freee-get-deals.gs

var appId = "Your ID";
var secret = "Your Secret";

function alertAuth() {
  var service = getService();
  var authorizationUrl = service.getAuthorizationUrl();
  var template = HtmlService.createTemplate(
    '<a href="<?= authorizationUrl ?>" target="_blank">認証</a>. ' +
    '認証が完了したら再度操作を行ってください。');
  template.authorizationUrl = authorizationUrl;
  var page = template.evaluate();
  SpreadsheetApp.getUi().showModalDialog(page, "認証が必要です");
  Logger.log("認証が切れています");
}

function getService() {
  return OAuth2.createService('freee')
      .setAuthorizationBaseUrl('https://secure.freee.co.jp/oauth/authorize')
      .setTokenUrl('https://api.freee.co.jp/oauth/token')
      .setClientId(appId)
      .setClientSecret(secret)
      .setCallbackFunction('authCallback')
      .setPropertyStore(PropertiesService.getUserProperties())
}

function authCallback(request) {
  var service = getService();
  var isAuthorized = service.handleCallback(request);
  if (isAuthorized) {
    return HtmlService.createHtmlOutput('認証に成功しました。タブを閉じてください。');
  } else {
    return HtmlService.createHtmlOutput('認証に失敗しました。タブを閉じてください。');
  }
}

function fetchFreee(url) {
  var freeeApp = getService();
  var token = freeeApp.getAccessToken();
  var options =
   {
     "method"  : "get",
     "headers" : {"Authorization" : "Bearer "+ token}

   };
  var json = UrlFetchApp.fetch(url,options).getContentText();
  var jsonData = JSON.parse(json);
  return jsonData
}

function getCompanyId() {
  var jsonData = fetchFreee("https://api.freee.co.jp/api/1/companies")
  var companyId = jsonData['companies']['0']['id'];
  return companyId
}

function getSalesData() {
  var companyId = getCompanyId();
  var dealsData = fetchFreee("https://api.freee.co.jp/api/1/deals?company_id=" + companyId);
  var dataCnt = dealsData["deals"].length;
  var arr = [];

  for(var i=0; i<dataCnt; i++){
    var issue_data = dealsData["deals"][i]["issue_date"]
    var type = dealsData["deals"][i]["type"]
    var amount = dealsData["deals"][i]["amount"]
    var description = dealsData["deals"][i]["details"][0]["description"]
    arr.push([issue_data, type, amount, description])
  }
  return arr
}

//detaというシートに取得したデータを書き出す。
function setDataToSheet(){
  var spreadsheet = SpreadsheetApp.getActiveSpreadsheet();
  var sheet = spreadsheet.getSheetByName('data'); 
  var arr = getSalesData()
  var lastRow = arr.length;
  var column = arr[0].length;
  Logger.log(arr)
  sheet.getRange(2,1,lastRow,column).setValues(arr);
}