diff --git a/tests/network/RestfulClientTest.py b/tests/network/RestfulClientTest.py
index 8cf8eaaf..90d400c1 100644
--- a/tests/network/RestfulClientTest.py
+++ b/tests/network/RestfulClientTest.py
@@ -6,7 +6,7 @@ import unittest
 from simplejson import JSONDecodeError
 
 from Promise import Promise
-from vnpy.network.HttpClient import HttpClient
+from vnpy.network.HttpClient import HttpClient, Request
 
 
 class FailedError(RuntimeError):
@@ -22,9 +22,10 @@ class TestHttpClient(HttpClient):
         
         self.p = Promise()
     
-    def beforeRequest(self, method, path, params, data):
-        data = json.dumps(data)
-        return method, path, params, data, {'Content-Type': 'application/json'}
+    def beforeRequest(self, req):  #type: (Request)->Request
+        req.data = json.dumps(req.data)
+        req.headers = {'Content-Type': 'application/json'}
+        return req
     
     def onError(self, exceptionType, exceptionValue, tb, req):
         self.p.set_exception(exceptionValue)
diff --git a/vnpy/api/okexfuture/vnokexFuture.py b/vnpy/api/okexfuture/vnokexFuture.py
index 288955bc..263356b7 100644
--- a/vnpy/api/okexfuture/vnokexFuture.py
+++ b/vnpy/api/okexfuture/vnokexFuture.py
@@ -4,7 +4,7 @@ import urllib
 
 
 ########################################################################
-from vnpy.network.HttpClient import HttpClient
+from vnpy.network.HttpClient import HttpClient, Request
 
 
 ########################################################################
@@ -25,9 +25,9 @@ class OkexFutureHttpClient(HttpClient):
         self.apiSecret = apiSecret
 
 #----------------------------------------------------------------------
-    def beforeRequest(self, method, path, params, data):  # type: (str, str, dict, dict)->(str, str, dict, dict, dict)
-        args = params or {}
-        args.update(data or {})
+    def beforeRequest(self, req):  # type: (Request)->Request
+        args = req.params or {}
+        args.update(req.data or {})
         if 'sign' in args:
             args.pop('sign')
         if 'apiKey' not in args:
@@ -38,5 +38,6 @@ class OkexFutureHttpClient(HttpClient):
         sign = hashlib.md5(data.encode()).hexdigest().upper()
         data += "&sign=" + sign
 
-        return method, path, params, data, {'Content-Type': 'application/x-www-form-urlencoded'}
+        req.headers = {'Content-Type': 'application/x-www-form-urlencoded'}
+        return req
 
diff --git a/vnpy/network/HeadersAuthenticateHttpClient.py b/vnpy/network/HeadersAuthenticateHttpClient.py
deleted file mode 100644
index a50730e6..00000000
--- a/vnpy/network/HeadersAuthenticateHttpClient.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# encoding: UTF-8
-
-
-########################################################################
-from abc import abstractmethod
-
-from vnpy.network.HttpClient import HttpClient
-
-
-########################################################################
-class HeadersAuthenticateHttpClient(HttpClient):
-    """
-    该类简化了RESTFulAPI客户端的重载。
-    该类提供了一个setUser函数，可以方便地设置apiKey和apiSecret。
-    使用self.apiKey和self.apiSecret便可以访问设置后的值
-    要建立一个签名在HTTP Headers的RESTFul客户端，继承该类并重载authencitate即可。
-    """
-    
-    #----------------------------------------------------------------------
-    def __init__(self):
-        super(HeadersAuthenticateHttpClient, self).__init__()
-        self.apiKey = None  # type: str
-        self.apiSecret = None  # type: str
-    
-    #----------------------------------------------------------------------
-    def beforeRequest(self, method, path, params, data):  # type: (str, str, dict, dict)->(str, str, dict, dict, dict)
-        return method, path, params, data, self.onAuthenticate(method, path, params, data)
-    
-    #----------------------------------------------------------------------
-    @abstractmethod
-    def onAuthenticate(self, method, path, params, data):
-        """
-        重载该函数以添加签名到头部
-        该函数在每个请求之前都会被调用。
-        @:return dict  返回的数据会被加入到HTTP请求头部中
-        
-        """
-        return {}