Class: Amazon::ProductAdvertising

Inherits:
Object
  • Object
show all
Defined in:
lib/api_helpers/amazon.rb

Instance Method Summary collapse

Instance Method Details

#accessories_url(asin) ⇒ Object 



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# File 'lib/api_helpers/amazon.rb', line 40

def accessories_url(asin)
  accessories_url = "http://www.amazon.com/dp/accessories/#{asin}/#accessories"
  "http://www.amazon.com/gp/redirect.html?ie=UTF8&tag=#{associate_tag}&linkCode=ur2&camp=1789&creative=9325&location=#{CGI::escape(accessories_url)}"
end

#associate_tag ⇒ Object 



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# File 'lib/api_helpers/amazon.rb', line 24

def associate_tag
  AMAZON_ASSOCIATE_TAG
end

#at_a_glance_url(seller_id) ⇒ Object 



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# File 'lib/api_helpers/amazon.rb', line 28

def at_a_glance_url(seller_id)
  "http://www.amazon.com/gp/help/seller/at-a-glance.html?seller=#{seller_id}"
end

#find_offers_by_asin(asin, featured_merchants_only = false) ⇒ Object 



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# File 'lib/api_helpers/amazon.rb', line 45

def find_offers_by_asin(asin, featured_merchants_only=false)
  # find_offers_by_asin_via_api(asin, featured_merchants_only)
  scrape_offer_listing_page_to_hash(asin, featured_merchants_only)
end

#find_product_by_asin(asin) ⇒ Object 



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# File 'lib/api_helpers/amazon.rb', line 58

def find_product_by_asin(asin)
  request = {'Operation' => 'ItemLookup',
             'ResponseGroup' => 'Medium',
             'ItemId' => asin.strip,
             'IdType' => 'ASIN'}
  res = make_amazon_api_request request

  item = res / 'Items' / 'Item'
  asin = (item / 'ASIN').inner_html
  item_attributes = item / 'ItemAttributes'
  name = (item_attributes / 'Title').inner_html
  list_price = (item_attributes / 'ListPrice' / 'Amount').inner_html
  if list_price.nil? || list_price.empty?
    list_price = 0
  else
    list_price = (list_price.to_f / 100.0)
  end
  model = (item_attributes / 'Model').inner_html
  mpn = (item_attributes / 'MPN').inner_html
  upc = (item_attributes / 'UPC').inner_html
  manufacturer = (item_attributes / 'Manufacturer').inner_html
  
  features = (item_attributes / 'Feature').collect{|x| x.inner_html } # specifications
  
  editorial_reviews = (item / 'EditorialReviews').inject({}) {|ha, x| ha[(x / 'EditorialReview' / 'Source').inner_html] = (x / 'EditorialReview' / 'Content').inner_html; ha }
  
  begin
    small_image = {:url => (item.at('SmallImage') / 'URL').inner_html,
                   :width => (item.at('SmallImage') / 'Width').inner_html,
                   :height => (item.at('SmallImage') / 'Height').inner_html}
  rescue
    small_image = nil
  end
  begin
    medium_image = {:url => (item.at('MediumImage') / 'URL').inner_html,
                    :width => (item.at('MediumImage') / 'Width').inner_html,
                    :height => (item.at('MediumImage') / 'Height').inner_html}
  rescue
    medium_image = nil
  end
  begin
    large_image = {:url => (item.at('LargeImage') / 'URL').inner_html,
                   :width => (item.at('LargeImage') / 'Width').inner_html,
                   :height => (item.at('LargeImage') / 'Height').inner_html}
  rescue
    large_image = nil
  end

  product = {:asin => asin,
             :name => name,
             :list_price => list_price,
             :model => model,
             :mpn => mpn,
             :upc => upc,
             :manufacturer => manufacturer,
             :small_image => small_image,
             :medium_image => medium_image,
             :large_image => large_image,
             :features => features,
             :editorial_reviews => editorial_reviews}
  product
end

#find_product_review_info_by_asin_raw(asin) ⇒ Object 



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# File 'lib/api_helpers/amazon.rb', line 50

def find_product_review_info_by_asin_raw(asin)
  request = {'Operation' => 'ItemLookup',
             'ResponseGroup' => 'Reviews',
             'ItemId' => asin.strip,
             'IdType' => 'ASIN'}
  make_amazon_api_request_raw request
end

#item_search(search_terms) ⇒ Object 



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# File 'lib/api_helpers/amazon.rb', line 121

def item_search(search_terms)
  request = {'Operation' => 'ItemSearch',
             'Keywords' => search_terms,
             'SearchIndex' => 'All',
             'ResponseGroup' => 'Images,ItemAttributes'}
  res = make_amazon_api_request request
  products = []
  items = (res / 'Items' / 'Item')
  items.each do |item|
    begin
      small_image = item.at('SmallImage')
      if !small_image.nil?
        small_image_url = (small_image / 'URL').inner_html
      else
        small_image_url = ''
      end
      products << {
        :asin => (item / 'ASIN').inner_html,
        :name => (item / 'ItemAttributes' / 'Title').inner_html,
        :small_image_url => small_image_url
      }
    rescue
    end
  end
  products
end

#offer_listing_url(asin) ⇒ Object 



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# File 'lib/api_helpers/amazon.rb', line 36

def offer_listing_url(asin)
  "http://www.amazon.com/gp/offer-listing/#{asin}?condition=new"
end

#offer_url(asin, merchant_type, merchant_id) ⇒ Object 



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# File 'lib/api_helpers/amazon.rb', line 32

def offer_url(asin, merchant_type, merchant_id)
  "http://www.amazon.com/exec/obidos/ASIN/#{asin}/?#{merchant_type == 'seller' ? 'seller' : 'm'}=#{merchant_id}&tag=#{associate_tag}"
end

#seller_lookup(seller_id) ⇒ Object 



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# File 'lib/api_helpers/amazon.rb', line 148

def seller_lookup(seller_id)
  request = { 'Operation' => 'SellerLookup',
              'SellerId' => seller_id }
  res = make_amazon_api_request request

  element = res.at('/SellerLookupResponse/Sellers/Seller/SellerName')
  if element.nil?
    element = res.at('/SellerLookupResponse/Sellers/Seller/Nickname')
  end
  if !element.nil?
    merchant_name = element.inner_text
  end
  begin
    details = scrape_at_a_glance_page(seller_id)
    logo_url = details[:logo_url]
    merchant_name = details[:merchant_name] if merchant_name.nil? || merchant_name.empty?
    homepage = details[:homepage]
  rescue
  end

  if merchant_name.nil? || merchant_name.empty?
    merchant_name = "Amazon merchant (#{seller_id})"
  end

  element = res.at('/SellerLookupResponse/Sellers/Seller/GlancePage')
  glance_page_url = element.inner_text unless element.nil?

  element = res.at('/SellerLookupResponse/Sellers/Seller/AverageFeedbackRating')
  average_feedback_rating = element.nil? ? 0.0 : element.inner_text.to_f

  element = res.at('/SellerLookupResponse/Sellers/Seller/TotalFeedback')
  total_feedback = element.nil? ? 0 : element.inner_text.to_i

  { :seller_id => seller_id,
    :merchant_name => merchant_name,
    :glance_page_url => glance_page_url,
    :average_feedback_rating => average_feedback_rating,
    :total_feedback => total_feedback,
    :logo_url => logo_url,
    :homepage => homepage }
end