create GitHub issues from selected range on Google SpreadSheet

code.gs

const ui = SpreadsheetApp.getUi();
const userProperties = PropertiesService.getUserProperties();
const ACCESS_TOKEN = 'access token';

function setToken(){
  const scriptValue = ui.prompt('Personal Access Token', ui.ButtonSet.OK);
  userProperties.setProperty(ACCESS_TOKEN, scriptValue.getResponseText());
}

function removeToken(){
  userProperties.deleteProperty(ACCESS_TOKEN);
  ui.alert('Token is removed.');
}

// github issue creation endpoint
const githuburl = (organization_name, repository) => `https://api.github.com/repos/${organization_name}/${repository}/issues`;

// request creation function
const create_request = (url, accesstoken) => {
  return (payload) =>
    ({
      url: url,
      method: "post",
      headers: {
        Authorization : `token ${accesstoken}`
      },
      payload: payload
    });
};

const create_issue = () => {
  // obtain sheet information
  const spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
  const sheet = spreadsheet.getActiveSheet();

  const activeRange = sheet.getActiveRange();
  const issueRows = activeRange.getValues();

  const issues = issueRows.map( row => {
    const title = row[0];
    const body = `
### Due Date
${row[1].getFullYear()}/${row[1].getMonth() +1}/${row[1].getDate()}

### Operation Detail
${row[2]}

### Other
${row[3]}
`
    const labels = row[4] ? row[4].split(',') : [];

    return {title: title, body: body, labels: labels}
  })

  // variables
  const accesstoken = userProperties.getProperty(ACCESS_TOKEN);
  const organization_name = 'toripiyo';
  const repository = 'sample-rails-app';

  // url
  const url = githuburl(organization_name, repository);

  // create request function
  const request = create_request(url, accesstoken);

  // request creation
  const requests = issues.map(issue => request(JSON.stringify(issue)));
  Logger.log(requests);

  // send issue creation request
  UrlFetchApp.fetchAll(requests);
};

// confirmation
const confirmation = () => {
  const confirmed = Browser.msgBox("Do you create github issue?", Browser.Buttons.OK_CANCEL);
  if(confirmed == 'ok') {
    create_issue();
  }
};

// add menus
const onOpen = () => {
  const GitHubMenu = [
    {name: "create Issue", functionName: "confirmation"},
    {name: "set Token", functionName: "setToken"},
    {name: "remove Token", functionName: "removeToken"}
  ]
  SpreadsheetApp.getActiveSpreadsheet().addMenu("GitHub",GitHubMenu); // add menu
};