v2-to-v3-upgrade-guide.md

json-to-heroku-env

Set remote Heroku environment variables from local exported JSON data.

v2.X.X to v3.X.X

Differences

In version 3.X.X, this package has moved to the standard of using a user-supplied runtime configuration file instead of NPM command arguments to designate the name of the Heroku app and the configuration key/value pairs.

Upgrading

This runtime configuration file should be placed in your application's root directory, and should be named .json_to_heroku_envrc.json. The JSON data in that file has two required keys, app and config - for example:

{
	"app": "my-heroku-app",
	"config": {
		"FOO": "greetings",
		"BAR": "friends"
	}
}

You can remove the --app and --path options from the NPM command in your package.json file, although --response-verbose remains a valid option.