Move RegisterInterval into the server

server/options.go

@@ -27,6 +27,8 @@ type Options struct {
 
 	// The register expiry time
 	RegisterTTL time.Duration
+	// The interval on which to register
+	RegisterInterval time.Duration
 
 	// The router for requests
 	Router Router
@@ -168,6 +170,13 @@ func RegisterTTL(t time.Duration) Option {
 	}
 }
 
+// Register the service with at interval
+func RegisterInterval(t time.Duration) Option {
+	return func(o *Options) {
+		o.RegisterInterval = t
+	}
+}
+
 // WithRouter sets the request router
 func WithRouter(r Router) Option {
 	return func(o *Options) {