How to recognize "heroku" in Node.js?

Question

I've deployed an app to heroku and I want to make this app recognize platform information by itself. That is,

var dburi = '';
if( is_heroku )
  dburi = process.env.MONGOLAB_URI;
else
  dburi = 'mongodb://xxx';

Is there a way to get recognition (flag?) "is_heroku"?

Thanks!

hunterloftis · Accepted Answer · 2016-04-27 03:07:23Z

1

Just use a guard. It doesn't matter whether or not you're on Heroku:

var dburi = process.env.MONGOLAB_URI || 'mongodb://xxx';

That way, if you're in an environment that specifies MONGOLAB_URI, you use it, and if not you fall back to some default (for local development, for instance).

Another benefit of this is that you can point your app to connect to whichever db you like, eg:

MONGOLAB_URI='mongodb://some-db-in-the-cloud' node server.js

answered Apr 27, 2016 at 3:07

hunterloftis

13.8k5 gold badges51 silver badges53 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Veck Hsiao Over a year ago

Thanks! I forgot this usage.

Collectives™ on Stack Overflow

How to recognize "heroku" in Node.js?

1 Answer 1

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related