How can I use dotenv for advanced configuration in my Node.js app?

How can I use dotenv for advanced configuration in my Node.js app?

You can use dotenv to manage environment variables in your Node.js app. For advanced usage, consider loading multiple .env files based on the environment, like .env.development or .env.production.

Can I load different .env files based on the NODE_ENV variable?

Yes, you can check the NODE_ENV variable in your code and load the appropriate .env file using a package like dotenv-flow.

What if I want to override specific variables in my .env file?

You can override specific variables by setting them directly in your environment before starting your application, or by using a separate .env.local file.

Is it safe to store sensitive information in .env files?

It's generally safe as long as you don't commit your .env files to version control. Use .gitignore to exclude them.