.env.development.local May 2026

require('dotenv').config({ path: './.env.development.local', });

Environment-specific configuration is a common challenge in software development. Different environments require distinct settings, such as database connections, API keys, and server configurations. Hardcoding these settings directly into the application code can lead to errors, security vulnerabilities, and difficulties in maintaining and scaling the application. To address this issue, developers often use environment files, which store configuration settings specific to each environment. .env.development.local

".env.development.local: A Best Practice for Environment-Specific Configuration in Software Development" require('dotenv')

DB_HOST=localhost DB_PORT=5432 DB_USERNAME=myuser DB_PASSWORD=mypassword API_KEY= myapikey Example of a dotenv configuration file: require('dotenv').config({ path: './.env.development.local'