api completeness (#1460)

api/api.go

@@ -10,19 +10,22 @@ import (
 )
 
 type Api interface {
+	// Initialise options
+	Init(...Option) error
+	// Get the options
+	Options() Options
 	// Register a http handler
 	Register(*Endpoint) error
 	// Register a route
 	Deregister(*Endpoint) error
-	// Init initialises the command line.
-	// It also parses further options.
-	//Init(...Option) error
-	// Options
-	//Options() Options
-	// String
+	// Implemenation of api
 	String() string
 }
 
+type Options struct {}
+
+type Option func(*Options) error
+
 // Endpoint is a mapping between an RPC method and HTTP endpoint
 type Endpoint struct {
 	// RPC Method e.g. Greeter.Hello