NBG Fetch Currency AppScript

index.gs

/**
 * Fetch currency rate from 
 * @see https://nbg.gov.ge/en/monetary-policy/currency
 * @param date Date
 * @param currency USD, EUR or GBP
 */
function fetchGelCurrencyRate(date, currency) {
  Logger.log(`fetchGelCurrencyRate with date: ${date}, currency: ${currency}`);
  const toISODateString = date => `${date.getFullYear()}-${(date.getMonth() + 1).toString().padStart(2, "0")}-${date.getDate().toString().padStart(2, "0")}`;
  const url = `https://nbg.gov.ge/gw/api/ct/monetarypolicy/currencies/en/json/?currencies=${currency.toUpperCase()}&date=${toISODateString(date)}`;
  Logger.log(`Making request to: ${url}`);
  const response = UrlFetchApp.fetch(url);
  const json = JSON.parse(response.getContentText());
  Logger.log(`Result: ${response.getContentText()}`);
  return { rate: json[0].currencies[0].rate, validFrom: json[0].currencies[0].validFromDate };
}

function testFetch() {
  fetchGelCurrencyRate(new Date(), 'USD');
}

/**
 * The event handler triggered when editing the spreadsheet
 * @param {Event} e The onEdit event.
 * @see https://developers.google.com/apps-script/guides/triggers#onedite
 * @see https://developers.google.com/apps-script/guides/triggers/installable#g_suite_application_triggers
 * @see https://developers.google.com/apps-script/guides/triggers/events#google_sheets_events
 * @see https://developers.google.com/apps-script/reference/spreadsheet
 */
function onCellEdit(e) {
  const debugEvent = {
    authMode:  e.authMode,  
    range:  e.range.getA1Notation(),    
    source:  e.source.getId(),
    user:  e.user,   
    value:  e.value,
    oldValue: e. oldValue
  }
  console.log({message: 'onCellEdit() Event Object', eventObject: debugEvent});

  const spreadsheet = e.source;
  const sheet = spreadsheet.getSheets()[0];
  const columnLetter = e.range.getA1Notation()[0];
  if (!e.value || !['B', 'C'].includes(columnLetter)) {
    return;
  }
  
  const rowPosition = e.range.getRow();
  const dateRange = sheet.getRange("B" + rowPosition);
  const currencyRange = sheet.getRange("C" + rowPosition);

  console.log('rowPosition', rowPosition);
  console.log('dateRange', dateRange.getA1Notation());
  console.log('currencyRange', currencyRange.getA1Notation());
  const currencyRate = fetchGelCurrencyRate(dateRange.getValue(), currencyRange.getValue());
  const validFromRange = sheet.getRange("D" + rowPosition);
  const rateRange = sheet.getRange("E" + rowPosition);
  Logger.log(`Currency Rate: ${currencyRate.rate}, from ${currencyRate.validFrom}`);
  validFromRange.setValue(new Date(currencyRate.validFrom));
  rateRange.setValue(currencyRate.rate);
}