discordeno/website/docs/beginner/env.md

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4	Setup .env

How to Set Up a .env File with TypeScript in Node.js

Step 1: Install Required Packages

Before you can set up a .env file with TypeScript in Node.js, you need to install the required packages. Run the following command in your project's directory:

npm install dotenv @types/dotenv --save-dev

Step 2: Create a .env File

1. Create a new file named .env in the root directory of your project.
2. Add your environment variables to the file in the following format:

VAR_NAME=value

For example:

DB_HOST=localhost
DB_USER=admin
DB_PASS=password123

Step 3: Load Environment Variables

1. In your TypeScript file, import the dotenv package:

import dotenv from 'dotenv';

2. Call the config method of the dotenv package to load the environment variables from the .env file:

dotenv.config();

Step 4: Access Environment Variables

You can now access your environment variables using the process.env object. For example:

const dbHost = process.env.DB_HOST;
const dbUser = process.env.DB_USER;
const dbPass = process.env.DB_PASS;

And that's it! You have now set up a .env file with TypeScript in Node.js and can access your environment variables in your code.