Download images from Instagram

instagram.rb

require "restclient"
require "json"

media_url = "https://api.instagram.com/v1/tags/scottisla/media/recent?access_token=ACCESS_TOKEN"

urls = []

while media_url != nil
  response = RestClient.get(media_url)
  json = JSON.parse(response)
  media_url = json["pagination"]["next_url"]
  json["data"].each do |item|
    urls << item["images"]["standard_resolution"]["url"]
  end
  # don't slam instagram's api
  sleep 0.2
end

urls.each_with_index do |url, idx|
  image = RestClient.get(url)
  path = Dir.pwd + "/#{idx}.jpg"
  File.open(path, 'w') {|f| f.write(image) }
end