diff --git a/server/web3service/metadata/factory.js b/server/web3service/metadata/factory.js
index dea8a6d..5de4db5 100644
--- a/server/web3service/metadata/factory.js
+++ b/server/web3service/metadata/factory.js
@@ -97,18 +97,22 @@ function init() {
                     'Item'
                    );
   {
-    const jsonData = utils.readJsonFromFile('');
+    const jsonData = utils.readJsonFromFile(configDir + 'web3service.cluster.json');
+    jsonData.forEach((item) => {
+      if (item['instance_id'] == app.getInstanceId()) {
+        item['nets'].forEach((netId) => {
+          registerMetaClass(configDir + 'web3.json',
+                            '',
+                            'Web3'
+                           );
+          registerMetaClass(configDir + 'contract.json',
+                            'name',
+                            'Contract'
+                           );
+        });
+      }
+    });
   }
-  /*
-  registerMetaClass(configDir + 'web3.json',
-                    '',
-                    'Web3'
-                   );
-  registerMetaClass(configDir + 'contract.json',
-                    'name',
-                    'Contract'
-                   );
-  */
   load();
   {
     traverseMetaList('MarketDb', (dbConf, idx) => {