.env.local

As developers, we often work on projects that require different configurations for various environments, such as development, staging, and production. Managing these environment-specific variables can be a daunting task, especially when dealing with sensitive information like API keys, database credentials, or authentication tokens. This is where .env.local comes into play – a powerful tool that helps you manage environment-specific variables with ease.

require('dotenv').config(); const express = require('express'); const app = express(); .env.local

# .env.local.staging DATABASE_URL=postgresql://user:password@staging-host:5432/staging_database As developers, we often work on projects that

PORT=3000 NODE_ENV=development Next, create a .env.local file for environment-specific variables: such as development

Let's consider an example use case with Node.js and Express. Suppose you have a project that requires different database connections for development, staging, and production. You can define shared variables in a .env file: