nodejs 如何加载 .env 文件？

Question

path：

- index.js
- .env.production
- .env.development

.env.production

TOKEN = 'prod'

.env.development

TOKEN = 'dev'

index.js

console.log(process.env.TOKEN )

My desired effect:

$ npm run dev
> dev

$ npm run prod
> prod

Development environment:

windows10

vscode

Answer 1

If you want to run your development server on

npm run dev 

Just include this code in your package.json file in the script section.

Consider this as your package.json

{
  "name": "sample-app",
  "version": "1.0.0",
  "description": "",
  "main": "app.js",
  "scripts": {
    "dev": "npm run dev",
 },
  "author": "Raja Shekar",
  "license": "ISC",
  "dependencies": {
    "couchbase": "^2.6.10"
  }
}

After saving package.json file use,

npm run dev

and you'll see your development server running

Answer 2

dotenv满足需求。