diff --git a/f8/jsonhttprequest.cc b/f8/jsonhttprequest.cc
index f245bd7..1409aac 100644
--- a/f8/jsonhttprequest.cc
+++ b/f8/jsonhttprequest.cc
@@ -9,24 +9,38 @@
 namespace f8
 {
 
-    JsonHttpRequest::JsonHttpRequest()
+    JsonHttpRequest::JsonHttpRequest(unsigned long saddr,
+                                     const std::string url,
+                                     const std::string& query_str,
+                                     a8::CommonCbProc cb)
     {
-        params = std::make_shared<a8::XObject>();
-        resp_xobj = a8::MutableXObject::CreateObject();
+        saddr_ = saddr;
+        url_ = url;
+        query_str_ = query_str;
+        cb_ = cb;
+        params_ = std::make_shared<a8::XObject>();
+        resp_xobj_ = a8::MutableXObject::CreateObject();
+
+        params_->ReadFromUrlQueryString(query_str);
+        GetResp()->SetVal("errcode", 0);
+        GetResp()->SetVal("errmsg", "");
     }
 
     JsonHttpRequest::~JsonHttpRequest()
     {
-        if (context && free_context)  {
-            free_context(context);
+        Response();
+    }
+
+    void JsonHttpRequest::Response()
+    {
+        if (!resped_) {
+            if (cb_) {
+                std::string response;
+                resp_xobj_->ToJsonStr(response);
+                cb_(a8::Args({a8::HttpResponse(response)}));
+            }
+            resped_ = true;
         }
     }
 
-    std::string JsonHttpRequest::Response()
-    {
-        std::string response;
-        resp_xobj->ToJsonStr(response);
-        return a8::HttpResponse(response);
-    }
-
 }
diff --git a/f8/jsonhttprequest.h b/f8/jsonhttprequest.h
index 97311ca..ea27dec 100644
--- a/f8/jsonhttprequest.h
+++ b/f8/jsonhttprequest.h
@@ -9,24 +9,28 @@ namespace a8
 namespace f8
 {
 
-    struct JsonHttpRequest
+    class JsonHttpRequest
     {
-        bool pending = false;
-        unsigned long saddr = 0;
-        int socket_handle = 0;
-        time_t create_time = 0;
-        time_t handle_time = 0;
-        std::string query_str;
-        std::shared_ptr<a8::XObject> params;
-        std::shared_ptr<a8::MutableXObject> resp_xobj;
+    private:
+        unsigned long saddr_ = 0;
+        std::string url_;
+        std::string query_str_;
+        std::shared_ptr<a8::XObject> params_;
+        std::shared_ptr<a8::MutableXObject> resp_xobj_;
+        a8::CommonCbProc cb_;
+        bool resped_ = false;
 
-        int async_pending_count = 0;
-        void* context = nullptr;
-        void (*free_context)(void*) = nullptr;
-
-        JsonHttpRequest();
+    public:
+        JsonHttpRequest(unsigned long saddr,
+                        const std::string url,
+                        const std::string& query_str,
+                        a8::CommonCbProc cb);
         ~JsonHttpRequest();
-        std::string Response();
+
+        const std::string GetUrl() { return this->url_; }
+        std::shared_ptr<a8::XObject> GetParams() { return this->params_; }
+        std::shared_ptr<a8::MutableXObject> GetResp() { return this->resp_xobj_; }
+        void Response();
     };
 
 }