From 810782a7ac654eead8c931921e939f1672a54960 Mon Sep 17 00:00:00 2001
From: aozhiwei <aozhiwei@kingsome.cn>
Date: Tue, 2 Aug 2022 16:37:19 +0800
Subject: [PATCH] 1

---
 server/web3helper/controllers/bcservice.js | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/server/web3helper/controllers/bcservice.js b/server/web3helper/controllers/bcservice.js
index 4ab202f..1ea50de 100644
--- a/server/web3helper/controllers/bcservice.js
+++ b/server/web3helper/controllers/bcservice.js
@@ -3,12 +3,22 @@ const sigUtil = require('@metamask/eth-sig-util');
 
 const app = require('j7/app');
 const utils = require('j7/utils');
+const bcutils = require('j7/bcutils');
 const bc = require('../blockchain');
 const metaFactory = require('../metadata/factory');
 
 async function isValidItem(session) {
   const itemId = session.request('item_id');
   const itemMeta = metaFactory.getMetaByKey('Item', itemId);
+  if (!itemMeta) {
+    session.rspErr(1, 'is not nft');
+    return;
+  }
+  if (itemMeta.getNftType() == bcutils.NONE_TYPE) {
+    session.rspErr(1, 'is not nft');
+    return;
+  }
+  session.rspOk();
 }
 
 async function isValidAccount(session) {