NODE_ENV is undefined

[karlvr]

• [x] Tried the troubleshooting Wiki
• [x] Followed the migration Wiki

Describe the bug After upgrading from 3.2.0 to 3.3.0 my use of process.env.NODE_ENV returns undefined. It seems that 3.3.0 added support for process.env, but maybe clobbers NODE_ENV? I tried added to the blocklist, and I have safe set to true, but nothing seemed to change the behaviour except downgrading to 3.2.0.

To Reproduce Steps to reproduce the behavior:

1. Upgrade to 3.3.0
2. console.log(process.env.NODE_ENV)
3. Observe that it outputs undefined instead of development or production

Expected behavior The process.env.NODE_ENV should be untouched.

[github-actions[bot]]

Hey, thank you for opening this issue! 🙂 To boost priority on this issue and support open source please tip the team at https://issuehunt.io/r/goatandsheep/react-native-dotenv/issues/251

[goatandsheep]

Hi @karlvr I created a branch that added NODE_ENV to the process.env test, which seemed to pass (check PR #252 ). I didn't see your thread in the discussions section, but that's okay we're here now. I'm happy to assist further following priority boost

[tgwow]

Hello guys, I'm also having this behavior using multi-env.

I can only use multi-env if I set APP_ENV. My question is if i can have problems with NODE_ENV == undefined?

babel.config.js

api.cache.invalidate(() => process.env.NODE_ENV);
  console.log('env', process.env.NODE_ENV);
  console.log('benv', process.env.BABEL_ENV);
  console.log('appenv', process.env.APP_ENV);
  return {
    presets: ['module:metro-react-native-babel-preset'],
    plugins: [
      [
        'module:react-native-dotenv',
        {
          moduleName: '@env',
          path: '.env',
          safe: false,
          allowUndefined: true,
        },
      ]...

package.json

"start:dev": "APP_ENV=development expo start -c",
"start:prod": "APP_ENV=production expo start -c"

running production script the logs are:

transform[stdout]: env undefined
transform[stdout]: benv development
transform[stdout]: appenv production

the BABEL_ENV=development was expected?

[goatandsheep]

I figured out how to reproduce the error and I'm investigating

[tgwow]

@goatandsheep thank you for the quick answer. I'm building with expo ba --releaseChannel staging, but it always points to .env.production, do you think it has something to do with the above problem? The "benv" log outputs production.

[goatandsheep]

I figured out how to fix @karlvr 's problem.

@tgwow APP_ENV is not recommended behaviour and using development and production is not supposed to work using APP_ENV. Recommended behaviour is to use NODE_ENV=development. See the docs https://github.com/goatandsheep/react-native-dotenv#override-envname

[goatandsheep]

@tgwow look into creating a dev build https://docs.expo.dev/development/getting-started/

[allandiego]

im having a similar strange behavior using expo 44 and "react-native-dotenv": "^3.3.1" process.env.NODE_ENV return undefined but process.env have value i dont know how its possible

console.log(process.env);

/*
output:
Object {
  "NODE_ENV": "development",
}
*/

console.log(process.env.NODE_ENV);
/*
output:
undefined
*/

[douglascavanaugh]

RN 0.68.1/react-native-dotenv 3.3.1: If the output of "process.env.NODE_ENV" is undefined, don't set NODE_ENV on "process.env.NODE_ENV", set it on the const value:

const environment = process.env console.log(environment.NODE_ENV)

[exoriri]

@douglascavanaugh thanks, really helped. But why this trick with const environment = process.env works?

[github-actions[bot]]

Hey, thank you for opening this issue! 🙂 To boost priority on this issue and support open source please tip the team at https://issuehunt.io/r/goatandsheep/react-native-dotenv/issues/251