resolver

type Endpoint struct {
	// e.g greeter
	Name string
	// HTTP Host e.g example.com
	Host string
	// HTTP Methods e.g GET, POST
	Method string
	// HTTP Path e.g /greeter.
	Path string
}

type Option func(o *Options)

type Options struct {
	Handler   string
	Namespace func(*http.Request) string
}

type Resolver interface {
	Resolve(r *http.Request) (*Endpoint, error)
	String() string
}