text: var express = require('express');
  var cors = require('cors');
  var morgan = require('morgan');
  var body_parser = require('body-parser');
  var axios = require('axios');
  var port = process.argv[2];
  var app = express();
  var server_1 = 'http://localhost:32300/api';
  var server_2 = 'http://localhost:33300/api';
  var server_3 = 'http://localhost:34020/api';
  
  app.use(cors());
  app.use(morgan('dev'));
  app.use(body_parser.urlencoded({ extended: false }));
  
  app.get('/', async (req, res) => {
      axios.get(server_1).then(async (response) => {
          await res.json({
              message: response.data
          });
      }).catch(function (error) {
          if (!error.status) {
              axios.get(server_2).then(async (response) => {
                  await res.json({
                      message: response.data
                  });
              }).catch(function (error) {
                  if (!error.status) {
                      axios.get(server_3).then(async (response) => {
                          await res.json({
                              message: response.data
                          });
                      }).catch(function (error) {
                          if (!error.status) {
                              res.json({
                                  message: "No se ha logrado establecer conexión con los servidores"
                              });
                          }
                      });
                  }
              });
          }
      });
  });
  
  app.listen(port, function () {
      console.log('Example app server ubuntu1 listening on port ' + port + '!');
  });
  