Pings `ozbargain.com.au` and send a notification if a keyword matches

nightwatch.rb

require 'httparty'
require 'pry'
require 'nokogiri'
require 'terminal-notifier'

class FeedService

  attr_accessor :url
  attr_accessor :keyword

  def initialize(url, keyword)
    @url = url
    @keyword = keyword
  end
  
  def call
    html = getResponse
    parsed = parseHtml(html)
    nodes = parsed.css('.n-right').css('.title')

    filtered_nodes = nodes.select do |node|
      next unless node.text.downcase.include?(keyword.downcase)
      title = node.text
      link = node.children.last.values.first
      TerminalNotifier.notify(title, title: "Night Watch", open: "https://ozbargain.com.au#{link}")
    end

    TerminalNotifier.notify("There's no match! Try again.", title: "Night Watch") if filtered_nodes.empty?
    TerminalNotifier.notify("Any now my watch has ended", title: "Night Watch")
  end

  private

  def getResponse
    HTTParty.get(url).body
  end

  def parseHtml(html)
    Nokogiri::HTML(html)
  end

  def matches_keyword?(text, keyword)
    text.downcase.include?(keyword.downcase)
  end

end

url = "https://www.ozbargain.com.au/deals"
keyword = "nintendo"
service = FeedService.new(url, keyword)
service.call

I use whenever to schedule my cron job in Ruby language.

What this does is that it pings ozbargain to see if there's a new deal that matches my criteria.