class GdsApi::ContentApi

def artefact(slug, params={})
  url = "#{base_url}/#{CGI.escape(slug)}.json"
  query = params.map { |k,v| "#{k}=#{v}" }
  if query.any?
    url += "?#{query.join("&")}"
  end
  if params[:edition] && ! options.include?(:bearer_token)
    raise GdsApi::NoBearerToken
  end
  get_json(url)
end