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rollup-plugin-dotenv

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    rollup-plugin-dotenv

Rollup plugin that loads available .env files and replaces the defined variables with their values


Version published
Maintainers
1
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801 kB
Created

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Source

rollup-plugin-dotenv

Installation

npm install rollup-plugin-dotenv

Usage

Create a rollup.config.js configuration file and import the plugin:

import dotenv from "rollup-plugin-dotenv"

export default {
  input: "src/index.js",
  output: [
    dir: "dist/build"
  ],
  plugins: [
    dotenv()
  ]
}

create your .env file in the root of your project.

# .env
FOO=bar

so you can use FOO in your javascript files.

// src/index.js
console.log(process.env.FOO)

your env variables will be replaced by their values in your bundled file.

// dist/build/index.js
console.log('bar')

if you want to know more about the principle and restrictions of replacement, please read @rollup/plugin-replace notes.

Options

You can specify the options below.

cwd

Type: String Default: "."

directory in which to search for env files.

envKey

Type: String Default: "NODE_ENV"

key used to search for .env files by node environment

Rollup will merge env vars located at

[
  `.env.${process.env[envKey]}.local`,
  `.env.${process.env[envKey]}`,
  '.env.local',
  '.env',
]

so if you are in prod, rollup will search in

['.env.prod.local', '.env.prod', '.env.local', '.env']

and merge the result.

LICENSE (MIT)

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Last updated on 15 Apr 2024

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