get '/anagrams/:word' do
  content_type :json
  errors = []
  if settings.lexicon.is_word?(params[:word])
    anagram_list = settings.lexicon.get_anagrams(params[:word])
    return [200, {'data': anagram_list, 'error': []}].to_json unless anagram_list.empty?
    errors.push('That word has no anagrams. Try another word?')
    return [200, {'data': [], 'error': errors}].to_json
  else
    errors.push('There is no such word in our lexicon. Try another word?')
    return [404, {'data': [], 'error': errors}].to_json
  end
end