nodemon, babel-node: how to set environment variable?

Question

Dev environment starts with this command:

nodemon -w src --exec \"babel-node src --presets es2015,stage-0\"

How do i create a global variable (or process.env variable) __DEV__ = true?

Answer 1

You can either add "env" property to nodemon.json, like this:

...
"env": {
    "__DEV__": "true"
}

Or you can prepend __DEV__="true" to start script in package.json. Both worked for me.

Answer 2

You can add a "nodemonConfig" property to package.json with your env info. Then execute nodemon in your scripts section.

"nodemonConfig": {
  "restartable": "rs",
  "ignore": [
  "node_modules/**/node_modules"
  ],
  "delay": "2500",
  "env": {
    "NODE_ENV": "development",
    "NODE_CONFIG_DIR": "./config"
  }
}

Answer 3

For windows: set __DEV__ = true&&nodemon -w src --exec \"babel-node src --presets es2015,stage-0\"