First commit: Outline of Router interface

router/router.go

@@ -0,0 +1,50 @@
+// Package router provides an interface for micro network routers
+package router
+
+import (
+	"errors"
+
+	"github.com/micro/go-micro/registry"
+)
+
+// Router is micro network router
+type Router interface {
+	// Initi initializes Router with options
+	Init(...Option) error
+	// Options returns Router options
+	Options() Options
+	// AddRoute adds new service route
+	AddRoute(*Route, ...RouteOption) error
+	// RemoveRoute removes service route
+	RemoveRoute(*Route) error
+	// GetRoute returns list of routes for service
+	GetRoute(*Service) ([]*Route, error)
+	// List returns all routes
+	List() ([]*Route, error)
+	// String implemens fmt.Stringer interface
+	String() string
+}
+
+// Option used by the Router
+type Option func(*Options)
+
+var (
+	DefaultRouter = NewRouter()
+
+	// Not found error when Get is called
+	ErrNotFound = errors.New("route not found")
+)
+
+// NewRouter creates new Router and returns it
+func NewRouter(opts ...Option) Router {
+	// set Registry to DefaultRegistry
+	opt := Options{
+		Registry: registry.DefaultRegistry,
+	}
+
+	for _, o := range opts {
+		o(&opt)
+	}
+
+	return newRouter(opts...)
+}