How to create multiple node environment?

Question

For managing python, I maintain multiple environments using conda.

i.e. for a new project, I create a new environment new-project for my new python project.

conda create -n new-project python=3.8

However, it is not clear to me how I can create new node environemnt for my different nodejs projects.

Have a look at this https://stackoverflow.com/a/54503474/3761628 — eol, Feb 15 '21 at 10:03

Louay Al-osh · Answer 1 · 2021-02-15T10:10:39.013

For node.js you can create your own env files that contain different values that better suites your environemnt

.env.test

API_KEY=TEST_API_KEY

.env.dev

API_KEY=DEV_API_KEY

to run node with this env variables

export $(xargs < ./env.test); node main.js;

and to access these variables in main.js file

console.log(process.env.API_KEY);

more over, you most likely are usnig npm to manage your project so use package.json scripts to ease your life

package.json

"scripts": {
   "start:dev" : "export $(xargs < ./env.dev); node main.js;",
   "start:test" : "export $(xargs < ./env.test); node main.js;
}

then you only do

npm run start:dev

in case you are using webpack you can pass all env variables inside configuration

1 Answers1