deploy nodejs and redis to heroku

[Tuấn Trần]

please help me.
i have web app using nodejs and redis.
when i deploy to heroku. i have add-on heroku-redis but my app not working.
my code :

var redis = require('redis');
var redisClient = redis.createClient("redis://h:p4[email protected]ec2-52-21-74-44.compute-1.amazonaws.com:46749");

<p>please give me solution ?</p>