send_message(@recipient, params[:body], params[:subject])
    flash[:notice] = "Message has been sent!"
    if request.xhr?
        render :json => {:notice => flash[:notice]}
    else
        redirect_to :conversations
    end
  end

用户模型:

def mailboxer_email(object)
    if self.no_email
      email
    else
        nil
    end
end

Mailboxer.rb:

Mailboxer.setup do |config|

  #Configures if you applications uses or no the email sending for Notifications and Messages
  config.uses_emails = false

  #Configures the default from for the email sent for Messages and Notifications of Mailboxer
  config.default_from = "no-reply@domain.com"

  #Configures the methods needed by mailboxer
  config.email_method = :mailboxer_email
  config.name_method = :name

  #Configures if you use or not a search engine and wich one are you using
  #Supported enignes: [:solr,:sphinx]
  config.search_enabled = false
  config.search_engine = :sphinx
end

Answer 1

Sidekiq绝对是Heroku的方式.我认为邮箱不支持开箱即用的后台配置.值得庆幸的是,使用sidekiq的排队过程仍然非常容易.

1. 添加gem 'sidekiq'到您的gemfile并运行bundle.
2. 创建一个工作文件app/workers/message_worker.rb.

class MessageWorker
  include Sidekiq::Worker

  def perform(sender_id, recipient_id, body, subject)
    sender = User.find(sender_id)
    recipient = User.find(recipient_id)
    sender.send_message(recipient, body, subject) 
  end
end

3. 更新您的控制器以排队工人

去掉: current_user.send_message(@recipient, params[:body], params[:subject])

加: MessageWorker.perform_async(current_user.id, @recipient.id, params[:body], params[:subject])

注意:您永远不应该传递工作者ActiveRecord对象.这就是为什么我设置这个方法来传递用户ID并在worker的perform方法中查找它们,而不是整个对象.

4. 最后,重启服务器并运行bundle exec sidekiq.现在您的应用应该发送电子邮件背景.

5. 部署时,您需要为工作人员单独设置一个dyno,如下所示:worker: bundle exec sidekiq.您还需要Heroku的redis插件.

Answer 2

听起来像H21请求超时:

HTTP请求需要超过30秒才能完成.

要在RoR中为此创建后台工作程序,您应该获取Resque,这是一个Redis支持的RoR背景排队库.这是一个演示.另一个演示.另一个演示.

要了解有关在Heroku中使用Resque的更多信息,您还可以在此处阅读herokue文章.或者本教程(虽然它是旧的).另一位伟大的教程.

还有一个resque_mailer gem可以为你加速.

gem install resque_mailer #or add it to your Gemfile & use bundler 

这很简单.以下是作者的工作演示片段:

class Notifier < ActionMailer::Base
  include Resque::Mailer

  default :from => "from@example.com"

  def test(data={})
    data.symbolize_keys!

    Rails.logger.info "sending test mail"
    Rails.logger.info "params: #{data.keys.join(',')}"
    Rails.logger.info ""

    @subject = data[:subject] || "Testing mail"
    mail(:to => "nap@localhost.local",
         :subject => @subject)
  end
end

做Notifier.test.deliver将传递邮件.

您还可以考虑使用SES等邮件传递服务.