How to Use Environment Variables with a dotenv(.env) File for Node.js | Node Config with dotenv

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How to Use Environment Variables with a dotenv(.env) File for Node.js | Node Config with dotenv **Title: How to Use Node Environment Variables with a DotEnv File for Node.js** In this tutorial, learn how to manage environment variables in Node.js using the popular **dotenv** package. Environment variables are essential for separating configuration data (like API keys, database credentials, and server ports) from your main codebase. With the dotenv package, you can load environment variables from a `.env` file, making your app more secure, manageable, and portable. Follow along to see how easy it is to set up and use environment variables in your Node.js project. ### Steps to Use Environment Variables with DotEnv in Node.js: #### 1. **Install the dotenv Package**: - First, open your terminal and navigate to your project directory. - Run the following command to install dotenv: ```bash npm install dotenv ``` #### 2. **Create a `.env` File**: - In the root directory of your project, create a file named `.env`. - This file will store your environment variables. For example: ```env PORT=3000 DATABASE_URL=mongodb://localhost:27017/mydb API_KEY=your_api_key_here ``` - **Note**: Never commit your `.env` file to a public repository. Add `.env` to your `.gitignore` file to keep it private. #### 3. **Configure dotenv in Your Project**: - In your entry file (e.g., `index.js` or `app.js`), add the following line at the top: ```javascript require('dotenv').config(); ``` - This loads the environment var
  2024/10/15      youtube

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