go-config-loading

You can load typed configuration from multiple sources in Go by using a generic API to decode defaults, files, environment variables, flags, and secrets into a single struct. This approach applies deterministic deep merging to ensure consistent config across environments.

Hot reload configuration for Go services works by applying atomic updates with watch support. The system observes configuration sources for changes and triggers OnChange callbacks, allowing dynamic reconfiguration without restarting the application.

The best way to merge environment variables and config files in Go is through deterministic deep merging of maps. This process includes interpolating environment variables and secrets, consolidating them into a unified, type-safe Go config model.

You can debug where a specific Go configuration value comes from using the Explain feature. This observability function outputs the origin and merging logic of each configuration value, providing clear explainability for runtime inspection.

Yes, you can use this multi-source config loading for both CLI tools and API services. It targets Go services that combine defaults, config files, environment vars, flags, and secrets, supporting consistent config across various application types.

You handle errors when decoding multiple config sources in Go by applying specific error handling policies during the Load and Decode phases. These policies ensure safe updates and deterministic merging when interpolation or source parsing fails.