Serverless script to link Monobank API and YNAB

monobank-ynab.js

const ynab = require("ynab");
const ynabAPI = new ynab.API(process.env.YNAB_TOKEN);
const adMaioraBudgetId = process.env.BUDGET_ID;
const monoDebitAccountId = process.env.MONO_DEBIT_ACCOUNT_ID;

module.exports.handler = (event, context, callback) => {

  const body = JSON.parse(event.body);
  console.log('Event body: ', body);

  if (!body || !body.data || !body.data.statementItem) {
    callback(null, {
      statusCode: 400,
      headers: {},
      body: JSON.stringify({error: "No data provided :("})
    });
  }

  callback(null, {
    statusCode: 200,
    headers: {},
    body: JSON.stringify({status: 'Ok!'})
  });

  
  ynabAPI.transactions
    .createTransaction(adMaioraBudgetId, {
      transaction: {
        account_id: monoDebitAccountId,
        date: ynab.utils.getCurrentDateInISOFormat(),
        amount: body.data.statementItem.amount + "0",
        payee_name: body.data.statementItem.description
      }
    })
    .then(res => {
      console.log('YNAB Response: ', res);
    })
    .catch(err => {
      console.error('YNAB error: ', err);
    });
};