diff --git a/server/web3service/app.js b/server/web3service/app.js
index 7e0bbab..1f74ba5 100644
--- a/server/web3service/app.js
+++ b/server/web3service/app.js
@@ -3,12 +3,12 @@ const event = require('j7/event');
 const config = require('j7/config');
 
 event.addListener(event.APP_INITIALIZED_EVENT, async () => {
-  require('./metadata/factory').init();
+  await require('./metadata/factory').init();
   await require('./blockchain').init();
-  require('./middlewares/factory').init();
-  require('./controllers/factory').init();
-  require('./models/factory').init();
-  require('./services/factory').init();
+  await require('./middlewares/factory').init();
+  await require('./controllers/factory').init();
+  await require('./models/factory').init();
+  await require('./services/factory').init();
   app.injectionSession(require('./session'));
   console.log(config('listen_port'));
   app.listen(config('listen_port'));
diff --git a/server/web3service/controllers/factory.js b/server/web3service/controllers/factory.js
index b57ba95..c4369a7 100644
--- a/server/web3service/controllers/factory.js
+++ b/server/web3service/controllers/factory.js
@@ -5,7 +5,7 @@ function add(name) {
   controllers[name].init();
 }
 
-function init() {
+async function init() {
 }
 
 exports.init = init;
diff --git a/server/web3service/metadata/factory.js b/server/web3service/metadata/factory.js
index d95aef6..4169add 100644
--- a/server/web3service/metadata/factory.js
+++ b/server/web3service/metadata/factory.js
@@ -68,7 +68,7 @@ function load() {
   }
 }
 
-function init() {
+async function init() {
   configDir = './config/';
   if (utils.isOnlineEnv()) {
     configDir = '../config/';
diff --git a/server/web3service/middlewares/factory.js b/server/web3service/middlewares/factory.js
index adf60be..983769a 100644
--- a/server/web3service/middlewares/factory.js
+++ b/server/web3service/middlewares/factory.js
@@ -1,4 +1,4 @@
-function init() {
+async function init() {
 
 }
 
diff --git a/server/web3service/models/factory.js b/server/web3service/models/factory.js
index fcae69e..000618a 100644
--- a/server/web3service/models/factory.js
+++ b/server/web3service/models/factory.js
@@ -9,7 +9,7 @@ function add(clsName, modName) {
   };
 }
 
-function init() {
+async function init() {
   add('Transaction', 'transaction');
   add('Log', 'log');
   add('UsedTokenId', 'used_tokenid');
diff --git a/server/web3service/services/factory.js b/server/web3service/services/factory.js
index adf60be..983769a 100644
--- a/server/web3service/services/factory.js
+++ b/server/web3service/services/factory.js
@@ -1,4 +1,4 @@
-function init() {
+async function init() {
 
 }