Rails. Download remote image as attachment in browser

send_data-send_file-remote-images-download

# in controller

# for local files
send_file '/path/to/file', :type => 'image/jpeg', :disposition => 'attachment'

# for remote files
require 'open-uri'
url = 'http://someserver.com/path/../filename.jpg'
data = open(url).read
send_data data, :disposition => 'attachment', :filename=>"photo.jpg"

hello sir,how to get perticular url from json?
$.each(files, function(key,value){
alert(value.link)});

in my code how can i store the link value in avariable?

if you are going to serve aws s3 files like this, you are gonna loose all the benefits like CDN and high availability features.
because this way you download file to the server. it become a network bottleneck.

A lot of load on server's memory. Not recommended.

what about the file after downloading? is it still persist on the server?

i think the file should be removed after the controller response

thank you

shahroon commented on 13 Nov 2019
A lot of load on server's memory. Not recommended.

maybe, pass an enum with some sensible limit?

send_data data.each(512)...