目的

資料自動化のため
情報のこえだめとして
code.ts
/**
* @autour @kabanyasu 
*/


/**
 * APIを叩いて月次試算表を取得し、オブジェクト形式に変換する
 * @return {object} resBss
 */
function postApi() {
  let accessToken = getService().getAccessToken();
  let baseUrl = 'https://api.freee.co.jp/api/1/reports/trial_bs_two_years';
  let companyId = 9999999;
  let fiscalYear = 2019;
  let startMonth = 1;
  let endMonth = 12;
  let postUrl = baseUrl + `?company_id=${companyId}&fiscal_year=${fiscalYear}&start_month=${startMonth}&end_month=${endMonth}`;
  let options = {
    'method': 'get',
    'headers': {
      'Authorization': 'Bearer ' + accessToken
    },
  };
  let resBss = JSON.parse(UrlFetchApp.fetch(postUrl, options)).trial_bs_two_years.balances;
  return resBss;
}

/**
 * オブジェクトを二次配列に整形する。
 * @param {any} object
 * @return {any} array
 */
function createArray(object: any) {
  const array = object.map(account => {
    const level = account.hierarchy_level;
    const close = account.closing_balance;
    const last = account.last_year_closing_balance;
    if (!account.total_line) {
    //[勘定科目ID, 勘定科目名, 階層, 前期末残高, 当期末残高, 増減率, 増減額]
      return [account.account_item_id, account.account_item_name, level, last, close, close / last, close - last];
    } else {
    //[勘定カテゴリID, 勘定カテゴリ名, 階層, 前期末残高, 当期末残高, 増減率, 増減額]
      return [account.account_category_id, account.account_category_name, level, last, close, close / last, close - last];
    }
  });
  return array;
}