Question

我有一个简单的Rails应用程序向外部网站发出请求并返回一个带有回调的json url响应到我的站点，以通知我的Rails应用程序有关响应。 json url示例为https://voguepay.com/?v_transaction_id=demo-1345109950&type=json，响应正文如下：

{"merchant_id":"demo","transaction_id":"demo-1345109950","email":"testuser@buyerdomain.com","total":"10","total_paid_by_buyer":"10.00","total_credited_to_merchant":"9.90","extra_charges_by_merchant":"0.00","merchant_ref":"","memo":"Donation of N10 to Test User","status":"Approved","date":"2012-01-01 11:39:11","referrer":"http:\/\/sellerdomain.com\/buy_now.html","method":"VoguePay","fund_maturity":"2012-01-03"}

我想将此响应转换为Rails方法，而不是简单地给出我需要进行查询的属性。例如，从响应主体我需要做出如下操作：

def notify
  response = Json.parse('https://voguepay.com/?v_transaction_id=demo-1345109950&type=json').body
  response.status
  response.date
  response.merchant_id
  response.total
end

上面的代码只是一个解释我想要实现的内容的示例。任何帮助都会很棒。

我已经尝试了typhoeus和yajl-ruby个宝石，但是当请求进来时，我的所有身份验证方法都被删除了，并且我不断收到错误消息，无法验证csrf元令牌。即使我跳过它，当前用户也会自动注销（使用设计认证）。使用的代码示例如下：

class NotificationsController < ApplicationController
  skip_before_filter :verify_authenticity_token

  def notify
      @transaction_id = params[:transaction_id]
      do_notify
  end

  private
  def do_notify
    hydra = Typhoeus::Hydra.new
    request = Typhoeus::Request.new("https://voguepay.com/?v_transaction_id=#{@transaction_id}&type=json")
    request.on_complete do |response|
        logger.info("#{response.request.url} in #{response.time} seconds")  #remove in production to avoid huge logs
              transaction = Yajl::Parser.parse(response.body)  #or Yajl::Parser.parse(response.body)

              #Now we have the following keys in our transaction hash  you can do whatever
              transaction[:merchant_id]
              transaction[:transaction_id]
              transaction[:email]
              transaction[:total]
              transaction[:merchant_ref]
              transaction[:memo]
              transaction[:status]
              transaction[:date]
              transaction[:referrer]
              transaction[:method]
              @plan = Plan.find_by_id(transaction[:merchant_ref])
              if(transaction[:total] == 0)
                logger.error "Invalid total for transaction:#{@transaction_id}"
                 #do not subscribe the user or generate invoice, notify user of error n cancel order
              elsif(transaction[:status] != 'Approved')
                logger.error "Failed transaction for transaction:#{@transaction_id}"
                 #do not subscribe the user or generate invoice, notify user of error n cancel order
              elsif(transaction[:total] >= @plan.naira_price.to_s)
                current_user.award_user_credits(@plan.hjc.to_i)
              end            
    end
    hydra.queue(request)
    hydra.run
  end
end

我不想使用我想手动创建的gem来查看csrf元令牌是否会受到影响。所以我对如何实现这一点的任何想法都会很棒。我正在使用rails 3.2.9。

谢谢！

Answer 1

你可以这样做：

def notify
  response = JSON('https://voguepay.com/?v_transaction_id=demo-1345109950&type=json').body
 response["status"]
 response["date"]
 response["merchant_id"]
 response["total"]
end

如何在rails中解析json url响应

1 个答案: