Overview
flutter_dotenv is a Flutter package that enables developers to manage environment variables in their applications using a `.env` file. It simplifies configuration by loading key-value pairs from the file into the app at runtime, making it easy to handle different settings across development, testing, and production environments. The package supports all major platforms including Android, iOS, Web, macOS, Windows, and Linux. It integrates seamlessly with Flutter projects via a simple pub add command.
Use cases
- Managing API keys securely
- Switching between dev and prod configurations
- Storing sensitive credentials
- Customizing app behavior per environment
- Enabling feature flags
- Avoiding hardcoded values
Key features
- Simple .env file integration
- Cross-platform support
- Runtime variable loading
- Easy setup with pub add
- Supports environment-specific variables
- Minimal boilerplate
Suitable for
- Developers managing multiple environments
- Teams needing secure config management
- Apps requiring dynamic configuration
- Projects using CI/CD pipelines
- Frontend developers working with backend APIs
- Prototyping with configurable settings
Considerations
- Never commit .env files to version control
- Ensure .env file is included in build process
- Use with caution for highly sensitive data
- Verify file paths in different deployment scenarios
- Handle missing variables gracefully
- Be aware of case sensitivity in variable names