Google Drive: Create Folder

main();
function main() {
  let parentFolderId = configs.get("ParentFolderId");
  const folderName = configs.get("FolderName");
  if (folderName === "" || folderName === null) {
    throw "Folder Name is blank";
  }

  const quser = configs.getObject("UserID");
  checkUser(quser);

  const json = createFolder(quser, parentFolderId, folderName);

  setData("FolderIdItem", json, "id");
  setData("WebViewUrlItem", json, "webViewLink");
}

/**
 * ユーザーIDをチェックする
 * @param {QuserView} quser ユーザ
 */
function checkUser(quser) {
  if (quser === null) {
    throw "User not found";
  }
}

/**
 * プロセスにデータを保存する
 * @param {String} configName 保存先データ項目の config 名
 * @param {Object} json 保存するデータをメンバに持つ JSON オブジェクト
 * @param {String} property 保存するデータのプロパティ名
 */
function setData(configName, json, property) {
  const item = configs.get(configName);
  if (item === null || item === "") {
    return;
  }
  const data = json[property];
  engine.setDataByNumber(item, data);
}

/**
 * Google ドライブにフォルダを作成する
 * @param {QuserView} quser ユーザ
 * @param {String} parentFolderId 親フォルダのID
 * @param {String} name フォルダ名
 * @return {Object} jsonRes レスポンス本文の JSON オブジェクト
 */
function createFolder(quser, parentFolderId, name) {
  let reqBody = {};
  //mime type of google drive folder
  reqBody["mimeType"] = "application/vnd.google-apps.folder";
  if (parentFolderId !== "" && parentFolderId !== null) {
    reqBody["parents"] = [parentFolderId];
  }
  reqBody["name"] = name;

  const url = "https://www.googleapis.com/drive/v3/files/";

  const response = httpClient
    .begin()
    .googleOAuth2(quser, "Drive")
    .queryParam("fields", "id, webViewLink")
    .queryParam("supportsAllDrives", "true")
    .body(JSON.stringify(reqBody), "application/json; charset=UTF-8")
    .post(url);
  const status = response.getStatusCode();
  const responseTxt = response.getResponseAsString();
  if (status >= 300) {
    const error = `Failed to create\nstatus:${status}`;
    engine.log(responseTxt);
    throw error;
  }
  engine.log(`status:${status}`);

  const jsonRes = JSON.parse(responseTxt);
  return jsonRes;
}