Restore Wifi connection after router reboot

This is what I use

function wifiConnect() {
  wifi = require('Wifi');
  wifi.connect(wifi_options.ssid, { password: wifi_options.password },
    (e)=> {
      if (e) {
        print("WIFI: " + e);
      }
  });
  wifi.on('connected', ()=> {
    print('WIFI:', wifi.getIP());
  });
  wifi.on('disconnected', ()=> {
    print("WIFI: Reconectando...");
    wifi.connect(wifi_options.ssid, {password: wifi_options.password});
  });
}