WebAPI constructs a http.Handler with all application routes bound.

WithCORS provides configuration options for CORS.

WithFileServer provides configuration options for file server.

AuthConfig contains auth service specific config.

Config contains all the mandatory systems required by handlers.

Options represent optional parameters.

SalesConfig contains sales service specific config.

StaticSite represents a static site to run.

RouteAdder defines behavior that sets the routes to bind for an instance of the service.