Runtime Configuration
Runtime configuration refers to the practice of setting and adjusting application parameters, settings, or behavior while the software is running, without requiring a restart or redeployment. It enables dynamic control over features, performance tuning, and environment-specific adjustments. This is commonly implemented using configuration files, environment variables, or dedicated configuration management tools.
Developers should use runtime configuration to build adaptable and maintainable applications that can respond to changing requirements or environments in real-time. Key use cases include feature flagging for A/B testing, adjusting logging levels for debugging, and managing database connections or API endpoints across different deployment stages (development, staging, production). It reduces downtime and enhances operational flexibility.