search.js

// read api doc:
// http://developer.factual.com/display/docs/Core+API+-+Read

var auth = require('./auth.js'); //or however you wanna auth
var Factual = require('factual-api');
var factual = new Factual(auth.key, auth.secret);
//factual.startDebug();

radius = 25000;
limit = 50;
offset = 10;

// Geo filter doc:
var array = new Array();
for (var i = 0; i < 1; i++) {

  reponse = factual.get('/t/places-us', {
    filters:{"$and":[{"country":{"$eq":"US"}},
  {"category_ids":{"$includes":"2, 3"}}]},
  geo:{"$circle":{"$center":[34.041195,-118.331518],"$meters":radius}}, offset:50*(i), limit:limit},
  function (error, res) {
    //console.log(res.data);
    array.push(res.data);
    
  });
  console.log(array);
}
// http://developer.factual.com/display/docs/Core+API+-+Geo+Filters

auth.js = var KEY = 'YpDcXQ5Opfe39maD5vs1PzH684yMVnU8NEPQriz1';
var SECRET = '6vWYfMXIixPbkxxWNz8OEvKq6LkNqP4Ldh49BgBc';

module.exports = {
key: KEY,
secret: SECRET
};