How to obtain Heroku host url

Question

I have a nose.js pipeline on Heroku with review apps spwaned automatically for pull requests.

How can I get the url of heroku apps (https://xyz.herokuapp.com) at runtime using node.js or do I have to hardcode the value as an environment variable.

Steve · Accepted Answer · 2019-03-06 08:58:38Z

1

You should be able to get the xyz part of the URL from the HEROKU_APP_NAME environment variable:

process.env.HEROKU_APP_NAME

Heroku sets this environment variable automatically for review apps if you specify it in your app.json with

"env":{
  "HEROKU_APP_NAME": {
    "required": true
  },
  "HEROKU_PARENT_APP_NAME": {
    "required": true
  }
}

See https://devcenter.heroku.com/articles/github-integration-review-apps#heroku_app_name-and-heroku_parent_app_name

You can also get it for non-review apps I think see, https://devcenter.heroku.com/articles/dyno-metadata

answered Mar 6, 2019 at 8:58

Steve

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