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Take a signed permanent reference for a blob representation and turn it into an expiring service URL for download.

WARNING: All Active Storage controllers are publicly accessible by default. The generated URLs are hard to guess, but permanent by design. If your files require a higher level of protection consider implementing Authenticated Controllers.


Instance Public methods


# File activestorage/app/controllers/active_storage/representations/redirect_controller.rb, line 10
def show
  expires_in ActiveStorage.service_urls_expire_in
  redirect_to @representation.url(disposition: params[:disposition]), allow_other_host: true