1

server/web3helper/services/baseservice.js

@@ -0,0 +1,13 @@
+class BaseService {
+
+  constructor(session) {
+    this.session = session;
+  }
+
+  getSession() {
+    return this.session;
+  }
+
+}
+
+module.exports = BaseService;

server/web3helper/services/factory.js

@@ -1,5 +1,25 @@
-function init() {
+const services = {};
 
+function add(clsNames, modName) {
+  const modClass = require('./' + modName);
+  clsNames.forEach((clsName) => {
+    services[clsName] = {
+      'clsName': clsName,
+      'modName': modName,
+      'class': modClass
+    }
+  });
+}
+
+function init() {
+  add(['Present'], 'present');
+  create('Present', null).init();
+}
+
+function create(name, session) {
+  const module = services[name];
+  return new module['class'](session);
 }
 
 exports.init = init;
+exports.create = create;

server/web3helper/services/present.js

@@ -1,5 +1,11 @@
-function init() {
+const BaseService = require('./baseservice');
+
+class Present extends BaseService {
+
+  async init() {
+
+  }
 
 }
 
-exports.init = init;
+module.exports = Present;