來自Ruby控制器的無效base64字串

當我的控制器上的此操作被聯系時，我想要做的就是用 base64 字串回應。

class V1::AppProxyController < ApplicationController

  def logo
    send_file("#{Rails.root}/public/fresh_modal.png", 
              type: "image/png", 
              disposition: "inline")
  end

但是，當我將其放入在線轉換器時，回應不會回傳影像。加上它有所有這些奇怪的字符。我究竟做錯了什么？

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uj5u.com熱心網友回復：

您需要將檔案編碼為 Base64 而不是回傳二進制資料

File.open("#{Rails.root}/public/fresh_modal.png", 'rb') do |img|
  base64_file = 'data:image/png;base64,'   Base64.strict_encode64(img.read)
end
render plain: base64_file

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