Change receiver to handler, breaking change, grrr

server/options.go

@@ -12,6 +12,7 @@ type options struct {
 	name      string
 	address   string
 	id        string
+	version   string
 }
 
 func newOptions(opt ...Option) options {
@@ -41,6 +42,10 @@ func newOptions(opt ...Option) options {
 		opts.id = DefaultId
 	}
 
+	if len(opts.version) == 0 {
+		opts.version = DefaultVersion
+	}
+
 	return opts
 }
 
@@ -52,6 +57,10 @@ func (o options) Id() string {
 	return o.name + "-" + o.id
 }
 
+func (o options) Version() string {
+	return o.version
+}
+
 func (o options) Address() string {
 	return o.address
 }
@@ -59,3 +68,45 @@ func (o options) Address() string {
 func (o options) Metadata() map[string]string {
 	return o.metadata
 }
+
+func Name(n string) Option {
+	return func(o *options) {
+		o.name = n
+	}
+}
+
+func Id(id string) Option {
+	return func(o *options) {
+		o.id = id
+	}
+}
+
+func Version(v string) Option {
+	return func(o *options) {
+		o.version = v
+	}
+}
+
+func Address(a string) Option {
+	return func(o *options) {
+		o.address = a
+	}
+}
+
+func Registry(r registry.Registry) Option {
+	return func(o *options) {
+		o.registry = r
+	}
+}
+
+func Transport(t transport.Transport) Option {
+	return func(o *options) {
+		o.transport = t
+	}
+}
+
+func Metadata(md map[string]string) Option {
+	return func(o *options) {
+		o.metadata = md
+	}
+}