mercury_parser.rb

require 'net/http'
require 'json'

class MercuryParser

  attr_reader :url

  def initialize(url)
    @url = url
  end

  def parse
    req = Net::HTTP::Get.new(uri)
    req['x-api-key'] = ENV.fetch('MERCURY_TOKEN')

    res = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) do |http|
      http.request(req)
    end

    JSON.parse res.body
  end

  def self.parse(url)
    new(url).parse
  end

  private

  def uri
    URI(base + api_url(url))
  end

  def base
    "https://mercury.postlight.com"
  end

  def api_url(url)
    "/parser?url=#{url}"
  end

end