MetaHari

Meta Hari is receiving product informations from a given product link (i.e. from Amazon).

The name Meta Hari comes from Mata Hari, one of the most popular spies.

Installation

Add this line to your application's Gemfile:

gem 'meta_hari'

And then execute:

$ bundle

Or install it yourself as:

$ gem install meta_hari

Usage

In order to receive product informations, just pass the URL containing thous informations to the method MetaHari.spy.

product = MetaHari.spy('http://www.amazon.de/Gastroback-42429-Design-Wasserkocher-Advanced/dp/B000LQXC2Q/ref=sr_1_1')
product.inspect # => #<OpenStruct name="Gastroback 42429 Design Wasserkocher Advanced Pro", image="http://ecx.images-amazon.com/images/I/814Yl6mxLsL._SL1500_.jpg", description="">

Implemented spyglasses

A spyglass is a support class for a specific shop. In order to support custom shops which can not be spyed by the generic spyglass (MetaHari::Spyglass::Base), a new spyglass has to be created.

• Amazon DE
• Generic
  • Shops using JSON-LD
  • Shops using Microdata

Creating a spyglass

A spyglass has to be a class within the namespace MetaHari::Spyglass and must extend the class MetaHari::Spyglass::Base. The methods self.suitable? and spy.

module MetaHari
  module Spyglass
    class AmazonDe < Base
      def self.suitable?(uri)
        %w(amazon.de www.amazon.de).include? uri.host.downcase
      end

      def spy
        OpenStruct.new(name: title, image: image, description: '')
      end

      protected

      def title
        document.css('#productTitle').text
      end

      def image
        data = document.css('img#landingImage')
        data &&= data.attr 'data-old-hires'
        data && data.value
      end
    end
  end
end

Contributing

1. Fork it ( https://github.com/spieker/meta_hari/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request