FS Node Express

test.js

var express = require('express');
var featureswitches = require('featureswitches')('customer_key', 'environment_key');

var app = express();

featureswitches.sync();

app.get('/', function(req, res) {
    featureswitches.is_enabled('world')
    .then(function(result) {
        if (result instanceof Error) {
            res.send('Error...');
        } else {
            if(result == true) {
                res.send('Hello World!');
            } else {
                res.send('Hello USA!');
            }
        }
    });
});

app.listen(3000, function() {
    console.log('Listening on port 3000!');
});