text: const https = require('https');
  
  const DOLARSI_DOLARES_URL = 'https://www.dolarsi.com/api/api.php?type=valoresprincipales';
  const DOLARSI_DOLAR_OF_URL = 'https://www.dolarsi.com/api/api.php?type=genedolar&opc=of';
  const DOLARSI_DOLAR_BL_URL = 'https://www.dolarsi.com/api/api.php?type=genedolar&opc=bl';
  const DOLARSI_REAL_URL = 'https://www.dolarsi.com/api/api.php?type=genedolar&opc=ah';
  const DOLARSI_EURO_URL = 'https://www.dolarsi.com/api/api.php?type=genedolar&opc=ta';
  
  async function get_value(URL) {
    return new Promise((resolve, reject) => {
      https.get(URL, res => {
        res.on('data', data => {
          const data_json = JSON.parse(data.toString('utf8'));
          resolve(data_json);
        });
      });
    }).catch(err => reject(err));
  }
  
  async function get_table() {
    let contents_values = [];
    valores = await get_value(DOLARSI_DOLARES_URL);
    valores.forEach(element => {
      element.casa.nombre != 'Argentina' ? name = element.casa.nombre : name = 'Riesgo Pais Argentina';
      element.casa.compra != 0 ? compra = element.casa.compra : compra = 'No Cotiza';
      element.casa.venta != 0 ? venta = element.casa.venta : venta = 'No Cotiza';
      contents_values.push(
        {
          'Moneda': name,
          'Compra': compra,
          'Venta': venta
        });
    });
    return contents_values;
  }
  
  URLs = {
    varios: DOLARSI_DOLARES_URL,
    dolar_bl: DOLARSI_DOLAR_BL_URL,
    dolar_of: DOLARSI_DOLAR_OF_URL,
    euro: DOLARSI_EURO_URL,
    real: DOLARSI_REAL_URL
  }
  
  exports.URLs = URLs;
  exports.get_value = get_value;
  exports.get_table = get_table;