categories.rb

require 'rosette_api'

api_key, url = ARGV

if !url
  rosette_api = RosetteAPI.new(api_key)
else
  rosette_api = RosetteAPI.new(api_key, url)
end

categories_url_data = "https://onlocationvacations.com/2015/03/05/the-new-ghostbusters-movie-begins-filming-in-boston-in-june/"
begin
  params = DocumentParameters.new(content_uri: categories_url_data)
  response = rosette_api.get_categories(params)
  puts JSON.pretty_generate(response)
rescue RosetteAPIError => rosette_api_error
  printf('Rosette API Error (%s): %s', rosette_api_error.status_code, rosette_api_error.message)
end