diff --git a/server/web3dbspider/services/events/BENftMarket/buy_order.js b/server/web3dbspider/services/events/BENftMarket/buy_order.js
index 6232ac4..1ebadbe 100644
--- a/server/web3dbspider/services/events/BENftMarket/buy_order.js
+++ b/server/web3dbspider/services/events/BENftMarket/buy_order.js
@@ -1,18 +1,12 @@
 const log = require('j7/log');
 const app = require('j7/app');
-const bcutils = require('j7/bcutils');
 const utils = require('j7/utils');
 const j7event = require('j7/event');
 const metaFactory = require('../../metadata/factory');
-const C = require('../../C');
-const gameapi = require('../gameapi');
-const http = require('j7/http');
-const config = require('j7/config');
-
-const BASE_URL = config('market_api');
+const BaseEventProcess = require('../common/BaseEventProcess');
 
 /*
-// 操作成功的事件ß
+// 操作成功的事件
 event BuyOrder(
   uint256 indexed tokenId,
   uint256 orderId,
@@ -25,16 +19,10 @@ event BuyOrder(
 );
 */
 
-class BuyOrder {
+class BuyOrder extends BaseEventProcess {
 
-  async start(instance, conn, event) {
-    this.instance = instance;
-    this.conn = conn;
-    this.event = event;
-
-    console.log('BuyOrder', event);
-    const blockNumber = event['blockNumber'];
-    const returnValues = event['returnValues'];
+  async start() {
+    const returnValues = this.getReturnValues();
 
     const tokenId = returnValues['tokenId'];
     const orderId = returnValues['orderId'];
@@ -45,42 +33,31 @@ class BuyOrder {
     const erc20 = returnValues['erc20'];
     const price = returnValues['price'];
 
-    while (true) {
-      try {
-        const {err, data} = await http.get
-        (BASE_URL,
-         {
-           'c': 'Market',
-           'a': 'eventBuyOrder',
-           'tokenId': tokenId,
-           'orderId': orderId,
-           'nftToken': nftToken,
-           'amount': amount,
-           'seller': seller,
-           'buyer': buyer,
-           'erc20': erc20,
-           'price': price
-         });
-        console.log(err, data);
+    const params = {
+      'c': 'Market',
+      'a': 'eventBuyOrder',
+      'tokenId': tokenId,
+      'orderId': orderId,
+      'nftToken': nftToken,
+      'amount': amount,
+      'seller': seller,
+      'buyer': buyer,
+      'erc20': erc20,
+      'price': price
+    };
+    await this.callGameApi
+    (params,
+     async (data) => {
         if (!data) {
-          throw 'data is empty5';
+          this.throwError('callGameApi error:' + data);
         }
         if (data['errcode'] == 0 ||
            data['errcode'] == 1) {
-          return;
+          return true;
         }
-      } catch (e) {
-        log.error(e);
-      }
-      await utils.sleep(3000 + utils.randRange(500, 1500));
-    }
-  }
-
-  throwError(err) {
-    const errMsg = 'processBuyOrderEvent:' +
-          utils.jsonEncode(this.instance) +
-          ' err:' + err;
-    throw errMsg;
+       return true;
+     });
+    await this.markOk();
   }
 
 }
diff --git a/server/web3dbspider/services/events/common/BaseEventProcess.js b/server/web3dbspider/services/events/common/BaseEventProcess.js
index f990e8a..b6e06ea 100644
--- a/server/web3dbspider/services/events/common/BaseEventProcess.js
+++ b/server/web3dbspider/services/events/common/BaseEventProcess.js
@@ -3,6 +3,7 @@ const app = require('j7/app');
 const bcutils = require('j7/bcutils');
 const utils = require('j7/utils');
 const j7event = require('j7/event');
+const http = require('j7/http');
 const constant = require('common/constant');
 const metaFactory = require('../../metadata/factory');
 
@@ -67,6 +68,25 @@ class BaseEventProcess {
     }
   }
 
+  async callGameApi(params, checkCb) {
+    while (true) {
+      try {
+        const {err, data} = await http.get('',params);
+        if (err) {
+          await utils.sleep(3000 + utils.randRange(500, 1500));
+          continue;
+        }
+        const ret = await checkCb(data);
+        if (ret) {
+          break;
+        }
+      } catch (e) {
+        log.error(e);
+      }
+      await utils.sleep(3000 + utils.randRange(500, 1500));
+    }
+  }
+
 }
 
 module.exports = BaseEventProcess;