events: add store implementation (#1957)

events/stream/nats/options.go

@@ -0,0 +1,42 @@
+package nats
+
+import "crypto/tls"
+
+// Options which are used to configure the nats stream
+type Options struct {
+	ClusterID string
+	ClientID  string
+	Address   string
+	TLSConfig *tls.Config
+}
+
+// Option is a function which configures options
+type Option func(o *Options)
+
+// ClusterID sets the cluster id for the nats connection
+func ClusterID(id string) Option {
+	return func(o *Options) {
+		o.ClusterID = id
+	}
+}
+
+// ClientID sets the client id for the nats connection
+func ClientID(id string) Option {
+	return func(o *Options) {
+		o.ClientID = id
+	}
+}
+
+// Address of the nats cluster
+func Address(addr string) Option {
+	return func(o *Options) {
+		o.Address = addr
+	}
+}
+
+// TLSConfig to use when connecting to the cluster
+func TLSConfig(t *tls.Config) Option {
+	return func(o *Options) {
+		o.TLSConfig = t
+	}
+}