Using a free RedisToGo Nano instance on heroku, or the default settings on your local environment

package.json

{
  "dependencies": {
    "redis": "^0.10.1"
  }
}

using_redis.js

var redis;

if (process.env.REDISTOGO_URL) {
	var rtg = require("url").parse(process.env.REDISTOGO_URL);
	redis = require("redis").createClient(rtg.port, rtg.hostname);
	redis.auth(rtg.auth.split(":")[1]);
} else {
	redis = require("redis").createClient();
}