在上传到 S3 之前访问 Paperclip 图像 [英] Access Paperclip image before it's uploaded to S3

问题描述

My Rails 应用程序使用 Paperclip 将图像上传到 S3.我想在将图像发送到 S3 之前拦截"它，将其转换为 base64，然后将其发送给第三方 API.

My Rails app uploads images to S3 with Paperclip. I want to "intercept" the image before it is sent to S3, convert it to base64, and send it to a third-party API.

如何在 Paperclip 上传到 S3 之前访问图像?这比之后从 S3 读取文件，然后将其发送到第三方 API 更快.

How can I access the image before it gets uploaded by Paperclip to S3? This would be quicker than reading the file from S3 afterwards, and then sending it to the third-party API.

推荐答案

试试这个

class Model < ActiveRecord::Base

  has_attached_file :image

  before_save :send_image

  private

  def send_image
    image.queued_for_write[:original] # <= this is your image
  end
end

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