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54 lines
1.2 KiB
Markdown
54 lines
1.2 KiB
Markdown
---
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sidebar_position: 4
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sidebar_label: Setup .env
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---
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# How to Set Up a .env File with TypeScript in Node.js
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## Step 1: Install Required Packages
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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:
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`npm install dotenv @types/dotenv --save-dev`
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## Step 2: Create a .env File
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1. Create a new file named `.env` in the root directory of your project.
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2. Add your environment variables to the file in the following format:
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VAR_NAME=value
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For example:
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```js
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DB_HOST = localhost
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DB_USER = admin
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DB_PASS = password123
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```
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## Step 3: Load Environment Variables
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1. In your TypeScript file, import the `dotenv` package:
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```ts
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import dotenv from 'dotenv'
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```
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2. Call the config method of the dotenv package to load the environment variables from the .env file:
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```ts
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dotenv.config()
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```
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## Step 4: Access Environment Variables
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You can now access your environment variables using the process.env object. For example:
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```ts
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const dbHost = process.env.DB_HOST
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const dbUser = process.env.DB_USER
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const dbPass = process.env.DB_PASS
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```
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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.
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