- ✅ Load environment variables from the command line
API_BASE=/v1/ core
- ✅ Load environment variables from
.env
files - ✅ Expand environment variables
API_URL=$API_BASE/users
- ✅ Define environment variables for a specific environment (e.g.
.env.production
) - ✅ Load priorities of
.env.*
files (e.g..env.production
>.env
) - ✅ Hierarchical cascading configuration in monorepo projects (Nx, Turbo, etc.)
apps/next-app/.env
>apps/.env
>.env
npm add @dotenv-run/core
// index.js
import { env } from "@dotenv-run/core";
env({
root: "../..",
verbose: true,
prefix: "^API_",
files: [".env"],
});
console.log(process.env.API_USERS);
given the following files:
.env
API_USERS=$API_BASE/v1/users
API_AUTH=$API_BASE/v1/auth
.env.dev
API_BASE=https://localhost:3000
.env.prod
API_BASE=https://dotenv-run.app
then:
NODE_ENV=dev node index.js
https://localhost:3000/v1/users
NODE_ENV=prod node index.js
https://dotenv-run.app/v1/users
MIT © Chihab Otmani