Overview
The dotenv package enables Flutter applications to load environment variables from a `.env` file, simplifying configuration management across different environments. It reads key-value pairs from the file and makes them accessible within the app, improving security by avoiding hardcoded credentials. This is especially useful for managing API keys, URLs, and other sensitive or environment-specific settings. The package supports all major platforms including Android, iOS, macOS, Windows, and Linux.
Use cases
- Managing API keys securely
- Configuring app behavior per environment
- Storing sensitive credentials
- Enabling multi-environment setups
- Avoiding hardcoded configuration values
Key features
- Loads variables from `.env` file
- Supports platform-agnostic configuration
- Simple key-value syntax
- Easy integration with Flutter apps
- Secure handling of secrets
Suitable for
- Development and staging environments
- Apps requiring multiple configuration profiles
- Teams managing shared configuration
- Projects with strict security requirements
- CI/CD pipelines using environment files
Considerations
- Never commit `.env` files to version control
- Ensure `.env` is added to .gitignore
- Variables are loaded at startup only
- Limited to simple string values
- Not suitable for complex data structures