Unfortunately the app crashed at first on Heroku. I made a few modifications.

The app port needed to be modified:

// CORE UPDATE: switch to production port
var port = process.env.PORT || config.port;
app.listen(port, config.address);

The redis port is used for more than the lines you noted. Instead the following code overwrites the core `config` object making it more flexible.

// CORE UPDATE:
if (process.env.REDISTOGO_URL) {
// use production (Heroku) redis configuration
// overwrite `config` to keep it simple
var rtg = require(‘url’).parse(process.env.REDISTOGO_URL);
config.redis.port = rtg.port;
config.redis.host = rtg.hostname;
config.redis.password = rtg.auth.split(“:”)[1];
}

I also didn’t need to remove the address line from config.json.

Hope this helps a future reader save some time.