Utilizing process.env in TypeScript can be a bit tricky as dot notation is not effective for accessing its properties

When I set my scripts to: 

"start": "NODE_ENV=development nodemon dist/Server.js"
, I am encountering an issue when trying to access NODE_ENV in my code. Both dot and bracket notation return undefined:

The dependencies in my project are: "@types/node": "^8.0.53" "typescript": "^2.6.1" node 8.9.1 installed locally

Even after console.logging it, it seems like process.env.NODE_ENV is not even present. 

console.log(process.env.NODE_ENV);
console.log(process.env["NODE_ENV"]);
as suggested here What could be the issue here?

typescripttypescript-typings

Answer №1

To retrieve the NODE_ENV variable in your code, you can use the following setup which has been successful for me:

package.json:

  "scripts": {
    "test": "NODE_ENV=development nodemon test.js"
  }

Within test.js file:

console.log(process.env.NODE_ENV)

Upon running npm test:

[nodemon] 1.12.1
[nodemon] to restart at any time, enter `rs`
[nodemon] watching: *.*
[nodemon] starting `node test.js`
development
[nodemon] clean exit - waiting for changes before restart

(This configuration has been tested on node v7.10.1, but should work on other versions as well)

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