data_importer/lib/importers/cna_importer.rb

require 'json'
require '/data_importer/lib/json_helper.rb'
require 'rest-client'

class CnaImporter 
  attr_accessor :url
  def initialize
    @url = 'https://raw.githubusercontent.com/CVEProject/cve-website/dev/src/assets/data/CNAsList.json'
  end

  def send_request_rest
    RestClient::Request.execute(
      method: :get,
      url: url
    )
  end

  def parse_res(response)
    JSON.parse(response.body, symbolize_names: true)
  end

  def get_json
    res = send_request_rest
    if res.code == 200
      json = parse_res(res)
      JsonHelper.deep_transform_keys(json)
    else
      "HTTP Status: #{res.code}"
    end
  end

  def import
    jsons = get_json
    puts "Now importing CNAs."
    Cna.upsert_all(jsons, unique_by: :cna_id)
  end

end