Book & Product Searcher with Ruby/AWS

amazon-searcher.rb

#!/usr/bin/env ruby
# -*- coding: utf-8 -*-

# amazon-searcher.rb by takehikom

# run "gem install ruby-aaws"
# and prepare "~/.amazonrc"
require "rubygems"
require "amazon/aws/search"

module AmazonSearcher
  def search(code)
    if /^[0-9A-Z]{10}$/ =~ code
      search_by_asin(code)
    else
      search_by_isbn(code)
    end
  end

  def search_by_isbn(code)
    a = Amazon::AWS::ItemSearch.new("Books", {"Keywords" => code})
    a.response_group = Amazon::AWS::ResponseGroup.new(:Medium)
    req = Amazon::AWS::Search::Request.new
    begin
      res = req.search(a)
      get_property(res.item_search_response.items.item)
    rescue
      Hash.new
    end
  end

  def search_by_asin(code)
    a = Amazon::AWS::ItemLookup.new("ASIN", {"ItemId" => code})
    a.response_group = Amazon::AWS::ResponseGroup.new(:Medium)
    req = Amazon::AWS::Search::Request.new
    begin
      res = req.search(a)
      get_property(res.item_lookup_response.items.item)
    rescue
      Hash.new
    end
  end

  def get_property(item)
    asin = item.asin.to_s
    attr = item.item_attributes.to_h
    attr.each_key do |key|
      attr[key] = attr[key].to_s
    end
    attr["asin"] ||= asin
    attr
  end
end

if __FILE__ == $0
  include AmazonSearcher

  h = search(ARGV.shift || "9784000295802")
  # h = search(ARGV.shift || "B000J8KINM")

  h.each_pair do |key, value|
    if value.index("\n")
      puts "#{key}:"
      value2 = "\t" + value.chomp.gsub(/\n/, "\n\t")
      puts value2
    else
      puts "#{key}: #{value}"
    end
  end

  if h.key?("asin")
    puts
    asin = h["asin"]
    puts "[asin:#{asin}]"
    puts "http://www.amazon.co.jp/dp/#{asin}"
  end
end