ConfigFromViper construct app Config from viper.

Flags register viper compatible pflags for app.

New creates a new App.

An App is a modular application with HTTP server.

API is a service that exposes API routes.

Checkable is a service that can expose its health status.

Closable is a service that needs to clean its state at the end of its execution.

Initializable is a service that can initialize.

Loggaable is a service that holds a logger.

Checkable is a service that can expose metrics.

Middleware is a service that exposes a middleware to be set on an App.

Runnable is a service that maintains long living task(s).