refactor: general-node and map-node to use flotte types for service registration

pkg/types/request/service_register.go

@@ -0,0 +1,8 @@
+package request
+
+type ServiceRegister struct {
+	Name     string `json:"name"`
+	NodeType string `json:"nodeType"`
+	Address  string `json:"address"`
+	Port     int    `json:"port"`
+}