gistfile1.js

var React = require('react-native');
var _ = require('lodash');
var ProximityManager = require('NativeModules').ProximityManager;

var startAdvertising = function(appUUID, localUserUUID, delayTime, callback) {
	var lastFired;
	ProximityManager.startAdvertising(appUUID, localUserUUID);
  
  React.DeviceEventEmitter.addListener('nearByUserFound', function(remoteUserUUID) {
  	if (!lastFired || (lastFired && (new Date) - lastFired > delayTime)) {
  	  callback(remoteUserUUID);
  	  lastFired = new Date;
  	};
  })
};

module.exports.startAdvertising = startAdvertising;