Auchan.rb

require 'nokogiri'
require 'open-uri'

Encoding.default_external = 'UTF-8'
query = params['query'] || 'banana'
page = (params['page'] || 0).to_i
url = "https://www.auchan.pt/pt/pesquisa?q=#{query}&search-button=&lang=pt_PT&start=#{page * 24}&sz=24"
document = Nokogiri::HTML(open(url))

search_items = document.css('div.auc-product').map do |tile|
  title = tile.css('a.link').text().capitalize
  product, brand = title.split(' - ')
  price = tile.css('span.value').text().strip
  priceKg = tile.css('span.auc-measures--price-per-unit').text().strip.gsub('€/Kg', '')
  unit = 'xx'
  img_url = tile.css('img.tile-image').attr('data-src').value
  brand = brand&.strip == 'Própria' ? 'Auchan' : brand&.strip
  quantity = tile.css('span.auc-measures--avg-weight').text().strip
  destiny_url = tile.css('a.auc-product-tile__image-container__image').attr('href').value
  supermarket = 'Auchan'

  {
    title: title,
    price: price,
    price_kg: priceKg.empty? ? nil : priceKg,
    unit: unit,
    img_url: img_url,
    brand: brand,
    quantity: quantity,
    destiny_url: "https://www.auchan.pt/pt#{destiny_url}",
    supermarket: supermarket
  }
end

{
  query: query,
  url: url,
  page: page,
  total_items: search_items.size,
  search_items: search_items
}