bigcommerce_to_dropbox.rake

require 'bigcommerce'
require 'httparty'
require 'dropbox-api'

namespace :backups  do
  desc "Run a backup of all images"
  task :run => :environment do

    # let us setup a user with bcstore and dropbox creds
    # this assumes that the user has allowed access to the dropbox application registered and in return, 
    # we are storing their accesskey and secret.
    # to follow the oauth flow and grab the tokens, please refer to the doc at 
    # https://github.com/futuresimple/dropbox-api

    user = {
      "bcstore" => {
        "store_url" => "store-xxx.mybigcommerce.com",
        "user_name" => "admin",
        "api_key" => "jfkdj34..."
      },
      "dbstorage" => {
        "access_token" => "db access token here", 
        "secret" => "db secret key"
      }
    }

    # configure your app - the app_key and secret is provided when you register your app with dropbox
    Dropbox::API::Config.app_key    = "appkey"
    Dropbox::API::Config.app_secret = "appsecret"
    Dropbox::API::Config.mode       = "sandbox"

    # just a pointless check, but illustrated as a case, if the user's data is being fetched from database
    # to proceed, we need valid bigcommerce store creds and dropbox oauth access tokens

    if !user.bcstore.nil? && !user.dbstorage.nil?
      
      client = Dropbox::API::Client.new(:token => user["dbstorage"]["access_token"], :secret => user["dbstorage"]["secret"])
      api = Bigcommerce::Api.new({
        :store_url => user["bcstore"]["store_url"],
        :username  => user["bcstore"]["user_name"],
        :api_key   => user["bcstore"]["api_key"]
      })

      # let us get 200 images, the max allowed and update the counter
      images = api.get_products_images({:limit => 200, :page => 1})
      count = 0
      page = 1

      loop do
        image = images[count]
        img_url = user.bcstore.store_url + "/product_images/" + image["image_file"]

        # download the image to dropbox
        response = HTTParty.get(img_url)
        client.upload image['image_file'], response.body
        puts img_url

        count++

        # verbose check, provided for clarity
        # images < 200, means you have hit the last batch.
        break if (images.size < 200) and (count == images.size - 1)

        # else
        page++
        images = api.get_products_images({:limit => 200, :page => page})
        end
      end
    end
  end
end