Ruby on Rails-Base64的外部映像网址

Question

is there anyway in Ruby on Rails to convert the image hosted in an image url ( https://meo-fb-natal-dev.s3.amazonaws.com/participations/cropped/56658c5de2fc7116340000c0/635769180217506883-GD5A9264.jpg?1449495643 ) to Base64?

I've tried tons of things but none of them seem to work.

Answer 1

What exactly is not working?

Here is an example:

$> irb
>> require 'open-uri'
>> img = open("https://meo-fb-natal-dev.s3.amazonaws.com/participations/cropped/56658c5de2fc7116340000c0/635769180217506883-GD5A9264.jpg?1449495643")
# img variable is a tempfile with image
>> require 'base64'
>> Base64.encode64(img.read)
=> "/9j/4AAQSkZJRgABAQEASABIAAD/2wBDAAYEBQYFBAYGBQYHBwYIChAKCgkJ\nChQODwwQFxQYGBcUFhYaHSUfGhsjHBYWICwgIyYnKSopGR8tMC0oMCUoKSj/\n2wBDAQcHBwoIChMKChMoGhYaKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCgo\nKCgoKCgoKCgoKCgoKCgoKCgoKCgoKCj/wAARCAFTAoYDASIAAhEBAxEB/8QA\nHAAAAAcBAQAAAAAAAAAAAAAAAQIDBAUGBwAI/8QAShAAAgEDAgQEAwUGB..."

Answer 2

You can try this

url = "https://meo-fb-natal-dev.s3.amazonaws.com/participations/cropped/56658c5de2fc7116340000c0/635769180217506883-GD5A9264.jpg?1449495643"
ActiveSupport::Base64.encode64(open(url) { |io| io.read })