Setting up process.env variable from package json script

Question

I want to set process.env.ENV as TEST or null using a script from package.json but below command is not working via package.json (it works when I run it directly on cmd.).

script { "start": "cross-env ENV=null && node app.js", "test": "cross-env ENV=TEST && istanbul cover mocha test" }

I am using corss-env to use a common syntax for setting up env variable for Windows and Linux.

Running set ENV=TEST or set ENV=null before npm start or npm test work fine.

Manan Vaghasiya · Accepted Answer · 2017-03-13 11:28:04Z

1

You don't need && in scripts

try

"scripts": {
  "start": "cross-env ENV=null node app.js",
  "test": "cross-env ENV=TEST istanbul cover mocha test"
}

answered Mar 13, 2017 at 11:28

Manan Vaghasiya

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2 Comments

mehtak Over a year ago

Thanks, this worked. Further, what commands need && and what not?

Manan Vaghasiya Over a year ago

you use && when you need to run second command after the first ran successfully. Setting env variable before running command like above itself is not really a command, so no need to use &&. Also see stackoverflow.com/questions/7128542/…

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