index.js

// original: https://github.com/CoderPuppy/os-browserify
var {DeviceEventEmitter, NativeModules, Platform} = require('react-native');
var RNOS = NativeModules.RNOS;

// update the osInfo
var osInfo = {};
DeviceEventEmitter.addListener('rn-os-info', function(info) {
  osInfo = info;
});

exports.endianness = function() {
  return 'LE';
};

exports.hostname = function() {
  if (typeof location !== 'undefined') {
    return location.hostname;
  } else {
    return '';
  }
};

exports.loadavg = function() {
  return [];
};

exports.uptime = function() {
  return 0;
};

exports.freemem = function() {
  return Number.MAX_VALUE;
};

exports.totalmem = function() {
  return Number.MAX_VALUE;
};

exports.cpus = function() {
  return [];
};

exports.type = function() {
  return 'React Native';
};

exports.release = function() {
  if (typeof navigator !== 'undefined') {
    return navigator.appVersion;
  }
  return '';
};

exports.networkInterfaces = exports.getNetworkInterfaces = function() {
  return osInfo.networkInterfaces || RNOS.networkInterfaces;
};

exports.arch = function() {
  return 'javascript';
};

exports.platform = function() {
  return Platform.OS;
};

exports.tmpdir = exports.tmpDir = function() {
  return '/tmp';
};

exports.homedir = function() {
  return RNOS.homedir;
};

exports.homedir = function () {
    return RNOS.homedir;
};

exports.EOL = '\n';